硫酸钾的萃取制备  

Preparation of K_2SO_4 by Extraction

作　　者：周素华[1] 李皖[1] 倪永康[1] 曾祥钦[1] 

机构地区：[1]贵州工业大学,贵阳550003

出　　处：《贵州化工》1998年第1期12-14,共3页Guizhou Chemical Industry

摘　　要：有机胺在强酸溶液中生成的铵离子，先于SO4-离子之前络合Cl-离子，因而胺可从KCl和H2SO4溶液中萃取出H+和Cl-离子，由此可得到K2SO4。采用分子量在250～600之间的叔胺和恰当的稀释剂做革取相，Cl-离子萃取率可达95％以上。In a solution of strong aicd,amine can form ammonium ion which can complex Cl- ion easier than SO2-4 ion,therefore amine can extract H+ ion and Cl- ion from the solution of KCl and H2SO4,K2SO4 is obtained. The extract phase is composed of dilution agent and tretamine with 250- 600 molecular weight, the extract efficency of Cl- ion is attained over 95 %.

关 键 词：萃取 硫酸钾 胺 叔胺 

分 类 号：TQ131.13[化学工程—无机化工] TQ125.14