A process for the extractive cleaning of the arrears and the high-boiling components of the refining erdoel

摘要

The subject of the invention is a method of extractive purification of prcts of crude oil processing, especially of residues, of heavy ends, extracts and used oils, from tars of asphaltenes and other compounds. PPThe process is conducted employing an extraction solvent and an additional substance having a limited miscibility with the extraction solvent. The substance constituting the additional solvent is appropriate for rapid obtaining of a distinct limit of phase separation.