Patent ID: 8193119
Filing Date: 2012-06-05
Classification: A01N,C05B,C05G

Abstract:
1. A process for the manufacture of an aqueous fungicide, bactericide and fertilizer solution comprising the following steps: (1) dissolving phosphorous acid in phosphoric acid to form a solution of an acid mixture; (2) reacting the acid mixture of step (1) with an aqueous potassium hydroxide solution at a temperature of about 65° C. to about 260° C. in a continuous reactor while maintaining the ratio of potassium to phosphorus in a molar ratio of about 1:1 to about 2:1 thereby forming a reaction mixture comprising potassium phosphates, potassium polyphosphates, potassium phosphites, and potassium polyphosphites and potassium phosphate phosphite copolymers; and (3) cooling the reaction mixture rapidly at least 1° C. to 60° C., to below about 35° C. to about 65° C.