低品位氧化锌矿硫化转化—浮选工艺回收铅锌  

Recovery of lead and zinc from low-grade zinc oxide ore by Sulfide Conversion-Flotation process

作　　者：王利飞 邓志敢[1] 魏昶[1] WANG Li-fei;DENG Zhi-gan;WEI Chang(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China;Yunxi Wenshan Zinc Indium Smelting Co.Ltd.,Wenshan 663701,Yunnan,China)

机构地区：[1]昆明理工大学冶金与能源工程学院,昆明650093 [2]云锡文山锌铟冶炼有限公司,云南文山663701

出　　处：《矿冶》2019年第3期71-74,共4页Mining And Metallurgy

基　　金：国家重点研发计划项目(2018YFC1900402);国家重点基础研究发展计划(973)项目(2014CB643404)

摘　　要：以云南某地区的砂岩和灰岩按1.5∶1配成的混合矿为研究对象,分别考察无硫化混合矿样和在固定硫化时间180min、矿物粒度-0.074mm占87%以上、液固比1.2∶1、硫磺量为原料量的5.5%的条件下,硫化转化温度分别为155、165、175、185、195、215、225℃时所得硫化产物的浮选效果。结果表明,硫化产物比无硫化的氧化锌矿的浮选效果好;无硫化的氧化锌矿直接浮选时,铅、锌的回收率分别为33.58%、35.77%,而当硫化转化温度为225℃时,铅、锌的回收率较高,分别为95.77%、93.52%。The mixed ores composed by standstone and limestone according to 1.5∶1 were studied.The flotation effect of non-sulfide mixed minerals and sulfide products generated under the condition of fixed vulcanization time 180 min,more than 87% of mineral granularity -0.074 mm,ratio of liquid to solid 1.2:1,the sulfur as raw material volume of 5.5%,and vulcanization transition temperature 155,165,175,185,195,215 and 225 ℃.The results show that the flotation effect of sulfide products is better than non-sulfide mixed minerals.The recovery of Zn and Pb is 33.58% and 35.77% respectively in the process of non-sulfide mixed minerals direct flotation.However,when the vulcanization transition temperature was 225 ℃,the recovery of Zn and Pb is 95.77% and 93.52% respectively.

关 键 词：氧化锌矿 硫化转化 浮选 回收率 

分 类 号：TF952[冶金工程]