有色金属科学与工程2024，Vol.15Issue(6)：922-931,10.DOI:10.13264/j.cnki.ysjskx.2024.06.015
内蒙古某高硫铅锌矿的选矿工艺优化试验
Research on the optimization of beneficiation processes for a lead-zinc ore from inner mongolia autonomous region
摘要
Abstract
A high sulfur lead-zinc ore from Inner Mongolia of China contains Pb of 3.62%,Zn of 5.09%,Ag of 79.3g/t and S of 18.49%.This type of ore used selective flotation in the on-site production,recovering Pb of 85.82%,Zn of 89.53%and Ag of 56.38%,respectively.To improve the recovery rates of Pb and Ag,a bulk flotation process was studied according to the processing mineralogy of the lead-zinc ore.The results indicated that the lead-zinc ore had a complicated associated relationship,and the particle size of galena was finer than that of sphalerite and pyrite,which made it difficult to liberate the valuable mineral fully.A new process that Pb and S mixed flotation followed by Pb flotation separation before regrinding and Zn selective flotation from the tailings of bulk flotation was adopted to recover the lead-zinc minerals in the ore.Under the optimal condition determined by the experiments,the grade and recovery of concentrates obtained from the closed-circuit tests on the laboratory scale were 54.41%and 88.03%for Pb concentrates,48.27%and 90.45%for Zn concentrates.The content and recovery of Ag in Pb concentrates was 1 213.8 g/t and 61.98%,respectively.关键词
高硫铅锌矿/混合浮选/工艺优化Key words
high sulfur lead-zinc ore/mixed flotation/process optimization分类
矿业与冶金引用本文复制引用
杨波,王晓,龙贤灏,谢贤..内蒙古某高硫铅锌矿的选矿工艺优化试验[J].有色金属科学与工程,2024,15(6):922-931,10.基金项目
云南省基础研究专项面上项目(202101AT070141) （202101AT070141）
昆明学院引进人才科研项目(YJL2004、YJL20013) （YJL2004、YJL20013）
