Improving the efficiency of oxide copper-cobalt ores flotation by combination of sulphidisers

被引：57

作者：

Kongolo, K

Kipoka, M

Minanga, K

Mpoyo, M

机构：

[1] Gecamines Brussels, Gecamines Met Res Ctr, B-1170 Brussels, Belgium

[2] Univ Lubumbashi, Lubumbashi, DEM REP CONGO

来源：

MINERALS ENGINEERING | 2003年 / 16卷 / 10期

关键词：

oxide ores; flotation activators;

D O I：

10.1016/S0892-6875(03)00263-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Sulphidising flotation of oxide copper-cobalt ores with sodium hydrosulphide used as sulphidising agent is common practice in Katanga, Democratic Republic of Congo. From laboratory investigations, sodium hydrosulphide proved to enhance flotation selectivity of copper and cobalt towards the gangue minerals, while ammonium sulphide emerged as a strong non-selective sulphidiser. Best results were recorded with a synergistic combination of sulphidisers; a 1/1 mixture of sodium hydrosulphide and ammonium sulphide. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：1023 / 1026

页数：4