二, 三の集積培養菌による銅精鉱からの黄銅鉱または黄鉄鉱の選択的浸出実験

鴻巣 彬, 千田 佶, 酒井 昇, 白鳥 寿一, 井上 千弘, 下飯坂 潤三

doi:10.2473/shigentosozai1953.104.1209_789

二, 三の集積培養菌による銅精鉱からの黄銅鉱または黄鉄鉱の選択的浸出実験

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鴻巣彬

東北大学工学部資源工学科
千田佶

東北大学工学部資源工学科
酒井昇

東京水産大学食品生産学科
白鳥寿一

同和鉱業 (株) 中央研究所
井上千弘

同和鉱業 (株) 中央研究所
下飯坂潤三

東北大学

書誌事項

タイトル別名

Selective Leaching Experiments of Chalcopyrite or Pyrite from Copper Concentrate with some Enrichment Cultures
2,3の集積培養菌による銅精鉱からの黄銅鉱または黄鉄鉱の選択的浸出実験
2 3 ノシュウセキバイヨウキンニヨルドウセイコウカラノオウ

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抄録

Copper are used was copper sulfide concentrate and enrichment cultures used were microoganisms bearing Matsuo mine, which is closed, and Yanahara mine in Japan. Energy source of cultivation was sulfur or ferrous sulfate.<BR>The leaching of the copper are with S^o;-or Fe²⁺-enrichment culture was carried out under the condition of pH2 or less. Our result indicate:<BR>1) For the selective bacterio leaching of CuFeS₂, it is necessary to feed are particle with much oxygen and to control Eh value in the range from 0.6V to 0.7V.<BR>2) In the bacterio leaching with feeding a little oxygen, the electrochemical leaching of CuFeS² is decreased and FeS₂ is leached. This phenomenon is explained on the basis of the following assumption; Oxygen is taken away from the surfaceof are by the Fe²⁺-enrichment culture.