FIELD: method of breaking of true oil emulsions containing mechanical impurities. SUBSTANCE: oil emulsion is mixed with low-boiling hydrocarbon liquid. Then, mixture is dispersed in hot aqueous solution of emulsion breaker with subsequent settling. In so doing, principle of foam demulsifying is used which is accomplished by mixing of oil emulsion with low-boiling hydrocarbon liquid under conditions promoting gas evolution and formation of foam structure. Emulsion foamed by this manner is dispersed into not aqueous solution if emulsion breaker to obtain full breakage of emulsion. Oil separation is accomplished fuller with reduction in oil of residual water and mechanical impurities. In additional, content of chloride salts in treated oil is considerably reduced. EFFECT: higher efficiency. 1 cl, 1 ex
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