复分解生产硫酸钾铵工艺条件的实验研究  

Experimental study on technical conditions of producing potassium ammonium sulfate

作　　者：赵红坤[1] 王鸿显[1] 赵天源[2] 李伟然[2] 

机构地区：[1]商丘师范学院化学系,河南商丘476000 [2]郑州工业大学化工学院,河南郑州450002

出　　处：《商丘师范学院学报》2001年第2期79-82,共4页Journal of Shangqiu Normal University

摘　　要：K+,NH+4 ∥SO2 -4 ,Cl-H2 O四元体系相图为基础 ,研究了原料配比、加料顺序对产品mK2 SO4 ·(NH4 ) 2 SO4 中m值的影响规律 ,结果表明 :( 1)混合加料时 ,欲使K2 SO4 达到一级品 ,K2 Cl2 与 (NH4 ) 2 SO4 的质量之比必须大于 0 8,( 2 )先加K2 Cl2 ,液相中K+指数较高 ,K2 Cl2 收率低 ,但产品中Cl-指标可达到要求 ,先加 (NH4 ) 2 SO4 ,情况则相反 ,可采取调整加料顺序的方法制定出配料比较低、转化率高、质量好的最佳工艺条件 。According to K +,NH + 4∥SO 2- 4,Cl - H 2O phasediagram,it is discussed that the influence of ratio and sequence of resources on the value m in mK 2SO 4·(NH 4) 2SO 4 (1)When the mixture of K 2Cl 2 and (NH 4) 2SO 4 are added,K 2Cl 2∶(NH 4) 2SO 4 must be greater than 0.8 in order to make the product K 2SO 4 reach the first grade;(2)When KCl is added firstly,the content of K in mother liquid is higher and the yield of KCl is lower,but Cl - in product can be meet the demand;On the contrary,when(NH 4) 2SO 4 is added firstly,the results is inverse.So we come to conclusion that the optimal technical conditions producing K 2SO 4 of higher yield and quality will be attained by adjusting the sequence of K 2Cl 2 and (NH 4) 2SO 4 added.

关 键 词：原料配比 加料顺序 硫酸钾铵 生产工艺 复分解法 转化率 硫酸铵 氯化钾 

分 类 号：TQ125.14[化学工程—无机化工]