OBTANING OF AMMONIUM PHOSPHATES HIGH-QUALITY FROM EXTRACTIVE PHOSPHORIC ACID ON THE BASIS OF CENTRAL KYZYKUM PHOSPHORITES

29.07.2022 International Scientific Journal "Science and Innovation". Series A. Volume 1 Issue 4

R. Najmiddinov , I. Shamshidinov , G. Qodirova , A. Nishonov & O. Sayfiddinov

Abstract. . This paper presents data on the study of the processes of obtaining high-quality water-soluble ammonium phosphates by partial purification of phosphoric acid during extraction and complete purification during ammonization of wet-process phosphoric acid. As a result, products containing 52% P2O5 and 12% N were obtained, while reducing the fluorine content to 0.8-1.0%. The resulting products are completely water-soluble nitrogen-phosphorus fertilizers and are used as fertilizers for growing crops by drip irrigation and hydroponics.

Keywords: phosphoric acid, wet-process phosphoric acid, fertilizers, mineral fertilizers, defluorinated fertilizers, complex fertilizers, nitrogen-phosphorus fertilizers, ammonium phosphate, monoammonium phosphate, diammonium phosphate.