Effect of organic depressant lignosulfonate calcium on separation of chalcopyrite from pyrite

被引：0
|
作者：
Run-qing Liu
Wei Sun
Yue-hua Hu
Dian-zuo Wang
机构：
[1] Central South University,School of Resources Processing and Bioengineering
来源：
Journal of Central South University of Technology | 2009年 / 16卷
关键词：
flotation; chalcopyrite; pyrite; depression; separation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In order to selectively separate chalcopyrite from pyrite, the effect of organic depressant lignosulfonate calcium (LSC) on the flotation separation of chalcopyrite from pyrite was investigated by flotation tests. The depression mechanism was studied by Fourier-transform-infrared (FTIR) analysis. The flotation tests of single mineral show that LSC can depress the flotation of pyrite in a certain pH range, but it has little effect on chalcopyrite flotation. Flotation separation of a mixture of chalcopyrite and pyrite can be completed to obtain a copper concentrate grade up to 24.73% with a recovery of 80.36%. IR analysis shows that LSC and butyl xanthate compete in absorption on pyrite surface, and there exists an LSC characteristic peak on pyrite surface. There is little adsorption of LSC on chalcopyrite.
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页码：753 / 757
页数：4
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