LEACHING OF CHALCOPYRITE CONCENTRATE IN HYDROGEN PEROXIDE SOLUTION

被引：30
|
作者：
Agacayak, Tevfik [1 ]
Aras, Ali [1 ]
Aydogan, Salih [1 ]
Erdemoglu, Murat [2 ]
机构：
[1] Selcuk Univ, Min Engn Dept, TR-42075 Konya, Turkey
[2] Inonu Univ, Min Engn Dept, TR-44280 Malatya, Turkey
来源：
PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING | 2014年 / 50卷 / 02期
关键词：
chalcopyrite; dissolution; hydrogen peroxide; leaching; extraction; SULFURIC-ACID; DISSOLUTION KINETICS; CHLORIDE; COPPER;
D O I：
10.5277/ppmp140219
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The leaching conditions of chalcopyrite (CuFeS2) concentrate in a hydrogen peroxide medium were investigated by studying the effects of its leaching parameters, such as stirring speed, temperature, hydrogen peroxide concentration and the particle size of the concentrate on Cu extraction. It was found that stirring speed has no effect on the leaching. Copper extraction from chalcopyrite is directly proportional to hydrogen peroxide concentration, but the extraction decreases at temperatures above 60 degrees C. The maximum copper extraction was obtained with the following conditions without stirring: 240 min of leaching time, 3.0 M hydrogen peroxide concentration, 40 degrees C leaching temperature and 53-75. m particle size fraction.
引用
收藏
页码：657 / 666
页数：10
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