FIELD: petroleum chemistry. SUBSTANCE: oil and petroleum products are treated by laser irradiation with frequency 4.76 10 - 4.76 10('14) Hz with power 0.02 W, at exposition from 16 s to 15 min with intervals between laser irradiation effect from 25 s to 6 min following by reprocessing or use of product prepared. EFFECT: improved method of treatment.
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