PROCESSING AN AURIFEROUS PYRITE CONCENTRATE IN THE PRESENCE OF REDUCING AGENTS

被引：8

作者：

KYDROS, KA

MATIS, KA

机构：

[1] Department of Chemistry, Chemical Technology Division, Aristotle University, Thessaloniki

来源：

CANADIAN METALLURGICAL QUARTERLY | 1995年 / 34卷 / 01期

关键词：

D O I：

10.1016/0008-4433(94)00011-8

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An industrial concentrate (consisting mainly of pyrite and arsenopyrite) was further enriched by xanthate flotation of pyrite using various reducing sulfur-containing agents as arsenopyrite depressants, that is, sodium salts of sulfide, sulfite and dithionite. It was found earlier that gold is associated mainly with arsenopyrite in this ore: therefore, the pyrite/arsenopyrite separation would be of interest. The effect of oxygen in the oxidation/adsorption of xanthate on these minerals is known. as well as their different electrocatalytic activities in oxygen reduction. This is the reason why various reducing agents were applied during pyrite flotation, giving promising results for arsenopyrite selective depression. The process was also evaluated by electrokinetic and electrochemical measurements.

引用

页码：15 / 20

页数：6

共 19 条

[1]

ADAM K, 1990, GOLD 90, P341

[2] DETERMINATION OF PRODUCTS OF REACTION BETWEEN VARIOUS SULFIDE MINERALS AND AQUEOUS XANTHATE SOLUTION, AND A CORRELATION OF PRODUCTS WITH ELECTRODE REST POTENTIALS [J].