FIELD: petroleum industry. SUBSTANCE: demulsifier is added to the oil. Demulsifier is a product of interaction of oxidized vat synthetic fatty acids-C21 and above containing hydroxyacids (20 wt.-%, not less) with mono-, di- or triethanolamines at the molar ratio 1:1, at 70-80 C. EFFECT: improved method of petroleum treatment. 1 tbl
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SU457713A1 |
