METHOD AND COMPOSITION FOR OBTAINING ECOLOGICALLY SAFE OIL PLASTICIZER

摘要

1. A method and composition for producing ecologically safe oil plasticizer comprising selective solvent deasphalting purification and isolation of residual extract with subsequent purification of the residual extract from polycyclic aromatic hydrocarbons by liquid extraction, characterized in that for carrying out the solvent extraction process extract residual selective solvent composition is used: acetanilide dissolved in dimethylformamide or dimethylsulfoxide in the following ratio com nents, wt.%: 2. A method according to claim 1, characterized in that the residual extract liquid was purified by extraction with a selective solvent at a weight ratio of the selective solvent: residual extract equal to 12: 1 and a temperature of 50-60 ° C.