FIELD: waste treatment.
SUBSTANCE: invention relates to the purification of petroleum oils. A method for cleaning used motor mineral oils is proposed, which consists in heating the oil being cleaned to 80°C, adding an additive prepared from 2 vol. % of purified mineral oil, 1 vol. % monoethanolamine, solution of 1 vol. % carbamide in 2 vol. % ammonium hydroxide, the resulting mixture is stirred, heated to 100°C and settled for 20-24 hours.
EFFECT: proposed method makes it possible to simplify the process and improve the quality of cleaning used engine oil.
1 cl, 1 tbl
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