新型硫化剂制备硫代钼酸盐研究  

Study on Preparation of Thiomolybdate with New Suifidizing Agent

作　　者：席晓丽[1] 张启修[1] 肖连生 龚柏凡[1] 

机构地区：[1]中南工业大学有色冶金系,湖南长沙410083

出　　处：《稀有金属与硬质合金》1999年第4期3-5,共3页Rare Metals and Cemented Carbides

摘　　要：采用新型硫化剂ＲＳ代替Ｎａ２Ｓ和ＮａＨＳ，从钨酸盐溶液中制取硫代钼酸盐。较系统地研究了硫化过程的各工艺参数，结果表明料液起始碱度８ ～１６ ｇ／Ｌ，游离Ｓ２ － 离子浓度４ ｇ／Ｌ，硫化ｐＨ 值＜ ９时，钼的萃取率可达９５ ％ 以上。A new sulfidizing agent instead of Na 2S and NaHS. has been used to prepare thiomolybdate from sodium tungstate solution. The process parameters in sulfidizing process has been investigated. When the concentration of sodium hydroxide in solution is 8-16 g/L, the concentration of free S 2- is 4 g/L, and the pH is less than 9, the extraction rate of molybdenum is more than 95%.

关 键 词：硫化剂 钨酸盐 硫代钼酸盐 制备 

分 类 号：TQ136.12[化学工程—无机化工]