Title: Method for jointly preparing multiple compound fertilizers
Application Number: 87101529 Application Date: 1987.04.04
Publication Number: 1021513 Publication Date: 1988.10.19
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05G1/06
Applicant(s) Name: Shenyang Institute of Chemicals for Multipurpose U Address:
Inventor(s) Name:
Attorney & Agent: DU CHUNRONG YANG SHIQUAN
Abstract:
     It is a closed process of comprehensive utilization of the resources to prepare potassium dihydrogen phosphate, potassium ammonium biphosphate and tri-mixed fertilizer of nitrogen, phosphorus and potassium, together with a by-product of potassium fluosilicate. Using the phosphoric acid by wet process (or phosphoric acid by hot process dilute phosphoric acid made by burning phosphoric mud), potassium chloride, ammonia, and ammonium bicarbonate as raw material, by the action of alkyl tertiary amine.
Time: 7