简介概要

Influences of silver sulfide on the bioleaching of chalcopyrite, pyrite and chalcopyrite-containing ore

来源期刊:中南大学学报(英文版)2002年第1期

论文作者:胡岳华 王军 邱冠周 王淀佐

文章页码:11 - 15

Key words:silver sulfide; catalysis; chalcopyrite-containing ores; bioleaching

Abstract: The effects of silver sulfide (Ag2S) on the bioleaching of chalcopyrite and pyritewere investigated in this paper. It has been shown that Ag2S enhanced the yields of bioleaching of chalcopyrite but inhibited the bio-oxidation of pyrite. The addition ofAg2S selectively increased the copper dissolution from the chalcopyrite-containing ores in shake flasks with a recovery of 85.3% compared with 24.3% without Ag2S, while slightly decreased the iron yields from 51% to 41.8%. The copper extraction of the chalcoopyrite-containing waste rock in column leaching charged with 18 kgmass increased up to 21.7% in the presence ofAg2S, while only 3.4% in the absence of the catalyst. The mechanismofAg2S catalysis could be explained well by the“Mixed potential model”.

详情信息展示

<上一页 1 下一页 >

相关论文

  • 暂无!

相关知识点

  • 暂无!

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号