BIOLEACHING OF REFRACTORY ARSENICAL PYRITE CONCENTRATES TO ENHANCE GOLD EXTRACTION

被引：0
|
作者：
LIU, XY [1 ]
LINDSTROM, B [1 ]
PETERSSON, S [1 ]
机构：
[1] UMEA UNIV,APPL CELL & MOLEC BIOL UNIT,S-90187 UMEA,SWEDEN
来源：
SCANDINAVIAN JOURNAL OF METALLURGY | 1991年 / 20卷 / 06期
关键词：
ARSENOPYRITE PYRITE CONCENTRATE; BIOLEACHING; REFRACTORY GOLD EXTRACTION;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A thermophilic species, Sulfolobus acidocaldarius, strain BC, has been used for the bioleaching of refractory arsenical pyrite concentrates to enhance gold extraction in cyanidation. The results of laboratory batch tests on two concentrates are presented. In both cases gold extraction rates were greatly increased from below 11% with only cyanidation to over 90% with the bioleaching pretreatment. The behaviour of arsenopyrite and pyrite is described during the biooxidation course. Correlations are determined between the degree of the arsenopyrite/pyrite oxidation and the gold extraction rate.
引用
收藏
页码：346 / 350
页数：5
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