钨冶炼溶液体系的非均匀化规律研究  

Study on Non-uniformity Law in Tungsten Smelting Solution System

作　　者：万林生[1] 孙丽[1] 杨树生[2] 陈玲[1] 龚丹丹[1] 李红超[1] 

机构地区：[1]江西理工大学冶金与化学工程学院,江西赣州341000 [2]鑫达金银开发中心,北京100038

出　　处：《稀有金属与硬质合金》2012年第1期5-9,共5页Rare Metals and Cemented Carbides

摘　　要：研究了钨冶炼中钨酸钠溶液、钨酸铵溶液、解吸剂溶液三种溶液体系的非均匀化规律。结果表明,WO24-较Cl-的非均匀化程度大,且溶液体系的非均匀化速率均呈现先上升后下降的趋势,摩尔质量较小的OH-非均匀化现象并不明显。分析指出,WO24-、Cl-和OH-的摩尔质量/离子半径比越大,其溶液的非均匀化程度也越大;粘度大的溶液非均匀化速率较慢。The non-uniformity law was studied in tungsten smelting solution systems such as sodium tung- state solution, ammonium tungstate solution and strippant solution. The results show that WO4^2- has a greater non-uniformity degree than Cl^- ,and non-uniformity rate first increases and then decreases for all the three solution systems. The non-uniformity phenomenon is not obvious for OH^- of a smaller molar mass. For WO4^2- ,Cl^- and OH^- ,the greater the ratio of molar mass to ionic radius,the greater the non-uniformity degree of the solution. And the non-uniformity rate is much slower for the solution of large viscosity.

关 键 词：钨冶炼 溶液体系 非均匀化 浓度 粘度 

分 类 号：TF841.1[冶金工程—有色金属冶金]