Arsenic removal from arsenic containing copper concentrate with heat treatment and magnetic separation Reviewed International journal

H. MIKI, G.P.W. SUYANTARA, K. SASAKI, T. HIRAJIMA, Y. AOKI, H. FUKUDA

Proc. of 11th Copper2022 International Conference   2022.11

The estimation of microgram powder electrode system on sulfide mineral oxidation for mineral processing Reviewed International journal

H. MIKI, H. FUKUDA, G.P.W. SUYANTARA, B. DANIYAROV, T. HIRAJIMA, K. SASAKI

Proc. of 11th Copper2022 International Conference   2022.11

Separation of enargite and chalcocite with H2O2 oxidation treatment using flotation method Reviewed International journal

B. DANIYAROV, G.P.W. SUYANTARA, H. MIKI, T. HIRAJIMA, K. SASAKI, D. OCHI, Y. AOKI

Proceedings of the 16th International Symposium on East Asian Resources Recycling Technology (EARTH2022)   2022.10

ENHANCED LEACHING OF ARSENIC CONTAINING COPPER SULFIDE WITH SILVER ADDITION IN ACID SOLUTION Reviewed International journal

Hajime Miki, Akinobu Iguchi, Tsuyoshi Hirajima, Sasaki Keiko

Proceedings of Copper2016 International Conference   1499 - 1510   2016.11

Review of three leading program joint fieldwork on 2014 at Beppu geothermal area Reviewed International journal

Hajime Miki

87 - 89   2015.11

Review of three leading program + Texas State University, joint fieldwork on 2015 at Okinoshima island Reviewed International journal

Hajime Miki

90 - 92   2015.11

Study of Silicate Coating on Pyrite Oxidation Suppression: Fundamental Mechanism and Kinetic Analysis Reviewed International journal

Hajime Miki, Tsuyoshi Hirajima, Mutia Dewi Yuniati, Keiko Sasaki

Proceedings of International Symposium on Earth Science and Technology 2013   189 - 192   2013.12

Suppression of Pyrite Oxidation by Silicate Coating with Catechol Complex Oxidation Kinetics Estimation with Electrochemistry Reviewed International journal

Hajime Miki, Tsuyoshi Hirajima, Mutia Dewi Yuniati, Keiko Sasaki

The 12th International Symposium on East Asian Resources Recycling Technology   601 - 604   2013.11

The kinetics of the copper-catalysed oxidation of iron(II) in chloride solutions Reviewed International journal

Hajime Miki, Michael James Nicol

Hydrometallurgy 2008, Proceedings of 6th International Symposium   971 - 979   2008.10

Synergism in the oxidation of covellite and pyrite by iron(III) and copper(II) ions in chloride solutions Reviewed International journal

Hajime Miki, Michael James Nicol

Hydrometallurgy 2008, Proceedings of 6th International Symposium   646 - 652   2008.10

Mechanisms of Catalytic Leaching of Chalcopyrite Reviewed International journal

Hajime Miki, Naoki Hiroyoshi, Shigeto Kuroiwa, Masami Tsunekawa, Tsuyoshi Hirajima

Proceedings of 5th Copper2003-Cobre2003 International Conference   6   383 - 394   2003.10

Batch Leaching Behavior of Chalcopyrite in Acidic Ferric Sulfate Solutions - Relationship between Solution Redox Potential and Copper Extraction - Reviewed

Hajime Miki, Naoki Hiroyoshi, Tsuyoshi Hirajima, Masami Tsunekawa

Journal of MMIJ   117   215 - 220   2001.3

Effect of oxidation treatment on the selective separation of molybdenite from chalcocite using flotation Reviewed International journal

Berdakh Daniyarov, Miki Hajime, Suyantara Gde Pandhe Wisnu, Hirajima Tsuyoshi, Sasaki Keiko, Nakao Ryota, Ochi Daishi, Aoki Yuji

Powder Technology   431   119078   2024.1   （ ISSN:0032-5910 eISSN:1873-328X ）

Selective Flotation of Copper Concentrates Containing Arsenic Minerals Using Potassium Amyl Xanthate and Oxidation Treatment Reviewed International journal

Suyantara Gde Pandhe Wisnu, Miki Hajime, Hirajima Tsuyoshi, Sasaki Keiko, Ochi Daishi, Aoki Yuji

Materials Transactions   65 ( 1 )   27 - 36   2024.1   （ ISSN:13459678 eISSN:13475320 ）

Selective flotation of molybdenite and chalcocite using hydrogen peroxide International journal

Daniyarov Berdakh, Hajime Miki, Gde Pandhe Wisnu Suyantara, Kadirova Zukhra, Akhmadjonov Oybek, Ziyatov Daminbek, Daminova Shakhlo

2023.12

Sodium metabisulfite as a copper depressant in the selective flotation of copper-molybdenum concentrate using seawater Reviewed International journal

Berdakh Daniyarov, Miki Hajime, Suyantara Gde Pandhe Wisnu, Hirajima Tsuyoshi, Sasaki Keiko, Nakao Ryota, Ochi Daishi, Aoki Yuji, Akbarshokh Ulmaszoda, Kumika Ura

Advanced Powder Technology   34 ( 12 )   104258   2023.12   （ ISSN:0921-8831 eISSN:1568-5527 ）

Evaluation of micro powder electrode on sulfide mineral leaching for hydrometallurgical process Reviewed International journal

HAJIME MIKI, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

The 18th International Conference on Quality in Research   2023.10

Study on the Effect of Iron Oxide-Hydroxide Nanoparticles on Mixed Flotation of Bornite and Molybdenite Reviewed International journal

Kazuto Satomura, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki

The 18th International Conference on Quality in Research   2023.10

The Effect Of Various Reagents On Selective Flotation Of Molybdenite And Chalcocite Reviewed International journal

Ryota Nakao, Hajime Miki, Eska Putra Dwitama, Keiko Sasaki, Daishi Ochi, Yuji Aoki, Gde Pandhe Wisnu Suyantara

The 18th International Conference on Quality in Research   2023.10

Investigation of Chalcopyrite Floatability in the Presence of Goethite Nanoparticles Reviewed International journal

Akbarshokh Ulmaszoda, Gde Pandhe Wisnu Suyantara, Intan Nurul Rizki, Keiko Sasaki, Hajime Miki

The 18th International Conference on Quality in Research   2023.10

Utilizing Oxidation Treatment for Arsenic Mineral Removal in Producing a Cleaner Copper Concentrate using Flotation Reviewed International journal

Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Yuji Aoki, Daishi Ochi, Tsuyoshi Hirajima

The 18th International Conference on Quality in Research   2023.10

Arsenic removal with heat treatment - magnetic separation from dirty copper conc Reviewed International journal

HAJIME MIKI, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

The 18th International Conference on Quality in Research   2023.10

Preliminary Evaluation of the Impact of Nanoparticles on Enargite Flotation Reviewed International journal

Eska Putra Dwitama, Akbarshokh Ulmaszoda, Gde Pandhe Wisnu Suyantara, Keiko Sasaki, Hajime Miki

The 18th International Conference on Quality in Research   2023.10

Effect of goethite (α-FeOOH) nanoparticles on the surface properties and flotation behavior of chalcopyrite Reviewed International journal

Suyantara, GPW; Rizki, IN; Ulmaszoda, A; Miki, H; Sasaki, K

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING   11 ( 3 )   110006   2023.6   （ ISSN:2213-2929 eISSN:2213-3437 ）

Significance of Fe contents on the surface of the gold ores in gold leaching by thiourea and ethylene thiourea Reviewed International journal

K. SASAKI, I. SUYAMA, Y. AOKI, K.T.KONADU, CINDY, C. CHUAICHAM, H. MIKI, T. HIRAJIMA

Minerals Engineering   191   107957   2023.6

Effect of pH and Precipitations on Copper-Molybdenum Rougher Flotation in Seawater Reviewed International journal

