自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

您目前所在的位置:首页 - 期刊简介 - 详细页面

中南大学学报(英文版)

Journal of Central South University

Vol. 9    No. 1    March 2002

[PDF Download]    [Flash Online]

    

Influences of silver sulfide on the bioleaching of
chalcopyrite, pyrite and chalcopyrite-containing ore
HUYue-hua1(胡岳华),WANG Jun2(王 军),QIUGuan-zhou1(邱冠周),WANG Dian-zuo1(王淀佐)

1.Department ofMineral Engineering, Central South University, Changsha410083, China;
2.Center ofEnvironmental Sciences, Beijing University, Beijing100871, China

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”.

 

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

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
版权所有:《中南大学学报(自然科学版、英文版)》编辑部
地 址:湖南省长沙市中南大学 邮编: 410083
电 话: 0731-88879765 传真: 0731-88877727
电子邮箱:zngdxb@csu.edu.cn 湘ICP备09001153号