氰化尾渣中铅锌浮选影响因素及解决方案浅析

SUPERFICIAL VIEWS ON THE FACTORS AFFECTING FLOTATION OF LEAD-ZINC MINERALS IN CYANIDE RESIDUE AND THE CONCERNED SOLUTIONS

桐柏银洞坡金矿氰化尾渣浮选一直存在着铅精矿铅品位及回收率低、锌无方法回收、氰化尾渣中铅锌浮选工艺难以实现等亟待解决的问题。为解决氰化尾渣铅锌回收并进一步优化浮选工艺,本次工作进行了矿物加工学及电化学方面的研究,查清了氰化尾渣中铅锌浮选的诸多影响因素,通过采用预处理和新型闪锌矿活化剂等一系列技术措施,解决了工艺中的难题,并完成了工业实验,实现了超细粒浮选的工业生产。工业试验指标为:铅锌品位分别为48 25%和47 32%,铅锌回收率分别为77 55%和80 64%。

In Yindongpo Gold Mine,some problems necessary to be resolved in the flotation of cyanide residue existedThese problems are low lead concentrate grade and recovery,unable to recover zinc and difficult to bring the flotation of lead and zinc in cyanide residue into operationBased on studying the mineral processing and electrochemistry in flotation system,the factors affecting the flotation of leadzinc minerals in cyanide residue were found out so as to optimize flotation technology for recovery of lead and zincThrough a series of technological measures such as pretreatment and use of new activators for sphalerite,these difficult problems had been resolved,and industrialscale flotation of ultrafine leadzinc minerals realizedThe indexes resulted from commercial tests are the lead and zinc grades of 4825% and 4732%,recoveries of 7755% and 8064% respectively