豫西某金钨矿综合利用试验研究  

Comprehensive Utilization of Gold-tungsten Ore from Western Henan Province

作　　者：李文军[1,2] 岳铁兵[1,2] 吕良[1,2] 刘磊[1,2] 

机构地区：[1]中国地质科学院郑州矿产综合利用研究所,河南郑州450006 [2]国土资源部多金属矿评价与综合利用重点实验室,河南郑州450006

出　　处：《矿产保护与利用》2017年第3期47-51,共5页Conservation and Utilization of Mineral Resources

基　　金：国土资源公益性行业科研专项经费项目(201311023)

摘　　要：豫西某金矿金品位为2.15 g/t,WO_3品位为0.115%,硫品位为3.31%。含硫高限制了浮选精矿金的富集比。选金采用浮选—中矿再选后氰化浸出的工艺流程,浮选精矿金品位32.10 g/t,回收率85.30%,与常规工艺相比,金品位提高2 g/t,且回收率没有降低。选金尾矿采用浮选工艺回收钨,粗选钨精矿WO_3品位2.86%、回收率70.53%,为后续加温精选创造了条件。A gold ore from western Henan province contains 2. 15 g/t Au, 0. 115% WO3 and 3.31% S. The grade of the flotation concentrate was restricted by the high sulfur content in the raw ore. A process of flotation and middling reflotation in conjunction with cyanide leaching of the reflo- tation railings was applied in this study. The Au grade of concentrate was 32.10 g/t with a recovery of 85.30% , which was increased by 2 g/t without decreasing gold recovery when compared with the conventional process. Then, the flotation of gold tailings was conducted to recover tungsten. The rough tungsten concentrate recovered 70.53% WO3 with a grade of 2.86% , which provided the conditions for subsequent heating concentrating.

关 键 词：金矿 浮选 中矿再选 氰化浸出 白钨矿 综合回收 

分 类 号：TD954[矿业工程—选矿]