中文摘要：

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。

英文摘要：

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.