南京铅锌银矿铅精矿中铜的浮选分离试验  

Flotation Separation Experiment of Copper from Lead Concentrate of Nanjing Pb-Zn-Ag Mine

作　　者：罗仙平[1] 张建超[1] 钱有军[1] 缪建成[1,2] 

机构地区：[1]江西理工大学资源与环境工程学院 [2]南京银茂铅锌矿业有限责任公司

出　　处：《金属矿山》2012年第6期75-78,共4页Metal Mine

基　　金：国家自然科学基金项目(编号:50704018);江西省自然科学基金项目(编号:2007GQC0643);江西省科技支撑计划项目(编号:20111BBE50015);江西省教育厅科学技术研究项目(编号:GJJ08267)

摘　　要：为降低南京铅锌银矿铅精矿中的铜含量,同时获得合格的铜精矿,以重铬酸钾+CMC为铅的组合抑制剂、江西理工大学研发的LP-01为铜的捕收剂,对该铅精矿进行浮选分离铜的实验室试验,使铅精矿的铜含量从1.01%降低到了0.41%,并获得了铜品位为18.12%、铜回收率为61.05%的铜精矿。在实验室试验的基础上进一步进行工业试验,结果铅精矿的铜含量从2.85%降低到了1.34%,所获铜精矿的铜品位为21.68%、铜回收率为56.39%。工业试验还表明,来自铜精矿和最终铅精矿的含Cr6+废水经亚硫酸钠+石灰法处理后可循环利用,从而最大限度地避免Cr6+对环境的污染。In order to reduce the copper content of Nanjing Pb-Zn-Ag Ore lead concentrates and obtain qualified copper concentrate ,adopted K2Cr2O7 ＋ CMC as lead combined depressants, Jiangxi university of science and technology researched and developed the LP-01 as copper collector to the lead concentrates on copper flotation separation in laboratory. The copper content of lead concentrate reduced from 1.01% to 0.41%, and access to the copper concentrate with grade 18. 12%, recovery 61.05%. Based on the test in laboratory further industrial experimental was done, the lead concentrates with copper content reduced from 2. 85% to 1.34% , and received copper concentrate grade 21.68% , copper recovery 56. 39%. Industrial experiment also shows that the wastewater of copper concentrate and final lead concentrate containing Cr6 ＋ can be reevcled bv the sodium sulfite ＋ lime. thus maximum limit avoids Cr6 ＋pollution to the environment.

关 键 词：铅精矿 铜铅分离 组合抑制剂重铬酸钾+CMC 铜捕收剂LP-01 

分 类 号：TD853.34[矿业工程—金属矿开采]