难选深度氧化铅银矿的浮选工艺研究  

Investigations on Flotation Process for a Refractory Silver Bearing Deeply Oxidized Lead Ore

作　　者：马忠臣[1] 杨长颖 马延全 

机构地区：[1]沈阳有色金属研究院,辽宁沈阳110141

出　　处：《有色矿冶》2017年第6期27-30,共4页Non-Ferrous Mining and Metallurgy

摘　　要：通过对难选深度氧化铅银矿石的选别工艺研究,确定了磨矿细度-0.074mm占80%、调整剂为碳酸钠、硫化剂为硫化钠、分散剂为水玻璃、组合捕收剂为丁基黄药+丁铵黑药、起泡剂为松醇油等的工艺条件;小型闭路试验采用一次粗选、两次精选、三次扫选的工艺流程,获得了铅精矿含铅48.72%,含银765.31g/t,铅回收率87.07%,银回收率80.10%的较高选别指标。Through the research on the flotation process of a refractory silver bearing deeply oxidized lead ore,dressing conditions of the grinding fineness-0.074 mm rage of 80%,the regulator sodium carbonate,vulcanizing agent sodium sulfide,dispersant sodium silicate,a combined collector butyl xanthate and ammonium dibutyl dithiophosphate and frother terpineol were determined.By adopting the closed circuit flotation flowsheet of single-stage roughing,two-stage cleaning and three-stage scavenging,better dressing indexes of the lead concentrate containing 48.72% of Pb and 765.31 g/t of Ag,lead and silver recovery of87.07% and 80.10%,were obtained respectively.

关 键 词：硫化剂用量 硫化时间 组合捕收剂 

分 类 号：TD923[矿业工程—选矿]