THE USE OF SODIUM-SULFITE TO IMPROVE THE FLOTATION SELECTIVITY BETWEEN CHALCOPYRITE AND GALENA IN A COMPLEX SULFIDE ORE

被引：25

作者：

HOUOT, R ^{[1
]}

DUHAMET, D ^{[1
]}

机构：

[1] KAOLINS MORBIHAN,F-56270 PLOEMEUR,FRANCE

来源：

MINERALS ENGINEERING | 1992年 / 5卷 / 3-5期

关键词：

SODIUM SULFITE; FLOTATION; SELECTIVITY; GALENA; CHALCOPYRITE;

D O I：

10.1016/0892-6875(92)90216-V

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The processing of complex sulphide ores by the sequential method of flotation requires maximal selectivity. In particular, the entrainment of galena into the chalcopyrite concentrate obtained with a dialkylthionocarbamate-type collector must be minimized. Use of sodium sulphite, in association with alkaline-earth or metal hydroxides released by the ore, helps to reduce the entrainment of lead into the copper ore. We have observed these phenomena with pure minerals and then with a natural ore. Observations of the electrokinetic potential and surface adsorption phenomena of galena suggest a mode of action of Ca2+ and Ba2+ ions or metal hydroxides. The species formed by barium on galena were detected by diffuse reflectance infrared interferometry.

引用

页码：343 / 355

页数：13

共 7 条

[1]

BUTALOVIC SM, 1985, COMPLEX SULFIDES PRO

[2] INTERACTION OF FINELY GROUND GALENA AND POTASSIUM AMYLXANTHATE IN FLOTATION .1. INFLUENCE OF ALKALINE GRINDING [J].