硫化矿细菌氧化浸出机理

J4 ›› 2002, Vol. 10 ›› Issue (5): 26-31.

硫化矿细菌氧化浸出机理

方兆珩

中国科学院过程工程研究所,北京　100080

收稿日期:2001-09-04 修回日期:2001-10-14 出版日期:2002-10-28 发布日期:2012-05-30
作者简介:方兆珩(19422) ,男,研究员,主要从事矿物浸取方面的研究.
基金资助:
国家自然科学基金重点资助项目(59834150)

BIOLEACHINGMECHANISM OF SULFIDE MINERAL BY ACIDOPHILIC MESOPHILIC BACTERIA

FANG Zhaoheng

Institute of Process Engineering , Chinese Academy of Sciences , Beijing 100080 , China

Received:2001-09-04 Revised:2001-10-14 Online:2002-10-28 Published:2012-05-30

摘要/Abstract

摘要：

硫化矿的细菌浸出技术已在黄金工业和提铜工业中获得广泛应用,浸出机理的研究也已有很大进展,然而,至今仍未提出一个普遍接受的过程机理认识。从化学、电化学和生物化学3 个方面综述了近年来对这一过程机理研究的主要成果,综合论述了硫氧化的2 种不同宏观化学历程,矿物与浸出液间、矿物与细菌间的电化学反应,细菌中参与反应的基本结构单元及电子转移途径,以期获得广泛关注和深入研究,为强化浸出和提高过程效率奠定理论基础。

关键词: 细菌浸出, 硫化矿, 化学历程, 电化学, 生物化学

Abstract:

bioleaching of sulfide minerals is now an established indust ral technology for pretreating ref rectory gold concent rates and for ext raction of copper. The development and optimization of these processes requires and clear understanding of mechanism and kinetics. There is still not a generally accepted mechanism for bio-oxidation of sulfides. It is the purpose of this paper to review recent development in the mechanism research in the view of chemist ry , elect rochemist ry and molecular genetics. The chemical reactions and oxidation pathways of sulfur moiety , the elect rochemical basis , the essential component s of the iron and sulfur oxidation system and elect ron t ransport chain are briefly summarized.

Key words: bioleaching, sulfide mineral, chemist ry mechanism, elect rochemist ry , molecular genetic

中图分类号:

TF803. 21

方兆珩. 硫化矿细菌氧化浸出机理[J]. J4, 2002, 10(5): 26-31.

FANG Zhaoheng. BIOLEACHINGMECHANISM OF SULFIDE MINERAL BY ACIDOPHILIC MESOPHILIC BACTERIA[J]. J4, 2002, 10(5): 26-31.

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