Title: Middle concentrate compound potassium sulfate fertilizer and its producing method
Application Number: 99112315 Application Date: 1999.07.13
Publication Number: 1280111 Publication Date: 2001.01.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05D1/02,C05G1/00
Applicant(s) Name: Li Shouyi Address: 276016
Inventor(s) Name: Shen Cunling, Zhang Hongjiang
Attorney & Agent: liu wei
Abstract:
     The present invention relates to a compound chemical fertilizer and its production technology. The compound fertilizer has a total azophoska content of 25-35 % and is produced through the reaction of excessive concentrated sulfuric acid and KCI to produce KHSO4, further reaction with phosphate rock powder pulp, neutralization with ammonia, pulp spraying and pelletizing. The compound fertilizer contains also trace elements beneficial to improving soil. The production process of the present invention has low production cost, no sludge producing phosphoric acid production process, and reduced environmental pollution.
Time: 4
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