Frontier Education Center for Global Cooperation in Earth Resources Engineering

Research Output 1999 2019

2019

Investigation of reagents for selective flotation on chalcopyrite and molybdenite

Miki, H., Hirajima, T., Muta, Y., Suyantara, G. P. W. & Sasaki, K., Jan 1 2019, IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, p. 1854-1861 8 p. (IMPC 2018 - 29th International Mineral Processing Congress).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

molybdenite
Flotation
chalcopyrite
Copper Sulfate
Hydrogen Sulfide
1 Citation (Scopus)

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

Suyantara, G. P. W., Hirajima, T., Miki, H. & Sasaki, K., Jan 1 2019, IMPC 2018 - 29th International Mineral Processing Congress. Canadian Institute of Mining, Metallurgy and Petroleum, p. 1862-1871 10 p. (IMPC 2018 - 29th International Mineral Processing Congress).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

molybdenite
Flotation
chalcopyrite
conditioning
oxidation
2018
2 Citations (Scopus)

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

Suyantara, G. P. W., Hirajima, T., Miki, H., Sasaki, K., Yamane, M., Takida, E., Kuroiwa, S. & Imaizumi, Y., Oct 5 2018, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 554, p. 34-48 15 p.

Research output: Contribution to journalArticle

Hydrophobicity
hydrophobicity
reagents
Oxidation
oxidation
4 Citations (Scopus)

Effect of sodium sulfite on floatability of chalcopyrite and molybdenite

Miki, H., Hirajima, T., Muta, Y., Suyantara, G. P. W. & Sasaki, K., Apr 2018, In : Minerals. 8, 4, 172.

Research output: Contribution to journalArticle

molybdenite
sulfite
Flotation
chalcopyrite
Sodium
17 Citations (Scopus)

Floatability of molybdenite and chalcopyrite in artificial seawater

Suyantara, G. P. W., Hirajima, T., Miki, H. & Sasaki, K., Jan 1 2018, In : Minerals Engineering. 115, p. 117-130 14 p.

Research output: Contribution to journalArticle

molybdenite
chalcopyrite
Seawater
Flotation
seawater
5 Citations (Scopus)

Microbiological Redox Potential Control to Improve the Efficiency of Chalcopyrite Bioleaching

Masaki, Y., Hirajima, T., Sasaki, K., Miki, H. & Okibe, N., Sep 14 2018, In : Geomicrobiology Journal. 35, 8, p. 648-656 9 p.

Research output: Contribution to journalArticle

Bioleaching
redox potential
chalcopyrite
Oxidation-Reduction
solubilization
5 Citations (Scopus)

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

Suyantara, G. P. W., Hirajima, T., Miki, H., Sasaki, K., Yamane, M., Takida, E., Kuroiwa, S. & Imaizumi, Y., Jun 15 2018, In : Minerals Engineering. 122, p. 312-326 15 p.

Research output: Contribution to journalArticle

ferrous sulfate
molybdenite
Flotation
chalcopyrite
sulfate
4 Citations (Scopus)

Silver-catalyzed bioleaching of enargite concentrate using moderately thermophilic microorganisms

Oyama, K., Shimada, K., Ishibashi, J., Miki, H. & Okibe, N., May 1 2018, In : Hydrometallurgy. 177, p. 197-204 8 p.

Research output: Contribution to journalArticle

Bioleaching
Silver
Microorganisms
Dissolution
Arsenic
2017

Effect of hydrogen peroxide on separation of chalcopyrite and molybdenite using flotation

Wisnu Suyantara, G. P., Hirajima, T., Miki, H. & Sasaki, K., Jan 1 2017.

Research output: Contribution to conferencePaper

molybdenite
chalcopyrite
hydrogen peroxide
oxidation
atomic force microscopy
3 Citations (Scopus)

Electrolysis oxidation of chalcopyrite and molybdenite for selective flotation

Miki, H., Matsuoka, H., Hirajima, T., Suyantara, G. P. W. & Sasaki, K., Jan 1 2017, In : Materials Transactions. 58, 5, p. 761-767 7 p.

Research output: Contribution to journalArticle

flotation
electrolysis
Flotation
Electrolysis
Oxidation

Electrolysis Oxidation of Chalcopyrite and Molybdenite for Selective Flotation

Miki, H., Matsuoka, H., Hirajima, T., Suyantara, G. P. W. & Sasaki, K., 2017, In : Materials Transactions. 58, 5, p. 761-767 7 p.

Research output: Contribution to journalArticle

flotation
electrolysis
Flotation
Electrolysis
Oxidation
1 Citation (Scopus)

Mechanism of silver-catalyzed bioleaching of enargite concentrate

Oyama, K., Hirajima, T., Sasaki, K., Miki, H. & Okibe, N., Jan 1 2017, 22nd International Biohydrometallurgy Symposium. Sand, W., Rubberdt, K., Glombitza, F., Sand, W., Veliz, M. V., Willscher, S., Hedrich, S. & Schippers, A. (eds.). Trans Tech Publications Ltd, p. 273-276 4 p. (Solid State Phenomena; vol. 262 SSP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Bioleaching
Silver
silver
sulfides
Dissolution

Optimization of microbiological redox potential control in chalcopyrite bioleaching

Takamatsu, K., Hirajima, T., Sasaki, K., Miki, H. & Okibe, N., Jan 1 2017.

