Arsenic leaching from a gold bearing enargite flotation concentrate

被引：46

作者：

Curreli, L. ^{[1
]}

Garbarino, C. ^{[1
]}

Ghiani, M. ^{[1
]}

Orru, G. ^{[1
]}

机构：

[1] Univ Cagliari, Dept Geoengn & Enviromental Technol DIGITA, I-09124 Cagliari, Italy

来源：

HYDROMETALLURGY | 2009年 / 96卷 / 03期

关键词：

Enargite; Gold; Flotation concentrate; Arsenic leaching; Sodium sulphide; HYPOCHLORITE;

D O I：

10.1016/j.hydromet.2008.10.013

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The high arsenic content of the flotation concentrate obtained from a gold-bearing enargite ore for pyrometallurgical processing strongly diminishes its market Value. An investigation has been carried out for selectively leaching arsenic from enargite-luzonite minerals using alkaline Na(2)S solutions. By suitably adjusting the main reaction conditions almost 98% arsenic was leached, as well as part of the gold, particularly with high Na(2)S concentrations. Copper was not lost from the solid phase in which the enargite is converted into a new species with the chemical formula Cu(1.5)S. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：258 / 263

页数：6

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