Title: Solid-state CO2 gas fertilizer and its preparing process
Application Number: 98115369 Application Date: 1998.07.02
Publication Number: 1240777 Publication Date: 2000.01.12
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05D7/00
Applicant(s) Name: Tao Shirong Address: 730050
Inventor(s) Name:
Attorney & Agent: tao tao
Abstract:
     A solid-state CO2 gas fertilizer contains solid acid and ammonium hydrogen carbonate in a weight ratio of 1 : (1.2-1.3). Said solid acid is prepared through mixing lignite or weathered coal with powdered phosphorus ore in a weight ratio of 10 : 1 and the reaction of obtained mixture with the mixture of nitric acid (1 pts. wt.) and sulfuric acid (100 pts. wt.) in weight ratio of 1.8 : 1 at ordinary temp for 5-10 min while stirring. The concentration of said acid mixture is 70-75%. Its advantages are convenient storage and transportation, high safety, low cost and convenient application.
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