Tanaka Yoshiyuki, Miki Hajime, Suyantara Gde Pandhe Wisnu, Aoki Yuji, Okamoto Hideyuki, Ura Kumika, Hirajima Tsuyoshi

Materials Transactions   64 ( 6 )   1125 - 1231   2023.6   （ ISSN:13459678 eISSN:13475320 ）

Effect of hydrogen peroxide on selective flotation of chalcocite and enargite Reviewed International journal

G.P.W.SUYANTARA, B.DANIYAROV, H.MIKI, H.TSUYOSHI, K.SASAKI, D.OCHI, Y.AOKI

International Journal of Mining Science and Technology   33 ( 6 )   703   2023.6

Effect of hydrogen peroxide on selective flotation of chalcocite and enargite Reviewed International journal

International Journal of Mining Science and Technology   2023.3

The Effect of Microwave Pre-treatment on the Magnetic Properties of Enargite and Tennantite and Their Separation from Chalcopyrite Reviewed International journal

Minerals   13 ( 3 )   2023.3   （ eISSN:2075-163X ）

Significance of Fe contents on the surface of the gold ores in gold leaching by thiourea and ethylene thiourea

Sasaki, K; Suyama, I; Aoki, Y; Konadu, KT; Chuaicham, C; Miki, H; Hirajima, T; Hirajima, T

MINERALS ENGINEERING   191   2023.1   （ ISSN:0892-6875 ）

Study on the effect of sodium metabisulfite on selective flotation of chalcopyrite and molybdenite with seawater Reviewed International journal

R. OGI, G.P.W. SUYANTARA, H. MIKI, T. HIRAJIMA, K. SASAKI Y. AOKI, D. OCHI

Proc. of International Symposium on Earth Science and Technology 2022   2022.12

Separation of enargite and chalcocite with H2O2 oxidation treatment using flotation method Reviewed International journal

B. DANIYAROV, G.P.W. SUYANTARA, H. MIKI, T. HIRAJIMA, K. SASAKI D. OCHI, Y. AOKI

Proc. of International Symposium on Earth Science and Technology 2022   2022.12

Effect of sodium metabisulfite and slaked lime on the floatability and surface properties of chalcopyrite Reviewed International journal

Suyantara Gde Pandhe Wisnu, Semoto Yuki, Miki Hajime, Hirajima Tsuyoshi, Sasaki Keiko, Ochi Daishi, Aoki Yuji, Berdakh Daniyarov, Ura Kumika

Powder Technology   408   117750   2022.8   （ ISSN:0032-5910 eISSN:1873-328X ）

Effect of Sodium Metabisulfite on Selective Flotation of Chalcopyrite and Molybdenite Reviewed International journal

Minerals   1377 - 1390   2021.11

Effect of Na2SO3 on the floatability of chalcopyrite and enargite Reviewed International journal

Minerals Engineering   173   2021.10

The study of selective flotation separation of copper-molybdenite with seawater Reviewed International journal

Proceedings of International Symposium on Earth Science and Technology 2020   2020.12

Selective flotation for removal of impurities on copper concentrates with various redox reactions Reviewed International journal

Proceedings of IMPC 2020:XXX International Mineral Processing Congress   2020.11

The study of selective flotation separation of copper-molybdenite with seawater Reviewed International journal

Proceedings of International Symposium on Earth Science and Technology 2020   2020.11

Effect of a sulfite reagent on floatability of chalcopyrite and enargite Reviewed International journal

Proceedings of IMPC 2020:XXX International Mineral Processing Congress   2020.11

Effect of seawater and process water on copper-molybdenum rougher flotation in batch and pilot test Reviewed International journal

Proceedings of IMPC 2020:XXX International Mineral Processing Congress   2020.11

Bubble interactions with chalcopyrite and molybdenite surfaces in seawater Reviewed

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

Minerals Engineering   157   106536 - 106536   2020.10

Catalytic mechanism of activated carbon-assisted bioleaching of enargite concentrate Reviewed

Keishi Oyama, Kazuhiko Shimada, Junichiro Ishibashi, Keiko Sasaki, Hajime Miki, Naoko Okibe

Hydrometallurgy   196   2020.9

Effect of carbonaceous matter on bioleaching of Cu from chalcopyrite ore Reviewed

Kojo T. Konadu, Ryotaro Sakai, Diego M. Mendoza, Chitiphon Chuaicham, Hajime Miki, Keiko Sasaki

Hydrometallurgy   195   105363 - 105363   2020.8

Effect of H₂O₂ and potassium amyl xanthate on separation of enargite and tennantite from chalcopyrite and bornite using flotation Reviewed

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki

Minerals Engineering   152   106371 - 106371   2020.6

Study of selective flotation of copper sulfide and As containing copper minerals Reviewed International journal

Yuta Orii, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Tsuyoshi Hirajima, Shigeto Kuroiwa, Yuji Aoki

Proceedings of International Symposium on Earth Science and Technology 2019   2019.12

Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation Reviewed International journal

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki

Proceedings of Flotation'19 International Conference   2019.10

Effect of seawater on bubble interactions with chalcopyrite and molybdenite surfaces Reviewed International journal

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki

Proceedings of Flotation'19 International Conference   2019.10

Separation of molybdenite and chalcopyrite using various oxidation treatments Reviewed International journal

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi, Mitsuru Sawada

Proceedings of 10th Copper International Conference   2019.8

Selective Flotation on Chalcopyrite and Molybdenite with Various Redox Reactions Reviewed International journal

Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

Proceedings of The 15th Internatonal Symposium on East Asian Resources Recycling Technology   2019.8

Effect of Heating Treatment on Magnetic Properties Reviewed International journal

Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

Proceedings of 10th Copper International Conference   2019.8

Investigation of reagents for selective flotation on chalcopyrite and molybdenite

H. Miki, Tsuyoshi Hirajima, Y. Muta, G. P.W. Suyantara, K. Sasaki

29th International Mineral Processing Congress, IMPC 2018 IMPC 2018 - 29th International Mineral Processing Congress   1854 - 1861   2019.1

The use of Fenton's reagent on selective flotation of chalcopyrite and molybdenite

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

29th International Mineral Processing Congress, IMPC 2018 IMPC 2018 - 29th International Mineral Processing Congress   1862 - 1871   2019.1

Evaluation of Catalytic Effect of Activated Carbon on Enargite Bioleaching Reviewed International journal

Proceedings of International Symposium on Earth Science and Technology 2018   2018.11

Carbon-assisted bioleaching of chalcopyrite concentrate Reviewed International journal

Proceedings of International Symposium on Earth Science and Technology 2018   2018.11

Effect of Fenton-like oxidation reagent on hydrophobicity and floatability of chalcopyrite and molybdenite Reviewed

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi

Colloids and Surfaces A: Physicochemical and Engineering Aspects   554   34 - 48   2018.10

Investigation of reagents for selective flotation on chalcopyrite and molybdenite Reviewed International journal

Proceedings of XXIV International Mineral Processing Congress (IMPC 2018)   2018.7

The use of Fenton’s reagent on selective flotation of chalcopyrite and molybdenite Reviewed International journal

Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Miki Hajime、Sasaki Keiko

2018.7

Selective flotation of chalcopyrite and molybdenite using H₂O₂ oxidation method with the addition of ferrous sulfate Reviewed

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi

Minerals Engineering   122   312 - 326   2018.6

Silver-catalyzed bioleaching of enargite concentrate using moderately thermophilic microorganisms Reviewed

