Title: Production process of agricultural potassium sulfate
Application Number: 97112031 Application Date: 1997.05.16
Publication Number: 1168350 Publication Date: 1997.12.24
Approval Pub. Date: Granted Pub. Date: 2000.01.19
International Classifi-cation: C01D5/08,C05D1/02
Applicant(s) Name: Huazhong Agriculture Univ. Address: 430070
Inventor(s) Name: Song Nengwen
Attorney & Agent: LIN XIANGMING
Abstract:
     The present invention features that potassium chloride and ammonium sulfate as material are pre-treated separately before conversion reaction into pre-treated high-temperature reaction liquids, which are then mixed, cooled and crystallized to separate potassium sulfate as main product; and after filtration, evaporation, is obtained potassium ammonium chloride as by product. The present invention reach a conversion rate of potassium chloride up to 70%.
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