离子交换法从钾长石提钾  

Extraction of Potassium from Potash Feldspar by Ion-exchange

作　　者：韩效钊[1] 姚卫棠[1] 胡波[1] 邓正涛[1] 

机构地区：[1]合肥工业大学化工学院,合肥230009

出　　处：《应用化学》2003年第4期373-375,共3页Chinese Journal of Applied Chemistry

基　　金：安徽省自然科学基金资助项目 ( 0 30 45 10 3)

摘　　要：The extraction of potassium from potash feldspar by NaCl, CaCl 2, SrCl 2 and BaCl 2 has been investigated as function of salt kind and calcination temperature. The phase compositions of potash feldspar and its calcinated, and water insoluble substances of NaCl, CaCl 2 co-calcinated potash feldspar were analyzed by XRD. The experiment results showed that the order of ion exchange extraction of potassium was Na +>Ca 2+>Sr 2+>Ba 2+, and at calcination temperature over the melting points of NaCl or CaCl 2, the two salts gave potassium ion-exchange degree >90% much greater than that calcinated with other salts.The extraction of potassium from potash feldspar by NaCl, CaCl 2, SrCl 2 and BaCl 2 has been investigated as function of salt kind and calcination temperature. The phase compositions of potash feldspar and its calcinated, and water insoluble substances of NaCl, CaCl 2 co-calcinated potash feldspar were analyzed by XRD. The experiment results showed that the order of ion exchange extraction of potassium was Na +>Ca 2+>Sr 2+>Ba 2+, and at calcination temperature over the melting points of NaCl or CaCl 2, the two salts gave potassium ion-exchange degree >90% much greater than that calcinated with other salts.

关 键 词：钾长石 钾 离子交换法 提取 反应机理 离子交换法 

分 类 号：TQ131.13[化学工程—无机化工] TQ028.33