Keishi Oyama, Kazuhiko Shimada, Junichiro Ishibashi, Hajime Miki, Naoko Okibe

Hydrometallurgy   177   197 - 204   2018.5

Microbiological Redox Potential Control to Improve the Efficiency of Chalcopyrite Bioleaching Reviewed

Yusei Masaki, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

Geomicrobiology Journal   35 ( 8 )   1 - 9   2018.4

Effect of sodium sulfite on floatability of chalcopyrite and molybdenite Reviewed

Hajime Miki, Tsuyoshi Hirajima, Yukihiro Muta, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

Minerals   8 ( 4 )   2018.4

Floatability of molybdenite and chalcopyrite in artificial seawater Reviewed

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

Minerals Engineering   115   117 - 130   2018.1

Mechanism of Silver-Catalyzed Bioleaching of Enargite Concentrate Invited Reviewed International journal

Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

Solid State Phenomena   262   273 - 276   2017.10

Development of alternative additive of NaHS for selective flotation of chalcopyrite and molybdenite Reviewed International journal

Tsuyoshi Hirajima, Hajime Miki, Yukihiro Muta, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

Proceedings of Flotation'17   2017.10

Study on the effect of a mixture of hydrogen peroxide and ferrous sulfate on the floatability of chalcopyrite and molybdenite Reviewed International journal

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

Proceedings of Flotation'17   2017.10

The anodic behaviour of chalcopyrite in chloride solutions Voltammetry Reviewed

Michael Nicol, Hajime Miki, Suchun Zhang

Hydrometallurgy   171   198 - 205   2017.8

Electrolysis Oxidation of Chalcopyrite and Molybdenite for Selective Flotation Reviewed

Hajime Miki, Hidekazu Matsuoka, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

Materials Transactions   58 ( 5 )   761 - 767   2017.3

Selective flotation of chalcopyrite and molybdenite with H₂O₂ oxidation Reviewed

Tsuyoshi Hirajima, Hajime Miki, Gde Pandhe Wisnu Suyantara, Hidekazu Matsuoka, Ahmed Mohamed Elmahdy, Keiko Sasaki, Yuji Imaizumi, Shigeto Kuroiwa

Minerals Engineering   100   83 - 92   2017.1

The development of fine microgram powder electrode system and its application in the analysis of chalcopyrite leaching behavior Reviewed

Hajime Miki, Tsuyoshi Hirajima, Kazunori Oka, Keiko Sasaki

Minerals   6 ( 4 )   2016.12

Three leading program joint field work Reviewed

Hajime Miki

Evergreen   3 ( 2 )   68 - 69   2016.12

The Effect of Microbiological Redox Potential Control on Cu Extraction in the Chalcopyrite Bioleaching System International journal

Yusei Masaki, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

Proc. of International Symposium on Earth Science and Technology 2016   2016.11

CHALCOPYRITE BIOLEACHING WITH REDOX POTENTIAL CONTROL Reviewed International journal

Yusei Masaki, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

Proceedings of Copper2016 International Conference   1724 - 1728   2016.11

SELECTIVE BIOLEACHING OF ENARGITE (Cu3AsS4) OVER PYRITE (FeS2) FOR COPPER RECOVERY Reviewed International journal

Keishi Oyama, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

Proceedings of Copper2016 International Conference   1719 - 1723   2016.11

APPLICATION OF OXIDATIVE TREATMENT ON SELECTIVE FLOTATION OF MOLYBDENITE AND CHALCOPYRITE Reviewed International journal

Tsuyoshi Hirajima, Hidekazu Matsuoka, Hajime Miki, Sasaki Keiko, Yuji Imaizumi

Proceedings of Copper2016 International Conference   182 - 193   2016.11

FLOATABILITY OF CHALCOPYRITE AND MOLYBDENITE IN MgCl2 SOLUTION Reviewed International journal

Tsuyoshi Hirajima, Osamu Ichikawa, Hajime Miki, Sasaki Keiko, Gde Pandhe Wisnu Swantara, Ahmed Mohammed Elmardy

Proceedings of Copper2016 International Conference   173 - 181   2016.11

BUBBLE COLLISION AND ATTACHMENT ON CHALCOPYRITE AND MOLYBDENITE SURFACES Reviewed International journal

Gde Pandhe Wisnu Swantara, Tsuyoshi Hirajima, Osamu Ichikawa, Hajime Miki, Sasaki Keiko, Ahmed Mohammed Elmardy

Proceedings of Copper2016 International Conference   162 - 172   2016.11

Microwave and Furnace Treatment of Sulfide Minerals International journal

Taigen Masuyama, Tsuyoshi Hirajima, Hajime Miki, Gde Pandhe Wisnu Swantara, Ahmed Mohammed Elmardy, Sasaki Keiko

Proc. of International Symposium on Earth Science and Technology 2016   2016.11

Investigating Catalytic Effect of Silver on Bioleaching of Enargite Concentrate International journal

Keishi Oyama, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

Proc. of International Symposium on Earth Science and Technology 2016   2016.11

Effect of Mg2+ and Ca2+ as divalent seawater cations on the floatability of molybdenite and chalcopyrite Invited Reviewed International journal

Hajime Miki, Tsuyoshi Hirajima

MINERALS ENGINEERING   96-97   83 - 93   2016.10

Effect of Kerosene on Bubble Interaction with Molybdenite and Chalcopyrite in MgCl2 Solution Reviewed International journal

Gde Pandhe Wisnu Swantara, Tsuyoshi Hirajima, Ahmed Mohammed Elmardy, Hajime Miki, Sasaki Keiko

Proceedings of IMPC 2016: XXVIII International Mineral Processing Congress   2016.9

Comparison of Selective Flotation of Chalcopyrite and Molybdenite with Various Oxidation Techniques Reviewed International journal

Tsuyoshi Hirajima, Hidekazu Matsuoka, Hajime Miki, Gde Pandhe Wisnu Swantara, Ahmed Mohammed Elmardy, Sasaki Keiko

Proceedings of IMPC 2016: XXVIII International Mineral Processing Congress   2016.9

Effect of kerosene emulsion in MgCl₂ solution on the kinetics of bubble interactions with molybdenite and chalcopyrite Reviewed

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Ahmed Mohamed Elmahdy, Hajime Miki, Keiko Sasaki

Colloids and Surfaces A: Physicochemical and Engineering Aspects   501   98 - 113   2016.7

Catalytic effect of silver on arsenic-containing copper sulfide dissolution in acidic solution Reviewed

Hajime Miki, Akinobu Iguchi, Tsuyoshi Hirajima, Keiko Sasaki

Hydrometallurgy   162   1 - 8   2016.6

Removal mechanism of high concentration borate by co-precipitation with hydroxyapatite Reviewed

Keiko Sasaki, Kenta Toshiyuki, Keiko Ideta, Hajime Miki, Tsuyoshi Hirajima, Jin Miyawaki, Mitsuhiro Murayama, Ismaila Dabo

Journal of Environmental Chemical Engineering   4 ( 1 )   1092 - 1101   2016.3

Removal mechanism of high concentration borate by co-precipitation with hydroxyapatite Invited Reviewed International journal

Hajime Miki, Sasaki Keiko, Tsuyoshi Hirajima

Journal of Environmental Chemical Engineering   4 ( 1 )   1092 - 1101   2016.1

Effect of kerosene on bubble interaction with molybdenite and chalcopyrite in MgCl₂ solution

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, A. M. Elmahdy, Hajime Miki, Keiko Sasaki

28th International Mineral Processing Congress, IMPC 2016 IMPC 2016 - 28th International Mineral Processing Congress   2016.1

Comparison of selective flotation of chalcopyrite and molybdenite with various oxidation techniques

Tsuyoshi Hirajima, Hidekazu Matsuoka, Hajime Miki, Gde Pandhe Wisnu Suyantara, Ahmed Mohamed Elmahdy, Keiko Sasaki

