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The 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 extraction phosphoric acid. As a result, products containing 56,91-59,95% P2O5 and 14,21-11,54% N were obtained, while reducing fluorine from 0,11% to 0,01% and sulfates from 0,24% to 0,02%. The resulting products are completely water-soluble nitrogen-phosphorus fertilizers and are used as fertilizers for growing crops by drip irrigation and hydroponics. Ключевые слова: экстракционная фосфорная кислота, очистка кислоты, нейтрализация кислоты, удобрения, минеральные удобрения, фосфорные удобрения, азотно-фосфорные удобрения, фосфаты аммония.

INVESTIGATION OF THE PROCESS OF OBTAINING HIGH-QUALITY AMMONIUM PHOSPHATES FROM EXTRACT PHOSPHATE ACID BASED ON PHOSPHORITES OF CENTRAL KYZYLKUM