Title: Reproduction extraction of potassium sulphate with industrial and agricultural waste
Application Number: 95116728 Application Date: 1995.09.22
Publication Number: 1132722 Publication Date: 1996.10.08
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01D5/00,C05G1/00,C12S3/04
Applicant(s) Name: Yang Guoqiang Address: 550003
Inventor(s) Name: Yang Guoqiang
Attorney & Agent: YU JUNHAN
Abstract:
     A process for producing potassium sulfate by regeneration and extraction of industrial and agricultural waste such as tobacco dregs, dust, bean stalk, corn cob and root includes such steps as calcining, steam fermentation, extracting solution of potassium oxide, reaction with sulfuric acid while heating, concentrating to semi-crystal, baking and purifying. Its advantages are simple technological route, low cost and no pollution.
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