离子交换法制取精制钨酸钠工艺研究  

A Technology of Preparing Sodium Tungstate with Ion-exchange Method

作　　者：万林生[1] 廖春发[1] 许秀莲[1] 郭年祥[1] 徐志峰[1] 邓庚凤[1] 

机构地区：[1]南方冶金学院,江西赣州341000

出　　处：《中国钨业》2001年第1期31-34,共4页China Tungsten Industry

摘　　要：采用717型强碱性阴离子交换树指 ,从钨酸钠溶液中吸附钨 ,并净化除去硅、磷、砷杂质 ,利用NaOH和化合物A的协同解吸作用 ,大幅度提高了负载WO42 -树脂的解吸率。在控制解吸液结晶程度的条件下 ,制取出了高纯钨酸钠。The paper present a technology of drawing tungsten from sodium tungstate solution by adopting No.707 alkali anion-exchange resin. Some impurities of Si、 P and As are removed by purification. Desorption ratio of load WO42- resin is increased greatly by the co-desorption of NaOH and compound A. High-purity sodium tungstate is prepared by controlling the crystal size of desorption solution.

关 键 词：钨酸钠 离子交换 解吸剂 协同解吸 

分 类 号：TF841.1[冶金工程—有色金属冶金]