TY - JOUR
T1 - Selective leaching experiments of chalcopyrite or pyrite from copper concentrate with some enrichment cultures
AU - Kounosu, Akira
AU - Chida, Tadashi
AU - Sakai, Noboru
AU - Shiratori, Toshikazu
AU - Inoue, Chihiro
AU - Shimoiizaka, Junzo
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1988
Y1 - 1988
N2 - The copper ore used was copper sulfide concentrate. The energy source of cultivation was sulfur or ferrous sulfate. The leaching of the copper ore with S° or Fe2+ enrichment culture was carried out under the condition of pH 2 or less. For the selective bacterio leaching of CuFeS2, it is necessary to feed the ore particle with oxygen and to control Eh value in the range from 0.6v to 0.7v. In leaching with feeding little oxygen, the electrochemical leaching is decreased and FeS2 is leached. This phenomenon is explained on the assumption that oxygen is taken away from the surface by the Fe2+ enrichment culture.
AB - The copper ore used was copper sulfide concentrate. The energy source of cultivation was sulfur or ferrous sulfate. The leaching of the copper ore with S° or Fe2+ enrichment culture was carried out under the condition of pH 2 or less. For the selective bacterio leaching of CuFeS2, it is necessary to feed the ore particle with oxygen and to control Eh value in the range from 0.6v to 0.7v. In leaching with feeding little oxygen, the electrochemical leaching is decreased and FeS2 is leached. This phenomenon is explained on the assumption that oxygen is taken away from the surface by the Fe2+ enrichment culture.
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U2 - 10.2473/shigentosozai1953.104.1209_789
DO - 10.2473/shigentosozai1953.104.1209_789
M3 - Article
AN - SCOPUS:0024106960
VL - 104
SP - 789
EP - 794
JO - Nihon Kogyokaishi
JF - Nihon Kogyokaishi
SN - 0369-4194
IS - 1209
ER -