磷石膏废渣生产硫酸钾新工艺研究 Ⅱ 硫酸铵法制备硫酸钾新工艺  

A study on the new production process for potassiam sulfate from phosphogypsum Ⅱ. A new preparing process of potassium sulfate from ammonium sulfate

作　　者：黄岳元[1] 张粉艳[1] 赵天成[1] 陈启石[1] 

机构地区：[1]西北大学化学工程学系,陕西西安710069

出　　处：《西北大学学报（自然科学版）》2001年第5期399-402,共4页Journal of Northwest University（Natural Science Edition）

基　　金：陕西省教委重点科研计划基金资助项目 (GE982 37);西北大学科研基金资助项目 (KG972 16 )

摘　　要：开发了新的硫酸铵法制备硫酸钾工艺。用多因素正交试验法和单因素试验法研究了原料配比、反应温度、结晶温度、反应时间和结晶促进剂添加量等对原料转化率和产品质量的影响 ,找到了最优工艺条件。在此条件下 ,产品质量指标达 :K2 O≥ 48.4% ,Cl≤ 1 .6 % ;钾转化率达A new preparing process for K 2SO 4 from (NH 4) 2SO 4 was developed. The effects of the raw material mole ratio, reaction temperature,crystal temperature, time and crystal improver on the comversion of the raw material and the compoisition of products were studied through orthogonal experiment and individual experiments. Meanwhile, the optimal condtions were found. Under these conditions, the conversion of potassium was more than 94%,and the compositions of products were :K 2O≥48 4%,Cl≤1 6%.

关 键 词：硫酸铵法 硫酸钾 结晶促进剂 生产工艺 磷石膏废渣 无氯钾肥 原料配比 

分 类 号：TQ443.2[化学工程—化学肥料工业]