METHOD OF PRODUCTION OF COMPOUND NITROGEN-PHOSPHORUS FERTILISER

摘要

FIELD: agriculture.;SUBSTANCE: method of production of compound nitrogen-phosphorus fertiliser comprises neutralising with ammonia of nitric acid with addition of phosphoric acid, and the solution of nitric acid and phosphorous are fed to the autoclave and then oxygen at a pressure of 0.5-0.6 MPa, and the resulting solution is neutralised with ammonia and sulphate aluminium is added.;EFFECT: invention enables to improve the economic efficiency of the process of production of compound nitrogen-phosphorus fertiliser.;1 ex