化工矿物与加工2025，Vol.54Issue(3)：10-20,11.DOI:10.16283/j.cnki.hgkwyjg.2025.03.002
中国滇西地区金银铜多金属硫化矿工艺矿物学研究
Study on process mineralogy of gold-silver-copper polymetallic sulfide ore in western Yunnan,China
摘要
Abstract
There are a large number of gold-silver-copper polymetallic sulfide ore resources in western Yunnan,China.There are many kinds of associated metals in the ore.The valuable minerals are finely disseminated and the separation is difficult.The study of process mineralogy can provide scientific basis for the determination of beneficia-tion process flow.In this paper,the elemental composition,mineral composition,phase composition,dissemination characteristics and monomer dissociation degree of the polymetallic sulfide ore were systematically analyzed by means of chemical analysis,X-ray diffractometer,scanning electron microscope and mineral automatic analyzer.The results show that the main valuable elements in the ore are Au,Ag,Cu,Pb,Zn,S and Fe,and the grades are 1.92 g/t,41.34 g/t,0.40%,1.19%,0.42%,9.54%and 35.51%,respectively.The target minerals are mainly native gold,argentite,chalcopyrite,galenite,sphalerite,magnetite and pyrite.The mineral composition is more complex,and there is a certain degree of interconnection or encapsulation between the minerals.Gold minerals are easy to dissociate and have a high degree of surface exposure,which is easy to recycle.Silver minerals are diverse and closely associated with copper and lead minerals,making it difficult to achieve efficient enrichment.The monomer dissociation degree of chalcopyrite and magnetite is medium to low,which is 70.96%and 66.17%respectively.The proportion of fusulinite is relatively high,which needs to be re-enriched after fine grinding.According to the research results of process mine-ralogy,a systematic metallurgical process should be developed closely around the high-value utilization of precious metals such as gold and silver,to produce concentrate products with superior comprehensive indicators such as copper,lead,zinc,iron,and sulfur,in order to achieve efficient utilization of gold,silver,copper polymetallic sulfide resources in the region.关键词
多金属硫化矿/工艺矿物学/粒度分布/矿物组成/赋存特性/解离度/共生关系Key words
polymetallic sulphide ore/process mineralogy/particle size distribution/mineral composition/occur-rence characteristics/dissociation degree/symbiotic relationship分类
矿山工程引用本文复制引用
祁磊,朱坤,戴惠新..中国滇西地区金银铜多金属硫化矿工艺矿物学研究[J].化工矿物与加工,2025,54(3):10-20,11.基金项目
国家自然科学基金项目(51804024). （51804024）