Research output: Contribution to conferencePaper

redox potential
chalcopyrite
dissolution
ion
acid
25 Citations (Scopus)

Selective flotation of chalcopyrite and molybdenite with H2O2 oxidation

Hirajima, T., Miki, H., Suyantara, G. P. W., Matsuoka, H., Elmahdy, A. M., Sasaki, K., Imaizumi, Y. & Kuroiwa, S., Jan 1 2017, In : Minerals Engineering. 100, p. 83-92 10 p.

Research output: Contribution to journalArticle

molybdenite
Flotation
chalcopyrite
oxidation
Oxidation
6 Citations (Scopus)

The anodic behaviour of chalcopyrite in chloride solutions: Voltammetry

Nicol, M., Miki, H. & Zhang, S., Aug 1 2017, In : Hydrometallurgy. 171, p. 198-205 8 p.

Research output: Contribution to journalArticle

Voltammetry
Chlorides
Dissolution
Polysulfides
Gibbs free energy
2016

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

Miki, H., Hirajima, T., Oka, K. & Sasaki, K., Dec 1 2016, In : Minerals. 6, 4, 103.

Research output: Contribution to journalArticle

chalcopyrite
Leaching
electrode
leaching
Sulfide minerals
2013
9 Citations (Scopus)

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

Nicol, M. J., Miki, H., Zhang, S. & Basson, P., Jan 1 2013, In : Hydrometallurgy. 133, p. 188-196 9 p.

Research output: Contribution to journalArticle

Pyrites
Electrochemistry
Leaching
Sulfates
Iron
9 Citations (Scopus)

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

Nicol, M., Miki, H. & Basson, P., Jan 1 2013, In : Hydrometallurgy. 133, p. 182-187 6 p.

Research output: Contribution to journalArticle

Pyrites
Leaching
Sulfates
Dissolution
Ions
2011
17 Citations (Scopus)

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

Miki, H. & Nicol, M., Jan 1 2011, In : Hydrometallurgy. 105, 3-4, p. 246-250 5 p.

Research output: Contribution to journalArticle

Chlorides
Copper
Dissolution
Oxidation
Kinetics
24 Citations (Scopus)

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

Miki, H., Nicol, M. & Velásquez-Yévenes, L., Jan 1 2011, In : Hydrometallurgy. 105, 3-4, p. 321-327 7 p.

Research output: Contribution to journalArticle

Chlorides
Dissolution
Kinetics
Copper
Leaching
2010
49 Citations (Scopus)

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

Velásquez-Yévenes, L., Nicol, M. & Miki, H., Jun 1 2010, In : Hydrometallurgy. 103, 1-4, p. 108-113 6 p.

Research output: Contribution to journalArticle

Chlorides
Dissolution
Dissolved oxygen
Copper
Mineralogy
36 Citations (Scopus)

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

Yévenes, L. V., Miki, H. & Nicol, M., Jun 1 2010, In : Hydrometallurgy. 103, 1-4, p. 80-85 6 p.

Research output: Contribution to journalArticle

Chlorides
Dissolution
Copper
Leaching
Ions
45 Citations (Scopus)

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

Nicol, M., Miki, H. & Velásquez-Yévenes, L., Jun 1 2010, In : Hydrometallurgy. 103, 1-4, p. 86-95 10 p.

Research output: Contribution to journalArticle

Chlorides
Dissolution
Copper
Ions
Dissolved oxygen
2009
6 Citations (Scopus)

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

Miki, H. & Nicol, M., Jan 1 2009, In : Hydrometallurgy. 100, 1-2, p. 47-49 3 p.

Research output: Contribution to journalArticle

Chlorates
Uranium
Ores
Leaching
Iron
2004
79 Citations (Scopus)

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

Hiroyoshi, N., Kuroiwa, S., Miki, H., Tsunekawa, M. & Hirajima, T., Aug 1 2004, In : Hydrometallurgy. 74, 1-2, p. 103-116 14 p.

Research output: Contribution to journalArticle

chalcopyrite
Sulfuric acid
sulfuric acid
Dissolution
dissolution
1999
2 Citations (Scopus)

Ferrous promoted chalcopyrite leaching

Hiroyoshi, N., Miki, H., Hirajima, T. & Tsunekawa, M., Dec 1 1999, 4th International Conference COPPER 99-COBRE 99. Young, S. K., Dreisinger, D. B., Hackl, R. P., Dixon, D. G., Young, S. K., Dreisinger, D. B., Hackl, R. P. & Dixon, D. G. (eds.). p. 231-246 16 p. (4th International Conference COPPER 99-COBRE 99; vol. 4).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Leaching
Ions
Oxidants
Dissolved oxygen
Sulfuric acid