摘要
针对粤北某极低品位伴生稀有金属矿石,采用由"分级-粗粒跳汰-细粒摇床"重选预富集工艺、"钨硫枱浮分组-分类磨矿-异步浮选分离"钨硫分离工艺和"加温脱药-钼优先浮选-铋银重选-铜银浮选"硫化矿相互分离工艺3部分组成的工艺流程,生产实践结果显示,在原矿钨、铜、钼、铋、银品位分别为0.417%、0.111%、0.017%、0.072%和9.909 g/t时,获得了钨、铜、钼、铋、硫品位分别为61.96%、21.69%、51.89%、25.18%和44.51%,回收率分别为80.21%、72.28%、64.01%、56.40%和60.41%的合格产品,银在铜、铋精矿中品位分别为353.31 g/t和3 391.49 g/t,总回收率为68.27%,充分回收了铜、钼、铋、硫、钨等有价金属元素,实现了极低品位伴生稀有金属矿产资源的高效综合利用。
According to the properties of a ultra-lean associated rare metals ore from northern Guangdong, a three-stage beneficiation flowsheet is adopted, that is, a pre-enrichment gravity separation process consisting of classification, jigging of coarse fraction and shaking table separation of fine fraction, a flotation process to separate sulfides from tungsten consisting of pulp splitting by table floating, separate grinding and asynchronous flotation, and a sulfide separation process consisting of reagent removal by heating, selective flotation of Mo, Bi-Ag gravity separation and Cu-Ag flotation. The commercial practice shows that from the raw ore grading 0.417% WO3, 0.111% Cu, 0.017% Mo, 0.072% Bi and 9.909 g/t Ag, a tungsten concentrate assaying 61.96% WO3 at 80.21% recovery, a copper concentrate assaying 21.69% Cu at 72.28% recovery, a molybdenum concentrate assaying 51.89% Mo at 64.01% recovery, a bismuth concentrate assaying 25.18% Bi at 56.40% recovery, and a sulfur concentrate assaying 44.51% S at 60.41% recovery are obtained. Silver is mainly enriched into the bismuth concentrate(3 391.49 g/t) and copper concentrate(353.31 g/t) with a total recovery of 68.27%. The comprehensive utilization of ultra-lean associated rare metals ore is attained with valuable metals of Ag, Cu, Mo, Bi, S and WO3 all adequately recovered.
作者
邹坚坚
胡真
汪泰
李沛伦
王成行
ZOU Jian-jian;HU Zhen;WANG Tai;LI Pei-lun;WANG Cheng-hang(State Key Laboratory of Rare Metals Separation and Comprehensive Utilization, Guangdong Institute of Resources Comprehensive Utilization, Guangzhou 510651 , Guangdong, China;Guangdong Provincial Key Laboratory of Development and Comprehensive Utilization of Mineral Resource, Guangzhou 510651 , Guangdong, China)
出处
《矿冶工程》
CAS
CSCD
北大核心
2019年第4期63-67,71,共6页
Mining and Metallurgical Engineering
基金
广州市科技计划项目(201707020005)
关键词
极低品位
伴生稀有金属
钨
铋
铜
钼
银
ultralean
associated rare metal minerals
tungsten
bismuth
copper
molybdenum
silver
