某铜金银硫多金属矿综合回收选矿试验研究  

Experimental Study on Comprehensive Recovery of a Copper-Gold-Silver-Sulfur Polymetallic Ore

作　　者：陈杜娟[1] 郭海宁[1] 苗梁 李福兰[1] CHEN Dujuan;GUO Haining;MIAO Liang;LI Fulan(Northwest Research Institute of Mining&Metallurgy,Baiyin 730900,Gansu,China)

机构地区：[1]西北矿冶研究院,甘肃白银730900

出　　处：《有色金属（选矿部分）》2021年第3期83-87,共5页Nonferrous Metals（Mineral Processing Section）

摘　　要：甘肃某多金属矿可综合回收利用的有价元素为铜、金、银、硫,试验研究针对该矿石次生铜含量高、铜硫嵌布关系紧密、有用矿物粒度细的性质特点,采用铜硫混合浮选—粗精矿再磨—铜硫分离工艺流程和新型药剂酯-11,获得了铜品位19.05%、铜回收率90.07%、金品位7.46g/t、金回收率60.43%、银品位42.00g/t、银回收率41.20%的铜精矿和硫品位41.28%,硫回收率62.22%的硫精矿,为该矿石的综合回收提供了技术依据。The valuable elements that can be comprehensively recycled from a polymetallic ore in Gansu province are copper,gold,silver and sulfur.According to the characteristics of high secondary copper content,close copper-sulfur intercalation and fine particle size of useful minerals,the experimental research adopts the process of copper-sulfur bulk flotation-coarse concentrate regrinding-copper-sulfur separation and the new reagent ester-11,which obtains not only the copper concentrate with copper grade of 19.05%,copper recovery of 90.07%,gold grade of 7.46 g/t,gold recovery of 60.43%,silver grade of42.00 g/t,silver recovery of 41.20%,but also the sulfur concentrate with sulfur grade of 41.28%and sulfur recovery of 62.22%.It provides technical basis for comprehensive recovery of the ore.

关 键 词：多金属矿 次生铜 伴生金银 再磨 铜硫分离 

分 类 号：TD952[矿业工程—选矿]