摘要
针对滇西难选高硫低品位铅锌矿,含硫矿物与铅锌矿物共生密切、嵌布粒度细的特点;在原矿磨矿至-0.074 mm占80%时,采用“部分铅硫混选-铅硫粗精矿再磨-铅硫分离”及“抑硫浮锌-锌硫粗精矿再磨-锌硫分离”的部分混合优先浮选的原则工艺流程,实现了铅锌硫三种矿物的有效分离。最终在小型闭路试验中获得了含铅55.68%、含锌2.71%、铅回收率77.01%的铅精矿;硫品位35.47%、含铅1.34%、含锌0.73%、硫回收率2.84%的硫精矿;含锌44.20%、含铅1.21%、锌回收率87.3%锌精矿的较好指标,使三种矿物得到充分回收,提高资源利用率,增加企业经济效益。
One refractory low grade lead-zinc ore with high sulfur in western Yunnan,its features is that the sulfur-bearing ore has close intergrowth with lead-zinc ore,its dissemination size is fine;when ore grinding of raw ore is-0.074 mm accounted for 80%,by using of the partial mixed preferential flotation principle process flow that"fractional lead-sulfur mixed flotation-lead-sulfur rough concentrate regrinding-lead and sulfur separation"and"sulfur inhibition zinc flotation-zinc and sulfur rough concentrate regrindingzinc and sulfur separation",therefore,it is realized the effective separation of three kinds ore(lead,zinc,sulfur).Finally,through small closed circuit test,we can get the following indicators that the sulfur concentrate that lead content is 55.68%,zinc content is 2.71%,the lead concentrate has 77.01%lead recovery rate;the sulfur grade is 35.47%,lead grade is 1.34%,zinc content is 0.73%,the sulfur concentrate has 2.84% sulfur recovery rate;zinc content is 44.20%,lead content is 1.21%,the zinc concentrate has 87.3%zinc recovery rate,three kinds of ore was recovered sufficiently,the economic benefit of enterprise can be increased.
作者
余艳平
张晶
高西平
蒲雪丽
邱兆莹
张汉平
YU Yan-ping;ZHANG Jing;GAO Xi-ping;PU Xue-li;QIU Zhao-ying;ZHANG Han-ping(Kunming Metallurgical Research Institute Co.,Ltd.,Kunming,Yunnan 650031,China;Yunnan Key Laboratory for New Technology of Beneficiation and Metallurgy,Kunming,Yunnan 650031,China;Yunnan Coal Geological Exploration Institute,Kunming,Yunnan 650218,China;Kunming Engineering&Research Institute of Nonferrous Metallurgy Co.,Ltd.,Kunming,Yunnan 650051,China;Kunming Metallurgical College,Kunming 650031,China)
出处
《云南冶金》
2022年第4期48-53,共6页
Yunnan Metallurgy
关键词
高硫
铅锌矿
低品位
部分混合优先浮选
high sulfur
lead-zinc ore
low grade
partial mixed preferential flotation
