内蒙古某低品位铜铅锌矿石中金银回收工艺研究

在对内蒙古某低品位铜铅锌矿石工艺矿物学研究的基础上，结合矿石中主要有价组分--金银的计价结算体系，确立了将金银富集到铜铅精矿中的流程思路，进行了铜铅混合浮选、后选锌、再铜铅分离流程的工艺技术条件研究，采用试验确定的磨矿、1粗2扫1精铜铅混浮、磨矿、2次混合精选、1粗1扫1精铜铅分离、1粗2扫4精浮锌、中矿顺序返回闭路流程，可以获得金回收率达85.92%、银回收率达50.99%的铜精矿和金回收率达5.50%、银回收率达17.49%的铅精矿，金总回收率高达91.42%、银总回收率高达68.48%。

Technologic Study of Mineral Processing on Recovering Some Gold and Silver Ore from Low Grade Copper, Lead and Zinc Ore in Inner Mongolia

Based on the research of process mineralogy to some low grade copper,lead and zincores containing gold and silver ore in Inner Mongolia,combining the value system of gold and silver,the main value component in the ore，the flow  project of concentrating gold and silver to copper and lead concentrates is confirmed.According to the technical study of bulk flotation of copper-lead，copper-lead separation，flotation of zinc later,the closed circuit,ore grinding，mixed flotation of copper，lead of one roughing,two scavenging,one concentrate，another grinding，two bulk concentrate，separate of copper，lead of one roughing,one scavenging,one concentrate，zinc flotation of one roughing,two scavenging,four concentrate，middling return in sequence,is determined.The copper concentrate of gold recovery 85.92%，silver recovery 50.99%，and the lead concentrate of gold recovery 5.50%，silver recovery 17.49% are gained.The total recovery of gold is 91.42%，the total recovery of silver is 68.48% in copper concentrate and lead concentrate.