Title: Method for preparation of potassium sulfate by the liquid phase convertion of potassium chloride and sulfuric acid
Application Number: 93107781 Application Date: 1993.07.05
Publication Number: 1097178 Publication Date: 1995.01.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B01D11/00,C01B7/03,C01C1/16,C01D5/02
Applicant(s) Name: Zhengzhou Polytechnic College, Zhengzhou Polytechn Address: 450002
Inventor(s) Name: Zhao Tianyuan, Ren Baozeng, Li Weiran, Zhao Tianyu
Attorney & Agent:
Abstract:
     The present invention relates to a preparation method of potassium sulfate by using liquid-phase conversion of potassium chloride and sulfuric acid. The potassium chloride is reacted in the sulfuric acid solution to obtain potassium bisulfate, and then the potassium bisulfate is converted into the potassium sulfate in an extracting agent, and the separated potassium sulfate is the invented product. Its extracting agent can be circularly used after being regenerated. The chlorinity content of the obtained potassium sulfate product is less than 1000 ppm, and its potassium oxide content is above 50%.
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