FIELD: purification of petroleum raw materials. SUBSTANCE: petroleum raw materials are brought into contact with extragent, the process takes place in mixer having acoustic emitter. Said raw materials and extragent are fed into said mixer by separate streams, volume ratio of extragent and raw materials being 0.1-0.5:1. Thus obtained refined and extract solutions are separated in settling tank. Said refined solution is affected by additional purification in extract column. EFFECT: improves efficiency of the method. 1 dwg, 8 tbl
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