硫化铜铅矿物分离过程铅抑制剂的研究现状与进展  

Present Situation and Research Progress of Galena Depressant in Copper-Lead Sulfide Ores Separation

作　　者：康博文 谢贤[1,2,3] 陈国举 范培强 宋强 Kang Bowen;Xie Xian;Chen Guoju;Fan Peiqiang;Song Qiang(Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,China;State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization,Kunming 650093,China;Yunnan Province Engineering Research Center for Reutilization of Metal Tailings Resources,Kunming 650093,China;State Key Laboratory of Nickel and Cobalt Resources Comprehensive Utilization,Jinchang 737100,China)

机构地区：[1]昆明理工大学国土资源工程学院,云南昆明650093 [2]省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093 [3]云南省金属矿尾矿资源二次利用工程研究中心,云南昆明650093 [4]镍钴资源综合利用国家重点实验室,甘肃金昌737100

出　　处：《金属矿山》2018年第10期104-109,共6页Metal Mine

基　　金：镍钴资源综合利用国家重点实验室2016年度开放基金课题(编号:301170301)

摘　　要：硫化铜铅矿物的天然可浮性接近且在浮选时部分含铜矿物溶解的铜离子会对方铅矿产生活化,因而硫化铜铅矿物的分离是矿物加工工程领域的难点。随着社会对铜铅等有色金属的需求量增大,方铅矿抑制剂的研究工作也越来越受到重视。从无机抑制剂、有机抑制剂2方面介绍了铜铅分离浮选常用的铅抑制剂。无机抑制剂主要为亚硫酸盐(二氧化硫及亚硫酸)、重铬酸盐,重铬酸盐因有毒性和污染环境,正逐渐被少铬和无铬工艺替代。有机抑制剂主要通过络合矿浆中的活化离子、吸附于方铅矿表面使得矿物表面亲水、与捕收剂发生竞争吸附以减少捕收剂在矿物表面的吸附等方式抑制方铅矿,有机抑制剂由于低毒、高效、对环境污染小,得到推广应用。指出今后应加强抑制剂抑制机理的研究,减少重铬酸盐的使用,研发和推广新型、高效、绿色抑制剂。The natural floatability of chalcopyrite and galena is close, and at the same time, some copper ions dissolved from copper minerals during flotation will activate the lead ore. Therefore, the separation of copper sulfide minerals and lead sulfide minerals has always been a difficult point in mineral processing. With the increasing demand for non-metallic metals such as copper and lead, the research and development of high-efficiency separation reagents for copper sulfide and lead sulfide minerals is imminent, and the research work of galena depressants has received more and more attention. The lead depressants commonly used in the separation of copper and lead are introduced from the aspects of inorganic depressants and organic depressants. Commonly used inorganic depressants are mainly sulfite（sulfur dioxide, sulphurous acid）, dichromate, but due to the toxicity of dichromate and environmental pollution, dichromate are gradually being replaced by less chromium and no-chromium processes. Organic depressants depress galena mainly by complexing with activated ions in the slurry, adsorbed on the mineral surface makes the mineral hydrophilic, competing with the collector to adsorb, reducing the adsorption of the collector mineral surface, etc. Organic depressants have been promoted and applied due to low toxicity, high efficiency and low environmental pollution. It is pointed out that the future research direction of copper sulfide lead mineral separation should be strengthen the research on depressants depressing mechanism, reduce the use of dichromate, develop and promotethe new, high-efficiency and green depressants.

关 键 词：铜铅分离 方铅矿 无机抑制剂 有机抑制剂 

分 类 号：TD923[矿业工程—选矿]