越南某含银铅锌矿选矿工艺比选试验研究  

Experimental Study on Beneficiation Process Comparison Test of one Silver-bearing Lead-zinc Ore in Vietnam

作　　者：郎启斌 邱兆莹 蒲雪丽 LANG Qi-bin;QIU Zhao-ying;PU Xue-li(Yunnan Dinglong Mining Co.,Ltd.,Kunming,Yunnan 650102,China;Chengdu Branch Company,China ENFI Engineering Technology Co.,Ltd.,Chengdu,Sichuan 610042,China)

机构地区：[1]云南鼎龙矿业有限公司,云南昆明650102 [2]中国恩菲工程技术有限公司成都分公司,四川成都610042

出　　处：《云南冶金》2023年第5期63-67,共5页Yunnan Metallurgy

摘　　要：越南某含银铅锌矿属于硫化铅、锌矿石,且仅含有少量黄铁矿的特点。采用:“抑锌-选铅”的优先浮选原则工艺流程,进行了详细试验研究,并从选别指标、再磨矿量及金属价值等方面详细对比了两个闭路试验流程,最终选择:“优先选铅-中矿再磨再选-后选锌”原则工艺流程来处理矿石。小型闭路试验中获得了铅精矿品位Pb 65.42%、Zn 3.80%、Ag 452.8 g/t,回收率Pb 85.20%、Zn 2.00%、Ag 60.96%;锌精矿品位Pb 1.49%、Zn 55.67%、Ag 79.5 g/t,回收率Pb 6.06%、Zn 91.48%、Ag 33.44%。铅锌银等有价元素均得到有效回收。One silver-bearing lead-zinc ore in Vietnam belongs to lead-zinc sulfide ore,it contains a small quantity of pyrite.The preferential flotation principle of"zinc suppression-lead beneficiation"was adopted to proceed with detailed experimental study,so two closed circuit test flows were compared in detail from aspects of mineral processing indexes,regrinding ore volume,metal value and so on,so the process flow"preferential lead selection-regrinding and recleaning of middlings-zinc selection at last stage"was adopted for ore treatment.The following indexes were obtained in a small closed circuit test:the grade of Lead concentrate are Pb 65.42%,Zn 3.80%,Ag 452.8 g/t,and the recovery rates are:Pb 85.20%,Zn 2.00%,Ag 60.96%;the grade of zinc concentrate are Pb 1.49%,Zn 55.67%,Ag 79.5 g/t,the recovery rate are Pb 6.06%,Zn 91.48%,Ag 33.44%.The valuable elements like lead,zinc and silver were recovered effectively.

关 键 词：铅锌硫化矿 优先浮选 粗精矿再磨 中矿再磨 

分 类 号：TD952[矿业工程—选矿]