28th International Mineral Processing Congress, IMPC 2016 IMPC 2016 - 28th International Mineral Processing Congress   2016.1

Effect of Mg²⁺ and Ca²⁺ as divalent seawater cations on the floatability of molybdenite and chalcopyrite Reviewed

Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Osamu Ichikawa, Ahmed Mohamed Elmahdy, Hajime Miki, Keiko Sasaki

Minerals Engineering   96-97   83 - 93   2016.1

Suppression of pyrite oxidation in acid mine drainage by carrier microencapsulation using liquid product of hydrothermal treatment of low-rank coal, and electrochemical behavior of resultant encapsulating coatings Reviewed

Mutia Dewi Yuniati, Keitaro Kitagawa, Tsuyoshi Hirajima, Hajime Miki, Naoko Okibe, Keiko Sasaki

Hydrometallurgy   158   83 - 93   2015.12

Study of selective flotation of chalcopyrite and molybdenite with various oxidation techniques Reviewed International journal

Tsuyoshi Hirajima, Hidekazu Matsuoka, Hajime Miki, Ahmed Mohammed Elmardy, Sasaki Keiko

Proceedings of Flotation'15   2015.11

Selective bioleaching of enargite (Cu3AsS4) over pyrite (FeS2) for Cu recovery International journal

Keishi Oyama, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

Proc. of International Symposium on Earth Science and Technology 2015   191 - 192   2015.11

Bioleaching of Highly Refractory Chalcopyrite in The Presence of Silver Catalyst International journal

Yusei Masaki, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

Proc. of International Symposium on Earth Science and Technology 2015   189 - 190   2015.11

Various surface treatment of molybdenite and chalcopyrite International journal

Hajime Miki, Sasaki Keiko, Tsuyoshi Hirajima, Hidekazu Matsuoka

Proc. of International Symposium on Earth Science and Technology 2015   92 - 94   2015.11

Effect of silver addition in potential controlled solution on dissolution rate of enargite International journal

Akinobu Iguchi, Hajime Miki, Tsuyoshi Hirajima, Sasaki Keiko

Proc. of International Symposium on Earth Science and Technology 2015   85 - 97   2015.11

Seawater divalent cations (MgCl2 and CaCl2) effect on the flotation of molybdenite and chalcopyrite Reviewed International journal

Tsuyoshi Hirajima, Osamu Ichikawa, Gde Pandhe Wisnu Suyantara, Hajime Miki, Sasaki Keiko

Proceedings of Flotation'15   2015.11

Silicate covering layer on pyrite surface in the presence of siliconcatechol complex for acid mine drainage prevention Reviewed

Mutia Dewi Yuniati, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

Materials Transactions   56 ( 10 )   1733 - 1741   2015.10

Silica Covering Layer on the Chalcopyrite Surface: Electrochemical Behaviors and Depression Effect on Copper-Molybdenum Flotation Reviewed International journal

Mutia Dewi Yuniati, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

Proceedings of International Symposium on Earth Science and Technology 2014   108 - 111   2014.12

The Effect of Solution Potential and Silver Ion Addition on Dissolution Rate of Enargite Reviewed International journal

Akinobu Iguchi, Hajime Miki, Tsuyoshi Hirajima, Keiko Sasaki, Mitsuru Sawada

Proceedings of International Symposium on Earth Science and Technology 2014   322 - 323   2014.12

Electrochemical Treatment of Molybdenite and Chalcopyrite Reviewed International journal

Hidekazu Matsuoka, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Proceedings of International Symposium on Earth Science and Technology 2014   320 - 321   2014.12

Selective Flotation of Chalcopyrite and Molybdenite by surface oxidation Reviewed International journal

Tsuyoshi Hirajima, Masanori Mori, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Proceedings of International Mineral Processing Congress (IMPC2014)   202 - 212   2014.11

Selective flotation of chalcopyrite and molybdenite with plasma pre-treatment Reviewed International journal

Hajime Miki, Sasaki Keiko, Tsuyoshi Hirajima, Osamu Ichikawa, Masanori Mori

MINERALS ENGINEERING   66-68   102 - 111   2014.11

Suppression of pyrite and arsenopyrite oxidation by silica coating: Electrochemical aspects and the mechanism Reviewed International journal

Hajime Miki, Tsuyoshi Hirajima, Mutia Dewi Yuniati, Keiko Sasaki

Proceedings of International Mineral Processing Congress (IMPC2014)   101 - 110   2014.11

Recovery of Furfural Produced by Hydrothermal Treatment with Biomass Charcoal Reviewed International journal

Hisaya Tsuji, Pilasinee Limsuwan, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Satoshi Kumagai

International Journal of Environment   4 ( 1 )   11 - 17   2014.6

Silica and sodium chloride assisted leaching of chalcopyrite Reviewed International journal

Hajime Miki, Gamni Senanayake, Sophie Wheatley

Proceeding of Hydrometallurgy 2014   1   211 - 224   2014.6

XPS and AFM Analysis of Plasma Oxidized Chalcopyrite and Molybdenite for New Selective Flotation Technique International journal

Osamu Ichikawa, Tsuyoshi Hirajima, Masanori Mori, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Proceedings of International Conference on Biological, Civil and Environmental Engineering (BCEE-2014)   2014.3

Selective flotation of chalcopyrite and molybdenite with plasma pre-treatment Reviewed

Tsuyoshi Hirajima, Masanori Mori, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mohsen Farahat, Mitsuru Sawada

Minerals Engineering   66   102 - 111   2014.1

Electrochemical Study of Silicate Coating on Sulphide Minerals Oxidation Suppression Reviewed International journal

Mutia Dewi Yuniati, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

Proceedings of International Symposium on Earth Science and Technology 2013   193 - 196   2013.12

Surfaces Characterization of Plasma Treated Chalcopyrite and Molybdenite Reviewed International journal

Osamu Ichikawa, Tsuyoshi Hirajima, Masanori Mori, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Proceedings of International Symposium on Earth Science and Technology 2013   376 - 379   2013.12

Floatability Modification of Chalcopyrite and Molybdenite with Plasma Treatment Reviewed International journal

Masanori Mori, Tsuyoshi Hirajima, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Proceedings of International Symposium on Earth Science and Technology 2013   372 - 375   2013.12

Selective Flotation of Chalcopyrite and Molybdenite with Plasma Pre-treatment Reviewed International journal

Tsuyoshi Hirajima, Masanori Mori, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Proceedings of Flotation '13   2013.11

Hydrothermal Treatment of Coconut Shell and Recovery of Furfural Reviewed International journal

Hisaya Tsuji, Satoshi Kumagai, Pilasnee Limsuwan, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki

Proceedings of International Conference on Green Energy and Technology   172 - 175   2013.8

The effects of sulphate ions and temperature on the leaching of pyrite. 2. Dissolution rates Reviewed

Michael Nicol, Hajime Miki, Petrus Basson

Hydrometallurgy   133   182 - 187   2013.2

The effects of sulphate ions and temperature on the leaching of pyrite. 1. Electrochemistry Reviewed

Michael J. Nicol, Hajime Miki, Suchun Zhang, Petrus Basson

Hydrometallurgy   133   188 - 196   2013.1

The Development of Heap Leaching Based on Chloride for Primary and Secondary Copper Minerals Reviewed International journal

Michael James Nicol, Hajime Miki, Derick Rautenbach, Lilian Velasquez, C Buuren

Proceedings of Percolation Leaching: The status globally and in Southern Africa 2011   5   2011.6

The dissolution of chalcopyrite in chloride solutions. IV. the kinetics of the auto-oxidation of copper(I) Reviewed

