FIELD: methods of processing soda-sulfate mixtures. SUBSTANCE: proposed method includes dissolving of mixture, treatment of it with settling reagent, separation of sodium sulfate crystals. Treatment of soda0sulfate mixture solution is performed by means of sulfuric acid at reduction of pH to 7.0- 5.8 at preliminary heating to temperature of 60 to 95 C. additional treatment of solution is effected at intensive mixing for at least 15 minutes followed by holding the solution at temperature of 85 to 108 C for at least 20 minutes. EFFECT: improved quality of sodium sulfate complying with State Standard and adaptable for manufacture of detergents. 2 cl, 1 tbl
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