METHOD FOR PRODUCING NON-CARCINOGENIC AROMATIC PROCESS OIL Russian patent published in 2015 - IPC C10G21/06 C10G21/12

Abstract RU 2550823 C1

FIELD: chemistry.

SUBSTANCE: invention refers to a method for producing non-carcinogenic aromatic process oil containing a PCA extract of less than 3.0% according to the IP-346 method, involving purifying oil fractions of petroleum with selective solvents and recovering the extract, processing the extract additionally with a polar solvent and producing a raffinate as an end product; the polar solvent used is a mixture of a cyclic carbonate and a co-solvent, wherein the co-solvent is a substance or more than one substances specified in a group of: phenols, esters, nitriles, amides, lactames.

EFFECT: more effective method for producing the non-carcinogenic aromatic process oil with the high content of aromatic hydrocarbons and the low content of carcinogenic, mutagenic, toxic substances.

3 cl, 1 tbl, 8 ex

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RU 2 550 823 C1

Authors

Volkov Aleksandr Nikolaevich

Mazurin Oleg Anatol'Evich

Dates

2015-05-20—Published

2014-05-21—Filed