Title: Combined production process of potassium nitrate and nitrogenous potash complex fertilizers
Application Number: 90105899 Application Date: 1990.10.06
Publication Number: 1049840 Publication Date: 1991.03.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05C5/02,C05G1/00
Applicant(s) Name: Sichuan Univ. Address: 610054
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The present invention uses industrial or agricultural ammonium nitrate and potassium chloride as the raw material, and the raw material is added into the mother solution compounded by use of H2O, NH4, NO3, NH4, Cl, KNO3 and other salts, through double decompostion reaction, so as to prepare a high-purity loose type potassium nitrate and nitrogenous potash complex fertilizer. The present invention also adopts the advanced equipments of spray concentration tower and wetted wall cooling crystallized, and thus overcomes the deficiency that concentrated mother solution seriously corrodes the equipments.
Time: 5
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