Hajime Miki, Michael Nicol

Hydrometallurgy   105 ( 3-4 )   246 - 250   2011.1

The kinetics of dissolution of synthetic covellite, chalcocite and digenite in dilute chloride solutions at ambient temperatures Reviewed

Hydrometallurgy   105 ( 3-4 )   321 - 327   2011.1

Enhanced Leaching of Chalcopyrite at Low Potentials in Chloride Solutions. 2. Mechanism Reviewed International journal

Petrus Basson, Hajime Miki, Michael James Nicol, Lilian Velasquez

Proceedings of 7th Copper2010 International Conference   5   1753 - 1770   2010.6

The dissolution of chalcopyrite in chloride solutions Part 3. Mechanisms Reviewed

Hydrometallurgy   103 ( 1-4 )   86 - 95   2010.6

The dissolution of chalcopyrite in chloride solutions Part 2: Effect of various parameters on the rate Reviewed

Hydrometallurgy   103 ( 1-4 )   80 - 85   2010.6

The dissolution of chalcopyrite in chloride solutions Part 1. the effect of solution potential Reviewed

Hydrometallurgy   103 ( 1-4 )   108 - 113   2010.6

Enhanced Leaching of Chalcopyrite at Low Potentials in Chloride Solutions. 1. Concentrates Reviewed International journal

Petrus Basson, Hajime Miki, Michael James Nicol, Lilian Velasquez

Proceedings of 7th Copper2010 International Conference   5   1737 - 1752   2010.6

The kinetics of the oxidation of iron(II) by chlorate in the leaching of uranium ores Reviewed

Hajime Miki, Michael Nicol

Hydrometallurgy   100 ( 1-2 )   47 - 49   2009.1

Effects of coexisting metal ions on the redox potential dependence of chalcopyrite leaching in sulfuric acid solutions Reviewed

N. Hiroyoshi, S. Kuroiwa, Hajime Miki, M. Tsunekawa, Tsuyoshi Hirajima

Hydrometallurgy   87 ( 1-2 )   1 - 10   2007.6

Applications of the Electrochemistry of Fine Mineral Sulfides Reviewed International journal

Michael James Nicol, Hajime Miki

Innovations in Natural Resource Processing, Proceedings of the Jan D. Miller Symposium   1   179 - 192   2005.2

Synergistic effect of cupric and ferrous ions on active-passive behavior in anodic dissolution of chalcopyrite in sulfuric acid solutions Reviewed

Naoki Hiroyoshi, Shigeto Kuroiwa, Hajime Miki, Masami Tsunekawa, Tsuyoshi Hirajima

Hydrometallurgy   74 ( 1-2 )   103 - 116   2004.8

A new reaction model for the catalytic effect of silver ions on chalcopyrite leaching in sulfuric acid solutions Reviewed

Naoki Hiroyoshi, Masatoshi Arai, Hajime Miki, Masami Tsunekawa, Tsuyoshi Hirajima

Hydrometallurgy   63 ( 3 )   257 - 267   2002.3

Enhancement of chalcopyrite leaching by ferrous ions in acidic ferric sulfate solutions Reviewed

Naoki Hiroyoshi, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Hydrometallurgy   60 ( 3 )   185 - 197   2001.5

Model for ferrous-promoted chalcopyrite leaching Reviewed

Naoki Hiroyoshi, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Hydrometallurgy   57 ( 1 )   31 - 38   2000.1

Ferrous Promoted Chalcopyrite Leaching Reviewed International journal

Naoki Hiroyoshi, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Proceedings of 4th Copper1999-Cobre1999 International Conference   4   231 - 243   1999.10

Effect of Several Inhibitors to Thiobacillus ferrooxidans on Ferrous Promoted Chalcopyrite Leaching Reviewed

Naoki Hiroyoshi, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Journal of MMIJ   115   172 - 176   1999.3

Ferrous Promoted Chalcopyrite Leaching -Ferric Formation and its Effects on the Leaching- Reviewed

Naoki Hiroyoshi, Hideto Maeda, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Journal of MMIJ   114 ( 11 )   795 - 800   1998.10

Suppression of Pyrite and Arsenopyrite Oxidation by Silica Coating: Electrochemical aspects and the mechanism International conference

Hajime MIKI, Tsuyoshi HIRAJIMA, Mutia Dewi YUNIATI, Keiko SASAKI

XXVII International Mineral Processing Congress (IMPC 2014)  2014.10 

含砒素硫化銅鉱物の硫酸浸出に対する銀および溶液電位調整の影響

井口明信, 三木一, 平島剛, 笹木圭子, 澤田満

資源・素材学会 春季大会  2015.3 

硫酸酸性溶液中における含砒素銅鉱物浸出の電位依存性

三木 一, 井口 明信, 平島 剛, 笹木 圭子, 澤田 満

資源・素材学会 春季大会  2014.3 

Study of Silicate Coating on Pyrite Oxidation Suppression: Fundamental Mechanism and Kinetic Analysis International conference

Hajime Miki, Tsuyoshi Hirajima, Mutia Dewi Yuniati, Keiko Sasaki

International Symposium on Earth Science and Technology 2013  2013.12 

Suppression of Pyrite Oxidation by Silicate Coating with Catechol Complex Oxidation – Kinetics Estimation with Electrochemistry International conference

2013.11 

オーストラリアにおける鉱物資源開発の現状

三木 一

資源・素材学会 九州支部 春季例会  2013.5 

沈降シリカによる黄銅鉱浸出の触媒作用の研究

三木 一, Gamini Senanayake

資源・素材学会 春季大会  2013.3 

Applications of the electrochemistry of fine mineral sulfides International conference

Michael James Nicol, Hajime Miki

Innovations in Natural Resource Processing  2005.2 

Mechanisms of Catalytic Leaching of Chalcopyrite International conference

Hajime Miki, Naoki Hiroyoshi, Shigeto Kuroiwa, Masami Tsunekawa, Tsuyoshi Hirajima

Copper2003 International Conference  2003.9 

硫酸溶液中での黄銅鉱のサイクリックボルタモグラムに及ぼす各種金属イオンの影響 －黄銅鉱浸出の電位依存性に関する研究(第2報)－

三木 一, 広吉直樹, 平島剛, 恒川昌美

資源素材学会 2001年春季大会  2001.3 

Fe(Ⅱ)による黄銅鉱浸出促進に関する研究(第4報) －Cu(Ⅱ)添加と電位調節の効果－

三木 一, 広吉直樹, 平島剛, 恒川昌美

資源素材学会2000年春季大会  2000.3 

Fe(Ⅱ)による黄銅鉱浸出促進に関する研究(第1報)－Fe(Ⅲ)による黄銅鉱酸化に及ぼすFe(Ⅱ)の影響と銅の重要性

広吉直樹, 三木 一, 平島剛, 恒川昌美

資源素材学会1999年春季大会  1999.3 

Fe(Ⅱ)イオンによる黄銅鉱酸化浸出の促進

三木 一, 広吉直樹, 恒川昌美, 平島剛

資源素材学会 北海道支部春季講演会  1997.6 

九州大学における銅原料中からのヒ素低減技術開発の取り組み

三木 一、Suyantara Gde Pandhe Wisnu、平島 剛、沖部 奈緒子、笹木 圭子、青木 悠二、忰山 卓矢

資源・素材2021年度 春季大会  2021.3 

海水でのCu-Mo選択浮遊選別法の開発

瀬元 祐希、スヤンタラ グディパンディウィスヌ、三木 一、笹木 圭子、平島 剛、青木 悠二、田中 善之

資源・素材2021年度 春季大会  2021.3 

The study of selective flotation separation of copper-molybdenite with seawater International conference

International Symposium on Earth Science and Technology 2020  2020.11 

Effect of a sulfite reagent on floatability of chalcopyrite and enargite International conference

