【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 94%以上更多还原

【Abstract】 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%.更多还原