化工矿物与加工2026，Vol.55Issue(1)：1-6,6.DOI:10.16283/j.cnki.hgkwyjg.2026.01.001
河南某金尾矿工艺矿物学及石英可选性研究
Study on process mineralogy and quartz washability of gold tailings in Henan Province
摘要
Abstract
In order to realize the large-scale reduction and high-value utilization of a gold tailings in Henan Province,the chemical composition,mineral composition,particle size distribution,mineral dissemination characteristics and dissociation degree of the gold tailings were studied on technological mineralogy,and on this basis,the experimental study on the selectivity of comprehensive recovery of quartz was carried out.The results show that the particle size of-0.074 mm in the gold tailings accounts for 62.1%,and the mass fractions of quartz,K-feldspar,plagioclase and biotite are 63.91%,12.19%,8.43% and 7.32%,respectively.It also contains a small amount of calcite,dolomite,hornblende and rutile.The complete dissociation degree of quartz in the gold tailings is 68.74%.Most of the quartz is dissociated from potassium feldspar,plagioclase,biotite and other minerals,and only a small amount of quartz is asso-ciated with potassium feldspar,biotite,plagioclase,wollastonite and other minerals.Quartz in gold tailings was recovered by the process of desliming-magnetic separation-scrubbing-reverse flotation iron removal-reverse flotation mica-reverse flotation feldspar,and quartz concentrate with SiO2 mass fraction of 98.580% was obtained.The quartz concentrate was treated by acid leaching with mixed acid,and the product with SiO2 mass fraction of 99.924 0% was obtained,which met the quality requirements of JC/T 2314-2015 silicon raw material for photovoltaic glass for photovoltaic sand.The research results can provide reference for the efficient and comprehensive recovery of gold tailings resources in the future.关键词
金尾矿/工艺矿物学/石英/选矿/综合回收/酸浸/解离度Key words
gold tailings/process mineralogy/quartz/mineral processing/comprehensive recovery/acid leaching/dissociation degree分类
矿业与冶金引用本文复制引用
彭伟军,郭晓,刘原,王光伟,黄琴,祁梦瑶..河南某金尾矿工艺矿物学及石英可选性研究[J].化工矿物与加工,2026,55(1):1-6,6.基金项目
国家重点研发计划项目(2020YFC1908804). （2020YFC1908804）
