用氯盐从铅银渣中浸出铅  

Leaching of Lead From Lead-silver Slag in Chloride System

作　　者：孙红燕[1,2] 森维 孔馨[1,2] 刘贵阳[1,2] 

机构地区：[1]红河学院理学院,云南蒙自661199 [2]云南省高校地方特色资源利用与新材料实验室,云南蒙自661199 [3]云南锡业集团(控股)有限责任公司,云南个旧661000

出　　处：《湿法冶金》2016年第2期110-112,共3页Hydrometallurgy of China

基　　金：云南省教育厅科学研究基金一般项目(2013Y068);红河学院"化学"云南省硕士点建设学科开放基金重点项目(HXZ1401);红河学院校级中青年学术骨干培养项目(2015GG0204)

摘　　要：研究了采用单因素条件试验和正交试验法,用氯化钠+氯化钙体系从云南某铅银渣中浸出铅。结果表明:影响铅浸出率的因素依次为NaCl-CaCl_2体系质量浓度>浸出温度>液固体积质量比>浸出时间;用220g/L NaCl+90g/L CaCl_2体系,在55℃、液固体积质量比20∶1条件下浸出55min,铅浸出率达93%以上。The lead in lead-silver slag was leached using sodium chloride-calcium chloride system by single factor experiment method and orthogonal experiment method.The results show that the order of influencing leaching rate of Pb is concentration of NaCl-CaCl2,leaching temperature,solid-to-liquid ratio and leaching time.The optimum leaching conditions are the system of 220g/L NaCl＋90g/L CaCl2,leaching temperature of 55 ℃,liquid-to-solid ratio of 20∶1and leaching time of 55 min.Under the optimal conditions,leaching ratio of Pb is over 93%.

关 键 词：铅银渣 氯盐体系 浸出 铅 

分 类 号：TF812[冶金工程—有色金属冶金]