酸泥浸铅渣中铋回收工艺研究  

Research on Recovery Process Bismuth from Acid Sludge Leaching Lead Slag

作　　者：巢冲 CHAO Chong(Guixi Smelter,Jiangxi Copper Corporation Limited,Guixi 335424,Jiangxi,China)

机构地区：[1]江西铜业集团有限公司贵溪冶炼厂,江西贵溪335424

出　　处：《铜业工程》2021年第3期54-57,共4页Copper Engineering

摘　　要：优化酸泥浸铅渣中铋的回收工艺,采用硫酸+NaCl为浸出介质,分别研究了各个浸出过程工艺参数的影响,确定了氯盐酸浸最佳工艺参数为:浸出酸度为110 g/L,氯离子浓度为130 g/L,液固比为4∶1,反应温度为85℃,反应时间为2h;中和沉铋最佳工艺参数:pH值为2.5,温度为60℃,时间为1h,可实现酸泥浸铅渣中铋的有效浸出和富集。The recovery process of bismuth in lead slag with sulfuric acid,the influence of the process parameters were studied,and the best process parameters of chloride hydrochloride acid were determined as follows:leaching acidity is 110 g/L,chloride ion concentration is 130 g/L,liquid-solid ratio is 4∶1,reaction temperature is 85℃,reaction time is 2h;the value of the neutralized bismuth:the pH is 2.5,the temperature is 60℃,the time is 1h,which can realize the effective leaching and enrichment of bismuth from the acid sludge leaching lead slag.

关 键 词：酸泥浸铅渣 铋 浸出 中和 富集 

分 类 号：TD954[矿业工程—选矿]