IMPC 2020:XXX International Mineral Processing Congress  2020.10 

Selective flotation for removal of impurities on copper concentrates with various redox reactions International conference

IMPC 2020:XXX International Mineral Processing Congress  2020.10 

Effect of seawater and process water on copper-molybdenum rougher flotation in batch and pilot test International conference

IMPC 2020:XXX International Mineral Processing Congress  2020.10 

海水下での黄銅鉱･輝水鉛鉱選択的浮遊選別に関する研究

瀬元祐希、Gde Pandhe Wisnu Suyantara、三木 一、笹木 圭子、平島剛、青木 悠二

一般社団法人資源・素材学会　2020年度　九州支部会  2020.5 

海水を用いたCu-Mo選択浮遊選別に関する研究

瀬元 祐希、Gde Pandhe Wisnu Suyantara、三木 一、平島 剛、青木 悠二、 黒岩 樹人、田中 善之

資源・素材学会春季大会  2020.3 

含ヒ素硫化銅鉱物と非含ヒ素硫化銅鉱物の浮選分離に及ぼす捕収剤の影響

折居優太、Gde Pandhe Wisnu Suyantara、三木一、笹木圭子、 平島剛、黒岩樹人、青木悠二、山根正嗣

資源・素材学会春季大会  2020.3 

Study of selective flotation of copper sulfide and As containing copper minerals International conference

Yuta Orii, Gde Pandhe Wisnu Suyantara, Hajime Miki, Keiko Sasaki, Tsuyoshi Hirajima, Shigeto Kuroiwa, Yuji Aoki

International Symposium on Earth Science and Technology 2019  2019.11 

Effect of hydrogen peroxide on the separation of copper sulfide minerals and arsenic-bearing copper minerals using flotation International conference

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki

Flotation'19 International Conference  2019.10 

Effect of seawater on bubble interactions with chalcopyrite and molybdenite surfaces International conference

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Shigeto Kuroiwa, Yuji Aoki

Flotation'19 International Conference  2019.10 

Selective Flotation on Chalcopyrite and Molybdenite with Various Redox Reactions International conference

Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

The 15th Internatonal Symposium on East Asian Resources Recycling Technology  2019.9 

亜硫酸ナトリウム添加による硫化銅鉱物と含ヒ素銅鉱物の浮選分離に関する研究

折居優太、Gde Pandhe Wisnu Suyantara、三木一、笹木圭子、平島剛、黒岩樹人、青木悠二

資源・素材学会秋季大会  2019.9 

Separation of molybdenite and chalcopyrite using various oxidation treatments International conference

Gde Pandhe Wisnu Suyantara, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki, Masashi Yamane, Eri Takida, Shigeto Kuroiwa, Yuji Imaizumi, Mitsuru Sawada

10th Copper International Conference  2019.8 

Effect of Heating Treatment on Magnetic Properties International conference

Hajime Miki, Tsuyoshi Hirajima, Gde Pandhe Wisnu Suyantara, Keiko Sasaki

10th Copper International Conference  2019.8 

亜硫酸ナトリウム添加による斑銅鉱とヒ四面銅鉱の浮選分離に関する研究

折居優太、Gde Pandhe Wisnu Suyantara、三木一、笹木圭子、平島剛

資源・素材学会九州支部会  2019.5 

Evaluation of Catalytic Effect of Activated Carbon on Enargite Bioleaching International conference

International Symposium on Earth Science and Technology 2018, Fukuoka, Japan  2018.11 

Carbon-assisted bioleaching of chalcopyrite concentrate International conference

International Symposium on Earth Science and Technology 2018, Fukuoka, Japan  2018.11 

硫砒銅鉱バイオリーチングにおける活性炭触媒の影響

小山 恵史、 三木 一、 笹木 圭子、 沖部 奈緒子

資源・素材学会秋季大会  2018.9 

Investigation of reagents for selective flotation on chalcopyrite and molybdenite International conference

XXIV International Mineral Processing Congress (IMPC 2018), Moscow, Russia  2018.8 

The use of Fenton’s reagent on selective flotation of chalcopyrite and molybdenite International conference

Suyantara Gde Pandhe Wisnu、Hirajima Tsuyoshi、Miki Hajime、Sasaki Keiko

2018.8 

Effect of Seawater on Selective Flotation of Chalcopyrite and Molybdenite International conference

Gde Pandhe Wisnu SUYANTARA, Tsuyoshi HIRAJIMA, Hajime MIKI, Keiko SASAKI

International Symposium on Earth Science and Technology 2017 (CINEST)  2017.12 

電気化学的表面処理を行った黄銅鉱と輝水鉛鉱の浮選分離

松岡秀和, 平島剛, 笹木圭子, 三木一, 市川修, 澤田満

資源・素材学会 九州支部会  2014.5 

初期溶液電位調整による含砒素硫化銅鉱物の硫酸浸出挙動

井口明信 三木一 平島剛 笹木圭子 澤田満

資源・素材学会 九州支部会  2014.5 

新型微量粉末電極を用いた黄銅鉱浸出挙動の解析

三木一, 平島剛, 岡和儀, 笹木圭子

資源・素材学会 秋季大会  2014.9 

シリカコーティングによる黄鉄鉱の酸化抑制の検証に関する電気化学インピーダンス法の有用性

Yuniati Mutia Dewi, 平島剛, 三木一, 笹木圭子

資源・素材学会 秋季大会  2014.9 

Selective Flotation of Chalcopyrite and Molybdenite by Surface Oxidation International conference

Tsuyoshi HIRAJIMA, Masanori MORI, Osamu ICHIKAWA, Keiko SASAKI, Hajime MIKI, Mitsuru SAWADA

XXVII International Mineral Processing Congress (IMPC 2014)  2014.10 

The Effect of Solution Potential and Silver Ion Addition on Dissolution Rate of Enargite International conference

Akinobu IGUCHI, Hajime MIKI, Tsuyoshi HIRAJIMA, Keiko SASAKI, Mitsuru SAWADA

International Symposium on Earth Science and Technology 2014 (CINEST)  2014.12 

Silica Covering Layer on the Chalcopyrite Surface: Electrochemical Behaviors and Depression Effect on Copper-Molybdenum Flotation International conference

Mutia Dewi YUNIATI, Tsuyoshi HIRAJIMA, Hajime MIKI, Keiko SASAKI

International Symposium on Earth Science and Technology 2014 (CINEST)  2014.12 

Electrochemical Treatment of Molybdenite and Chalcopyrite International conference

Hidekazu MATSUOKA, Tsuyoshi HIRAJIMA, Keiko SASAKI, Hajime MIKI, Mitsuru SAWADA

International Symposium on Earth Science and Technology 2014 (CINEST)  2014.12 

Seawater Divalent Cations (MgCl2 and CaCl2) Effect on the Flotation of Molybdenite and Chalcopyrite International conference

Tsuyoshi Hirajima, Osamu ICHIKAWA, G.P.W. SUYANTARA, Hajime Miki, Sasaki Keiko, Ahmed Mohamed Elmahdy Ahmed MOHAMED

2015.11 

Study of Selective Flotation of Chalcopyrite and Molybdenite with Various Oxidation International conference

Tsuyoshi Hirajima, Hidekazu MATSUOKA, Hajime Miki, Ahmed Mohamed Elmahdy Ahmed MOHAMED, Sasaki Keiko

2015.11 

Bioleaching of Highly Refractory Chalcopyrite in The Presence of Silver Catalyst International conference

Yusei MASAKI, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

International Symposium on Earth Science and Technology 2015 (CINEST)  2015.12 

Selective Bioleaching of Enargite (Cu3AsS4) over Pyrite (FeS2) for Cu Recovery International conference

Keishi OYAMA, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki, Naoko Okibe

