METHOD OF PRODUCING FERTILISER WITH MICRONUTRIENT ELEMENTS Russian patent published in 2010 - IPC C05B1/00 C05D9/02 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to a method of producing phosphate fertiliser. The method of producing phosphate fertiliser involves obtaining a first portion of phosphate fertiliser, involving addition of a solid micronutrient element or several micronutrient elements to phosphoric acid in a reactor while heating and stirring to dissolve the micronutrient element and obtain concentrated acid; putting the concentrated acid and liquid ammonia into a cross-shaped tube reactor; and reacting the concentrated acid and ammonia to obtain ammonium phosphate; obtaining a second portion of phosphate fertiliser, involving combination of ammonia and phosphoric acid in a preliminary neutraliser; addition of the micronutrient element to phosphoric acid before combination of phosphoric acid with ammonia in a preliminary neutraliser; and feeding the first and second phosphate fertiliser portions into a granulator.

EFFECT: method enables to obtain fertiliser which gives a small amount of micronutrient elements to each plant uniformly in the equal amounts.

25 cl, 4 dwg, 1 tbl, 2 ex