Title: Salting out process for producing potassium sulfate
Application Number: 96109835 Application Date: 1996.09.20
Publication Number: 1150121 Publication Date: 1997.05.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01C1/16,C01D5/02
Applicant(s) Name: Ziguang (Group) Corp., Qinghua Address: 100084
Inventor(s) Name: Yin Hong, Long Wenjie
Attorney & Agent: ZHANG RUIPU
Abstract:
     A salting-out process for preparing potassium sulfate from sulfuric acid, potassium chloride and ammonia includes such steps as low-temp reaction of potassium chloride on sulfuric acid to generate potassium hydrogen sulfate, addition of potassium chloride to prepare its aqueous solution, low-temp. neutralization with ammonia to generate potassium sulfate and ammonium chloride and water washing to separate potassium sulfate. Its advantages are high transform rate of K and quality of product, low corrosion to apparatus, and low technological temp., energy consumption and cost.
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