从铜老尾矿中综合回收有价元素的研究  

Study on Mineral Processing Technology for Comprehensive Recovery of Valuable Elements from Old Copper Tailings

作　　者：宋磊[1] 周少珍[1] 戴新宇[2] 

机构地区：[1]北京矿冶研究总院矿物加工科学与技术国家重点试验室,北京100160 [2]中国地质科学院矿产综合利用研究所,成都610041

出　　处：《有色金属（选矿部分）》2014年第6期9-12,共4页Nonferrous Metals（Mineral Processing Section）

基　　金：国家高技术研究发展计划(863计划)课题(2012AA062402)

摘　　要：针对某堆积老尾矿有价矿物种类繁多、嵌布粒度细,解离困难,含泥高的特性,制定了磨矿擦洗—先硫后氧原则技术方案,通过优化浮选条件及筛选药剂等措施克服不利因素,实现了目的矿物有效回收,实验室试验获得总铜精矿铜品位11.35%、铜回收率为51.42%,并回收了金银等有价元素,该研究为难选堆积铜尾矿综合利用提供了技术支撑。Aiming at the characteristics of stacked old tailings, various valuable minerals, fine-grained embedded, dissociation difficulty, high mud content, the principle technology scheme of grinding scrub sulphide minerals flotation before oxide minerals flotation was formulated. Optimizing the flotation conditions and screening reagents and other measures were carried out to overcome various unfavorable factors to achieve the purpose mineral effective recycling. The bench-scale test show total copper concentrate grade is 11.35%, copper recovery is 51.42%, and precious metals Au and Ag were recycled. This study provides the technical support for stacked old copper tailings comprehensive utilization.

关 键 词：铜尾矿 综合回收 浮选 

分 类 号：TD926.41[矿业工程—选矿]