International Symposium on Earth Science and Technology 2015 (CINEST)  2015.12 

Effect of Silver Addition in Potential Controlled Solution on Dissolution Rate of Enargite International conference

Akinobu IGUCHI, Hajime Miki, Tsuyoshi Hirajima, Sasaki Keiko

International Symposium on Earth Science and Technology 2015 (CINEST)  2015.12 

Various Surface Treatment Techniques of Molybdenite and Chalcopyrite International conference

Hidekazu MATSUOKA, Tsuyoshi Hirajima, Sasaki Keiko, Hajime Miki

International Symposium on Earth Science and Technology 2015 (CINEST)  2015.12 

Effect of Kerosene on Bubble Interaction with Molybdenite and Chalcopyrite in MgCl2 Solution International conference

Gde Pandhe Wisnu SUYANTARA, Tsuyoshi HIRAJIMA, A. M. ELMAHDY, Hajime MIKI, Keiko SASAKI

XXVIII International Mineral Processing Congress (IMPC 2016)  2016.10 

Comparison of Selective Flotation of Chalcopyrite and Molybdenite with Various Oxidation Techniques International conference

Tsuyoshi HIRAJIMA, Hidekazu MATSUOKA, Hajime MIKI, Gde Pandhe Wisnu SUYANTARA, Ahmed Mohamed ELMAHDY, Keiko SASAKI

XXVIII International Mineral Processing Congress (IMPC 2016)  2016.10 

Oxidation of Chalcopyrite and Molybdenite with Hydrogen Peroxide and its Application to Their Separation International conference

Tsuyoshi HIRAJIMA, Hajime MIKI, G.P.W. SUYANTARA, Hidekazu MATSUOKA, Keiko SASAKI

Fifth International conference on Multifunctional, Hybrid and Nanomaterials  2017.3 

Mechanism of Silver－Catalyzed Bioleaching of Enargite Concentrate International conference

2017.9 

Development of Alternative Additive of NaHS for Selective Flotation of Chalcopyrite and Molybdenite International conference

Tsuyoshi HIRAJIMA, Hajime MIKI, Y. MUTA, G.P.W. SUYANTARA, Keiko SASAKI

2017.11 

Study on the Effect of a Mixture of Hydrogen Peroxide and Ferrous Sulfate on the Floatability of Chalcopyrite and Molybdenite International conference

G.P.W. SUYANTARA, Tsuyoshi HIRAJIMA, Hajime MIKI, Keiko SASAKI

2017.11 

Catalytic Effect of Activated Carbon on Bioleaching of Enargite Concentrate International conference

Keishi Oyama, Haruki NOGUCHI, Tsuyoshi HIRAJIMA, Keiko SASAKI, Hajime MIKI, Naoko OKIBE

International Symposium on Earth Science and Technology 2017 (CINEST)  2017.12 

Mechanism of silver-catalyzed bioleaching of enargite concentrate

Keishi Oyama, Tsuyoshi Hirajima, Keiko Sasaki, Hajime Miki, Naoko Okibe

22nd International Biohydrometallurgy Symposium, 2017  2017.1 

Selective flotation of chalcopyrite and molybdenite by surface oxidation

Tsuyoshi Hirajima, Masanori Mori, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

27th International Mineral Processing Congress, IMPC 2014 

硫砒銅鉱のバイオリーチングにおける銀触媒の影響

小山恵史, 平島 剛, 笹木 圭子, 三木 一, 沖部 奈緒子

資源・素材学会 春季大会  2016.3 

シリカコーティングによる硫化鉱の酸化挙動

Mutia Dewi Yuniati, 平島 剛, 三木 一, 笹木 圭子

資源・素材学会 春季大会  2014.3 

黄銅鉱と輝水鉛鉱の浮選分離に関する研究

市川 修, 平島 剛, 森 優典, 笹木 圭子, 三木 一, 澤田 満

資源・素材学会 春季大会  2014.3 

黄銅鉱と輝水鉛鉱の電気化学的表面処理に関する研究

松岡秀和, 平島剛, 笹木圭子, 三木一, 澤田満

資源・素材学会 春季大会  2015.3 

表面酸化による難処理硫化鉱の分離に関する研究

平島 剛, 三木 一, 松岡秀和, Suyantara G.P.W., Elmahdy A. M., 笹木 圭子

資源・素材学会 春季大会  2016.3 

XPS and AFM Analysis of Plasma Oxidized Chalcopyrite and Molybdenite for New Selective Flotation Technique International conference

Osamu Ichikawa, Tsuyoshi Hirajima, Masanori Mori, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

International Conference on Biological, Civil and Environmental Engineering (BCEE-2014)  2014.3 

Floatability Modification of Chalcopyrite and Molybdenite with Plasma Treatment International conference

Masanori Mori, Tsuyoshi Hirajima, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

International Symposium on Earth Science and Technology 2013  2013.12 

Electrochemical Study of Silicate Coating on Sulphide Minerals Oxidation International conference

Mutia Dewi Yuniati, Tsuyoshi Hirajima, Hajime Miki, Keiko Sasaki

International Symposium on Earth Science and Technology 2013  2013.12 

Surfaces Characterization of Plasma Treated Chalcopyrite and Molybdenite International conference

Osamu Ichikawa, Tsuyoshi Hirajima, Masanori Mori, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

International Symposium on Earth Science and Technology 2013  2013.12 

Selective flotation of chalcopyrite and molybdenite with plasma pre-treatment International conference

Tsuyoshi Hirajima, Masanori Mori, Osamu Ichikawa, Keiko Sasaki, Hajime Miki, Mitsuru Sawada

Flotation '13  2013.11 

酸化処理による黄銅鉱と輝水鉛鉱の浮選分離に関する研究

森優典, 市川修, 平島 剛, 笹木 圭子, 三木 一, 澤田満

資源・素材学会　秋季大会  2013.9 

プラズマ酸化処理による黄銅鉱と輝水鉛鉱の表面性状変化

市川修, 森優典, 平島 剛, 笹木 圭子, 三木 一, 澤田満

資源・素材学会　秋季大会  2013.9 

Hydrothermal Treatment of Coconut Shell and Recovery of Furfural International conference

International Conference on Green Energy and Technologies (ICGET)  2013.8 

浮遊選別による黄銅鉱と輝水鉛鉱の分離に関する研究

市川修, 森優典, 平島 剛, 笹木 圭子, 三木 一, 澤田満

資源・素材学会 九州支部 春季例会  2013.5 

硫化鉱物浮選に関する研究

森優典, 市川修, 平島 剛, 笹木 圭子, 三木 一, 澤田満

資源・素材学会 春季大会  2013.3 

The Development of Heap Leaching Based on Chloride for Primary and Secondary Copper Minerals International conference

Michael James Nicol, Hajime Miki, Derick Rautenbach, Craig van Buuren, Norma Hoyos, Lilian Velasquez

Hydroprocess2012  2012.7 

The Development of Heap Leaching Based on Chloride for Primary and Secondary Copper Minerals International conference

Hajime Miki, Michael James Nicol, Rautenbach Derick, Lilian Velasquez, Craig van Buuren

Percolation Leaching: The status globally and in Southern Africa 2011  2011.11 

Enhanced Leaching of Chalcopyrite at Low Potentials in Chloride Solutions. 1. Concentrates International conference

Petrus Basson, Hajime Miki, Michael James Nicol, Lilian Velasquez

Copper2010 International Conference  2010.6 

Enhanced Leaching of Chalcopyrite at Low Potentials in Chloride Solutions. 1. Mechanisms International conference

Petrus Basson, Hajime Miki, Michael James Nicol, Lilian Velasquez

Copper2010 International Conference  2010.6 

Synergism in the oxidation of covellite and pyrite by iron(III) and copper(II) ions in chloride solutions

