矿产综合利用Issue(3)：18-22,5.
云南某难选氧硫混合铜矿石的选矿试验研究
Experimental Research on Beneficiation of a Refractory Oxygen and Sulfur Mixed Copper Ore
黄彦龙 1柏少军 1文书明 1刘丹 1吴丹丹 1吕梦阳1
作者信息
摘要
Abstract
A copper ore in Yunnan contains 1.02% Cu with complex mineral composition, high oxidation ratio and high content of calcium and magnesium, belonging to a typical refractory mixed copper ore. Directed at the ore characteristics, detailed metallurgical experiments were carried on this ore. Firstly, the copper ore was carried on intensified flotation- reverse flotation removing calcium and magnesium and then the middling was carried on hearing intensified leaching. Finally, the optimal technological condition was that the closed-circuit flowsheet of one-stage gringding, three roughing and three cleaning to recover concemtrate, the bulk leaching was adopted for the middling, the ratio of liquid to solid was 3 : 1, the pulp temperature was 70℃ ,the stirring speed was 300r/min and the reaction lime was 2h. The results showed that under this technological condition, when the combined technology of bulk flotation-reinforceful collection-reverse flotation removing calcium and magnesium-heating leaching of middling was adopted,the copper concentrate with a grade of 10% and the comprehensive recovery of copper of more than 70% was obtained. Moreover, the acid-consuming of per ton electrolytic copper was less than 20t. The economical index is satisfactory. This would benefit the exploitation of similar refractory copper ores.关键词
氧硫混合铜矿/反浮选/酸浸/选冶联合Key words
Oxygen and sulfur mixed copper ore/ Reverse flotation/ Acid leaching/ Dressing-metallurgy combination分类
矿业与冶金引用本文复制引用
黄彦龙,柏少军,文书明,刘丹,吴丹丹,吕梦阳..云南某难选氧硫混合铜矿石的选矿试验研究[J].矿产综合利用,2012,(3):18-22,5.
