甘肃某复杂多金属硫化矿石中铜与铅锌的浮选分离试验  

Flotation Separation Tests of Copper and Lead-Zinc in a Complex Polymetallic Sulfide Ores in Gansu Province

作　　者：袁勤智 邱廷省[1,2] 王梦雨 Yuan Qinzhi;Qiu Tingsheng;Wang Mengyu(School of Resource and Environmental Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Jiangxi Key Laboratory of Mining Engineering,Ganzhou 341000,China)

机构地区：[1]江西理工大学资源与环境工程学院,江西赣州341000 [2]江西省矿业工程重点实验室,江西赣州341000

出　　处：《金属矿山》2019年第7期85-91,共7页Metal Mine

基　　金：国家自然科学基金资助项目(编号:51474114);江西省自然科学基金资助项目(编号:20122BAB216021);江西省科技支撑计划项目(编号:20121BBG70005)

摘　　要：甘肃某铜铅锌多金属硫化矿石Cu、Pb、Zn、Au、Ag、S品位分别为0.75%、2.50%、5.30%、2.80 g/t、120 g/t、14.20%,均具有回收价值,前期在铜与铅锌的有效分离研究方面一直未取得突破。为了在不影响其他元素分离回收的情况下实现铜与铅锌的有效分离,进行了以铜与铅锌有效分离为核心的试验研究。结果表明,试验采用以全混合浮选-混合精矿脱硫-铜与铅锌分离原则流程为核心的多段磨选流程处理矿石,最终获得了Cu品位为21.42%、Cu回收率为71.69%、含Pb3.61%、含Zn4.28%的铜精矿,以及Pb品位为13.46%、Zn品位为28.52%、含铜1.01%、Pb回收率为93.04%、Zn回收率为92.98%的铅锌混合精矿;实现铜与铅锌有效分离的关键在于有铅锌抑制剂硫化钠+亚硫酸+FY组合配合细磨深选流程。The Cu,Pb,Zn,Au,Ag,and S grades of a copper-lead-zinc polymetallic sulfide ores in Gansu are 0.75%,2.50%,5.30%,2.80 g/t,120 g/t,and 14.20%,respectively,which are worthy to recycle.However,the effective separation of copper and lead-zinc had not progressed in the early study.In this paper,experimental study of focusing on the effective separation of copper and lead-zinc without affecting the separation and recovery of other elements was carried out.The results showed that the principle process of full mixed flotation-mixed concentrate desulfurization,multi-stage grinding and the separation of copper and lead-zinc was carried out.Cu,Pb,Zn grade and Cu recovery rate in the copper concentrate were21.42%,3.61%,4.28%,71.69%respectively.Pb,Zn,Cu grade and Pb,Zn recovery rate in the mixed lead-zinc concentrate were 13.46%,28.52%,1.01%,93.04%,and 92.98%,respectively.The key to achieve effective separation of copper and lead-zinc was the combination of lead-zinc inhibitor sodium sulfite+sulfurous acid+FY and the fine-grinding deep-concentrating process.

关 键 词：多金属硫化矿 混合浮选 分离 

分 类 号：TD952.1[矿业工程—选矿] TD952.2