云南冶金2026，Vol.55Issue(3)：93-99,7.
提高流态化焙烧矿中铜的浸出率试验研究
Experimental Study on Improving Copper Leaching Rate of Fluidized Roasted Ore
摘要
Abstract
In view of the low copper leaching rate of fluidized-roasted zinc concentrate,combined with the mineralogical characteristics of materials and occurrence state of copper,the effect of final leaching acidity on copper leaching rate was explored.Systematic oxidative intensified leaching experiments were carried out under the terminal leaching pH values of 4.0 and 5.0.the results show that:Copper ion hydrolysis and precipitation are key factors affecting the direct recovery rate of copper in hydrometallurgy.The copper ion concentration at the leaching terminal pH of 4.0 is obviously higher than that at pH 5.0.The content of Fe2+in the solution system during leaching represents the reduction degree of the solution.Adding oxidant can reduce ferrous ion content and increase copper leaching rate.Meanwhile,the enhancement effect order of four common oxidant on copper leaching rate is obtained:potassium permanganate＞sodium persulfate＞hydrogen peroxide＞manganese powder The research results provide theoretical and technical references for improving the copper leaching rate of fluidized roasted ore.关键词
流态化焙烧/高铜焙砂/中浸/铜浸出率Key words
fluidized roasting/high-copper calcine/neutral leaching/copper leaching rate分类
矿业与冶金引用本文复制引用
徐刚,杨万鑫,梁艳辉,李玥娴,范茂盛,保佳懿,邓海波,强振华,余秋雁,董铁广,刘维维,邹维..提高流态化焙烧矿中铜的浸出率试验研究[J].云南冶金,2026,55(3):93-99,7.基金项目
云南省重点研发计划(202403AA080006) （202403AA080006）
中铝集团青年科技人才培养对象(351202250003) （351202250003）
