某铅锌矿铅精矿降锌及提高伴生金、银综合回收试验研究  

Experimental Study on Zn Reduction and Comprehensive Recovery of Associated Au and Ag in Lead Concentrate of a Lead-Zinc Mine

作　　者：彭贵熊 巩明辉[1] 李法坤 PENG Guixiong;GONG Minghui;LI Fakun(Northwest Research Institute of Mining and Metallurgy,Baiyin 730900,China;Altay Zhengyuan International Mining Co.Ltd.,Altay Xinjiang 836701,China)

机构地区：[1]西北矿冶研究院,甘肃白银730900 [2]阿勒泰正元国际矿业有限公司,新疆阿勒泰836500

出　　处：《甘肃冶金》2024年第3期20-24,共5页Gansu Metallurgy

摘　　要：随着回采作业区推进,青海某铅锌矿采出矿石品位及性质发生了变化,原矿伴生Au、Ag等贵金属回收率偏低,铅精矿中Zn含量有所升高,影响了Zn回收率。为此,在现场工艺流程及条件的基础上,开展了小型试验研究。试验过程中使用了金银高效捕收剂A_(22)及新型锌矿物抑制剂T_(27),提高了Au、Ag回收率的同时降低了铅精矿中Zn含量,稳定了指标。小型试验闭路结果Au回收率提高了9.76个百分点,Ag回收率提高了8.97个百分点,铅精矿中Zn含量降低了0.99个百分点,指标改善较为明显,经济效益显著。With the development of mining area,the ore grade and properties of a lead-zinc mine in Qinghai Province have changed.The recovery rate of Au,Ag and other precious metals associated with the raw ore is low,and the content of Zn in lead concentrate has increased,which affects the recovery rate of Zn.Therefore,on the basis of the field process and conditions,a small experimental study was carried out.A_(22),an efficient gold and silver collector,and T_(27),a new zinc mineral inhibitor,were used in the experiment.The recovery rate of Au and Ag was increased,and the Zn content in lead concentrate was decreased,which stabilized the index.The closed-circuit test results showed that the Au recovery rate increased by 9.76 percentage points,the Ag recovery rate increased by 8.97 percentage points,and the Zn content in lead concentrate decreased by 0.99 percentage points.

关 键 词：铅锌矿 捕收剂 抑制剂 A_(22) T_(27) 

分 类 号：TD952[矿业工程—选矿] TD923