Extraction process

Details Extraction process Extraction process

C - Chemistry, Metallurgy

10

G

196/261

C10G 21/04 (2006.01) C10G 21/02 (2006.01)

Patent

CA 1140886

Abstract of the Disclosure The subject of the invention is a method of extractive purification of products from crude oil processing, especially of residues, of heavy ends, extracts and used oils, of asphaltenes tars and other compounds, in order to obtain raw materials suitable for the preparation, for example, of petroleum- origin cokes or as a purification step per se. The 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 chosen to provide rapid phase separation.

331417

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