The results of studies on the production of sodium cremofluoride from extraction phosphoric acid based on phosphorites of the Central Kyzylkum Mountains using solutions of sodium sulfate and hydrogen phosphate are presented. Optimal technological parameters for the separation of sodium silicofluoride from acid have been established, at which the degree of fluorine precipitation from 40.29 to 41.44% is achieved. The conditions for settling sodium silicofluoride and its separation have been identified. The resulting product contains 91.28% Na2SO4 and 99.28% Na2SiF6 with Na2HPO4.
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