氨溶高纯仲钨酸铵的生产工艺参数研究  

Research on Production Process Parameters of High-purity Ammonium Paratungstate by Ammonia Dissolving

作　　者：章小兵[1] 万林生[2] 邹爱忠 

机构地区：[1]中国瑞林工程技术有限公司,江西南昌330002 [2]江西理工大学,江西赣州341000 [3]章源钨业有限公司,江西崇义341200

出　　处：《有色冶金设计与研究》2012年第5期20-22,25,共4页Nonferrous Metals Engineering & Research

摘　　要：热离解后氨溶与直接氨溶研究表明,APT固体在280±5℃热离解50 min,加1∶3的氨水溶液200 mL在95℃溶解6 h,浸出率为85.1%,离解时间对S(Fe)/WO3影响不大,热离解后氨溶比直接氨溶溶出率要高,但是S(Fe)/WO3基本相同。The research on ammonia dissolving after thermal dissociation and direct ammonia dissolving shows that APT solid is thermally dissociated for 50 minutes at temperature of 280＋5℃, and then 1：3 ammonia solution of 200 mL is added to dissolve for 6 hours at temperature of 95℃, leaching efficiency is 85.1%. Dissociation time has a little influence on S （Fe）/WO3. Leaching efficiency of ammonia dissolving after thermal dissociation is higher than that of direct ammonia dissolving, but amounts of S（Fe）/WO3 are basically similar.

关 键 词：仲钨酸铵 氨溶 热离解 

分 类 号：TF841.1[冶金工程—有色金属冶金]