Selective oxidation of minerals was investigated as a means to separate by flotation the copper sulfide minerals of chalcocite, covellite and chalcopyrite from the arsenic copper sulfide minerals of enargite and tennantite in mixed mineral systems. It was found that a separation of these minerals could be feasible after selective oxidation of their surfaces in slightly acidic pH conditions, or after oxidation and selective dissolution of the surface oxidation products with a complexant in basic pH conditions. (C) 2001 Elsevier Science B.V. All rights reserved.
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Univ Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4068, Australia
MMG Rosebery, Rosebery, Tas 7470, AustraliaUniv Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4068, Australia
Long, Graham
Peng, Yongjun
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Univ Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4068, Australia
Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, AustraliaUniv Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4068, Australia
Peng, Yongjun
Bradshaw, Dee
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Univ Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4068, AustraliaUniv Queensland, Julius Kruttschnitt Mineral Res Ctr, Brisbane, Qld 4068, Australia
机构:
Sumitomo Met Min Co Ltd, 17-5 Isouracho, Niihama, Ehime 7920002, JapanKyushu Univ, Fac Engn, Dept Earth Resources Engn, 744 Motooka,Nishi ku, Fukuoka 8190395, Japan
Ochi, Daishi
Aoki, Yuji
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Sumitomo Met Min Co Ltd, 17-5 Isouracho, Niihama, Ehime 7920002, JapanKyushu Univ, Fac Engn, Dept Earth Resources Engn, 744 Motooka,Nishi ku, Fukuoka 8190395, Japan
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Moscow State Institute of Steel and Alloys (Technical University), Moscow, 119049Moscow State Institute of Steel and Alloys (Technical University), Moscow, 119049
Babich I.N.
Adamov E.V.
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Moscow State Institute of Steel and Alloys (Technical University), Moscow, 119049Moscow State Institute of Steel and Alloys (Technical University), Moscow, 119049
Adamov E.V.
Panin V.V.
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Moscow State Institute of Steel and Alloys (Technical University), Moscow, 119049Moscow State Institute of Steel and Alloys (Technical University), Moscow, 119049