Title: Granular compound fertilizer and tech. made by part acidic phosphorus mine one step method
Application Number: 91112622 Application Date: 1991.12.30
Publication Number: 1063674 Publication Date: 1992.08.19
Approval Pub. Date: Granted Pub. Date: 1996.10.02
International Classifi-cation: C05B1/00,C05C9/00,C05D1/00,C05D9/02,C05G1/00
Applicant(s) Name: Zhengzhou Polytechnic College Address:
Inventor(s) Name:
Attorney & Agent:
Abstract:
     Granulated compound fertilizer prepared by a part of acidic phosphate mines one step method is a kind of taking nitrogen manure (urea, ammonium nitrate, etc), potash manure (potassium chloride or potassium sulfate), pondered rock phosphate and sulfuric acid (or phosphric acid, or sulfur phosphrous mixed acid) as raw materials, to prepare the compound fertilizer in a reactive granular making machine by one step. It is directly taking powdered rock phosphate as phosphate souree, to bland the preparation of potash manure and it's compounding with the nitrogen manure, potash manure into one body, saved the producing process of phosphate manure. It possesses features of less investment, cheap and easily obtainable raw materials, simple technology, low coot, highly fertilizer effect, etc.
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