Hajime Miki, Michael Nicol

Hydrometallurgy 2008: 6th International Symposium 

The kinetics of the copper-catalysed oxidation of iron(II) in chloride solutions

Hajime Miki, Michael Nicol

Hydrometallurgy 2008: 6th International Symposium 

The Kinetics of the Copper-catalysed Oxidation of Iron(II) in Chloride Solutions International conference

Hajime Miki, Michael James Nicol

Hydrometallurgy 2008  2008.8 

Synergism in the oxidation of covellite and pyrite in chloride solutions containing iron(III) and copper(II) International conference

Hajime Miki, Michael James Nicol

Hydrometallurgy 2008  2008.8 

Applications of the electrochemistry of fine mineral sulfides

Michael J. Nicol, Hajime Miki

Proceedings of the Jan D. Miller Symposium - Innovations in Natural Resource Processing 

黄銅鉱浸出の臨界電位に及ぼす各種金属イオンの影響 －黄銅鉱浸出の電位依存性に関する研究(第1報)－

広吉直樹, 黒岩樹人, 三木 一, 平島剛, 恒川昌美

資源素材学会 2001年春季大会  2001.3 

硫酸溶液中における黄銅鉱浸出の溶液電位依存性とAg(Ⅰ)の触媒作用

広吉直樹, 荒井政俊, 三木 一, 平島剛, 恒川昌美

資源素材学会 2000年春季大会  2000.3 

Ferrous promoted chalcopyrite leaching

Naoki Hiroyoshi, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Fourth International Conference COPPER 99 - COBRE 99 

Ferrous Promoted Chalcopyrite Leaching International conference

Naoki Hiroyoshi, Hajime Miki, Tsuyoshi Hirajima, Masami Tsunekawa

Copper1999 International Conference  1999.9 

鉄(Ⅱ)イオンを促進剤とする黄銅鉱酸素酸化浸出の過程における鉄(Ⅲ)イオンの生成

広吉直樹, 三木 一, 前田英人, 恒川昌美, 平島剛

資源素材学会1998年春季大会  1999.3 

Fe(Ⅱ)による黄銅鉱浸出促進に関する研究(第3報) －浸出促進を説明する反応モデルとその熱力学的成立条件－

広吉直樹, 三木 一, 平島剛, 恒川昌美

資源素材学会1999年春季大会  1999.3 

Fe(Ⅱ)による黄銅鉱浸出促進に関する研究(第2報)－Fe(Ⅱ)－Cu(Ⅱ)混合溶液で前処理した黄銅鉱電極のアノード分極特性－

広吉直樹, 荒井政俊, 三木 一, 平島剛, 恒川昌美

資源素材学会1999年春季大会  1999.3 

Screening of academic papers

Role(s)： Peer review

2016

その他

資源素材学会 春季大会  （ 東京 東京大学 生産技術研究所 Japan ） 2014.3

Screening of academic papers

Role(s)： Peer review

2014

Other International contribution

International Symposium on Earth Science and Technology 2013  （ Kyushu University, Fukuoka Japan Japan ） 2013.12

Other International contribution

The 12th International Symposium on East Asian Resources Recycling Technology  （ Zhangjiajie, China Japan Japan ） 2013.11

その他

資源素材学会 秋季大会  （ 札幌 北海道大学 Japan ） 2013.9

CuMo分離浮選、CuAs分離浮選に関する研究

2020.4 - 2023.3

共同研究

Cu-Mo分離浮選に関する研究

2020.4 - 2021.3

住友金属鉱山株式会社 

グラファイト質金鉱石のバイオハイドロメタラジーの学理

Grant number：19KK0135  2019 - 2023

日本学術振興会  科学研究費助成事業  国際共同研究強化(B)

笹木 圭子, 三木 一, 金田 隆, GUO BINGLIN, KONADU KOJO・TWUM, Suyantara Gde・Pandhe・Wisnu

海水を利用した浮遊選別法によるヒ素含有難処理硫化銅鉱からの銅・モリブデン分離回収

Grant number：19H02659  2019 - 2021

日本学術振興会  科学研究費助成事業  基盤研究(B)

三木 一, 笹木 圭子

アドバンストハイドロメタラジーのための超微量粉末電気化学の確立

Grant number：19K22156  2019 - 2020

日本学術振興会  科学研究費助成事業  挑戦的研究（萌芽）

ＡＥを用いた乾鉱挙動の計測技術の確立

2018.4 - 2019.3

共同研究

銅原料中の不純物低減技術開発事業

2017.11 - 2022.3

受託研究

銅原料中の不純物低減技術開発

2017.10 - 2021.3

難処理鉱の乾式処理による銅と砒素ならびにモリブデンの最適分離プロセス開発

2016.4 - 2017.3

共同研究

難処理鉱の浮選によるモリブデンと銅の最適分離技術開発

2016.4 - 2017.3

共同研究

放射性核種埋設に向けたジオミメティクスに由来する新規吸着材の開発

Grant number：16H02435  2016 - 2018

日本学術振興会  科学研究費助成事業  基盤研究(A)

超微量粉末電極を利用した新規電気化学システムのミネラルプロセッシングへの応用

Grant number：16K06929  2016 - 2018

日本学術振興会  科学研究費助成事業  基盤研究(C)

高ヒ素含有銅鉱石ミネラルプロセシングのイノベーション

Grant number：15H02333  2015 - 2017

日本学術振興会  科学研究費助成事業  基盤研究(A)

難処理鉱の選鉱技術に関する研究

2014.4 - 2016.3

共同研究

銅・砒素分離技術に関する研究

2014.4 - 2015.3

共同研究

銅精鉱の品質向上に関する研究

2013.4 - 2018.3

住友金属鉱山（株） 

アンモニア溶液を利用した低品位銅鉱のヒープリーチングに関する研究

2011.9 - 2012.6

共同研究

塩化物溶液による黄銅鉱浸出における酸化還元電位調節の影響

2002.9 - 2011.6

共同研究

ジオミメティクスを活用した放射性核種の長期安定化への技術革新

Grant number：19H00883 

笹木 圭子, 出光 一哉, 三木 一, 赤松 寛文

国際人材交流セミナー

2022.4 - 2023.3   Full year

資源分離精製工学

2021.12 - 2022.2   Winter quarter

国際フィールド調査

2021.4 - 2022.3   Full year

国際人材交流セミナー

2021.4 - 2022.3   Full year

資源分離精製工学

2020.12 - 2021.2   Winter quarter

基幹物理学ⅠＢ演習

2020.10 - 2021.3   Second semester

資源処理工学

2020.10 - 2020.12   Fall quarter

国際フィールド調査

2020.4 - 2021.3   Full year

国際人材交流セミナー

2020.4 - 2021.3   Full year

資源分離精製工学

2019.12 - 2020.2   Winter quarter

基幹物理学ⅠＢ演習

2019.10 - 2020.3   Second semester

資源分離精製工学

2018.12 - 2019.2   Winter quarter

基幹物理学ⅠＢ演習

2018.10 - 2019.3   Second semester

資源処理工学

2018.10 - 2018.12   Fall quarter

地球システム工学インターンシップ

2018.4 - 2018.9   First semester

資源分離精製工学

2017.12 - 2018.2   Winter quarter

資源分離精製工学

2017.12 - 2018.2   Winter quarter

基幹物理学IB演習

2017.10 - 2018.3   Second semester

資源処理工学

2017.10 - 2018.3   Second semester

粉体工学

2017.10 - 2018.3   Second semester

基幹物理学ⅠB演習

2017.10 - 2018.3   Second semester

国際人材交流セミナー

2017.10 - 2017.12   Fall quarter

地球環境修復工学

2017.10 - 2017.12   Fall quarter