Title: Chloroless compound fertilizer using potassium chloride as raw material
Application Number: 91109650 Application Date: 1991.10.07
Publication Number: 1071408 Publication Date: 1993.04.28
Approval Pub. Date: Granted Pub. Date: 1998.07.22
International Classifi-cation: C05G1/00
Applicant(s) Name: Dalian Chemical Industry Co. Address: 116032
Inventor(s) Name:
Attorney & Agent: GUO LIHUA
Abstract:
     In this invention, a definite ratio of potassium chloride and acid are reacted at 70-120 deg.C for 0.5-2 hr to form potassium bisulfate, and anmonia gas is passed thru said product at atmospheric pressure until a pH value of 6.5-7 is achieved. Above-stated acid may be surfuric acid or mixed acid of sulfuric acid and phosphoric acid. Their ratio with potassium chloride is that potassium chloride: sulfuric acid is equal to 1:1.2-1.8 (mole ratio).
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