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Research Output 1999 2019

  • 876 Citations
  • 15 h-Index
  • 32 Article
  • 9 Conference contribution
  • 3 Paper
  • 1 Comment/debate
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Article
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
19 Citations (Scopus)

Floatability of molybdenite and chalcopyrite in artificial seawater

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

Research output: Contribution to journalArticle

molybdenite
chalcopyrite
Seawater
Flotation
seawater
6 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
6 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. I., Miki, H. & Okibe, N., May 2018, In : Hydrometallurgy. 177, p. 197-204 8 p.

Research output: Contribution to journalArticle

Bioleaching
Silver
Microorganisms
Dissolution
Arsenic
2017
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
26 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 2017, In : Hydrometallurgy. 171, p. 198-205 8 p.

Research output: Contribution to journalArticle

Voltammetry
Chlorides
Dissolution
Polysulfides
Gibbs free energy
2016
4 Citations (Scopus)

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

Miki, H., Iguchi, A., Hirajima, T. & Sasaki, K., Jun 1 2016, In : Hydrometallurgy. 162, p. 1-8 8 p.

Research output: Contribution to journalArticle

Arsenic
Sulfides
Silver
Copper
Dissolution
22 Citations (Scopus)

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

Suyantara, G. P. W., Hirajima, T., Elmahdy, A. M., Miki, H. & Sasaki, K., Jul 20 2016, In : Colloids and Surfaces A: Physicochemical and Engineering Aspects. 501, p. 98-113 16 p.

Research output: Contribution to journalArticle

kerosene
Magnesium Chloride
Kerosene
Emulsions
Bubbles (in fluids)
36 Citations (Scopus)

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

Hirajima, T., Suyantara, G. P. W., Ichikawa, O., Elmahdy, A. M., Miki, H. & Sasaki, K., Jan 1 2016, In : Minerals Engineering. 96-97, p. 83-93 11 p.

Research output: Contribution to journalArticle

molybdenite
Divalent Cations
chalcopyrite
Seawater
cation
8 Citations (Scopus)

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

Sasaki, K., Toshiyuki, K., Ideta, K., Miki, H., Hirajima, T., Miyawaki, J., Murayama, M. & Dabo, I., Mar 1 2016, In : Journal of Environmental Chemical Engineering. 4, 1, p. 1092-1101 10 p.

Research output: Contribution to journalArticle

Borates
borate
Durapatite
Coprecipitation
Hydroxyapatite

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
2015
9 Citations (Scopus)

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

Yuniati, M. D., Hirajima, T., Miki, H. & Sasaki, K., Jan 1 2015, In : Materials Transactions. 56, 10, p. 1733-1741 9 p.

Research output: Contribution to journalArticle

Silicates
Pyrites
pyrites
drainage
Drainage

Silicate Covering Layer on Pyrite Surface in the Presence of Silicon–Catechol Complex for Acid Mine Drainage Prevention

Yuniati, M. D., Hirajima, T., Miki, H. & Sasaki, K., 2015, In : Materials Transactions. 56, 10, p. 1733-1741 9 p.

Research output: Contribution to journalArticle

Silicates
Pyrites
pyrites
drainage
Drainage
11 Citations (Scopus)
Microencapsulation
Coal
Pyrites
Silicon
Drainage
2014
38 Citations (Scopus)

Selective flotation of chalcopyrite and molybdenite with plasma pre-treatment

Hirajima, T., Mori, M., Ichikawa, O., Sasaki, K., Miki, H., Farahat, M. & Sawada, M., Jan 1 2014, In : Minerals Engineering. 66, p. 102-111 10 p.

Research output: Contribution to journalArticle

molybdenite
Flotation
chalcopyrite
Plasmas
plasma
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
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
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
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
2007
33 Citations (Scopus)

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

Hiroyoshi, N., Kuroiwa, S., Miki, H., Tsunekawa, M. & Hirajima, T., Jun 1 2007, In : Hydrometallurgy. 87, 1-2, p. 1-10 10 p.

Research output: Contribution to journalArticle

Sulfuric acid
Leaching
Metal ions
Minerals
Oxidation-Reduction
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
2002
85 Citations (Scopus)

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

Hiroyoshi, N., Arai, M., Miki, H., Tsunekawa, M. & Hirajima, T., Mar 1 2002, In : Hydrometallurgy. 63, 3, p. 257-267 11 p.

Research output: Contribution to journalArticle

Sulfuric acid
Silver
Leaching
Ions
Hydrogen Sulfide
2001
139 Citations (Scopus)

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

Hiroyoshi, N., Miki, H., Hirajima, T. & Tsunekawa, M., May 1 2001, In : Hydrometallurgy. 60, 3, p. 185-197 13 p.

Research output: Contribution to journalArticle

chalcopyrite
Leaching
leaching
Ions
sulfate
2000
114 Citations (Scopus)

Model for ferrous-promoted chalcopyrite leaching

Hiroyoshi, N., Miki, H., Hirajima, T. & Tsunekawa, M., Aug 2000, In : Hydrometallurgy. 57, 1, p. 31-38 8 p.

Research output: Contribution to journalArticle

Leaching
Ions
Dissolved oxygen
Sulfuric acid
Copper