FIELD: fat and oil production. SUBSTANCE: wastes of acid purification of fats and natural waxes are heated to 50-60 C. Then electrolyte (its quantity being 0.5-3 mass % of mass of origin material) and nonionic surfactant as demulsifier (its quantity being 0.2-1 mass % of mass of origin material) are added. The process is followed by heating to 80-90 C by uninterrupted mixing. EFFECT: improves efficiency of method.
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