METHOD OF PRODUCING PITCH FROM WASTE FRACTIONATION OF STILL RESIDUE OF STYRENE Russian patent published in 2019 - IPC C10C3/00 C08J11/02

Abstract RU 2687899 C2

FIELD: technological processes.

SUBSTANCE: invention relates to processing coal-tar pitch and is intended for increasing its output due to combined processing of rectification wastes of styrene and coal-tar pitch. During combined processing, which is carried out at temperature of 350–380 °C, obtaining high-temperature pitch with temperature softening T_p>100 °C, fuel oil and gas products.

EFFECT: raw material base for producing coal-tar pitch is expanded, and still residues of rectification of styrene are utilized.

1 cl, 3 ex

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RU 2 687 899 C2

Authors

Barnakov Chingiz Nikolaevich

Golubov Sergej Mikhajlovich

Dates

2019-05-16—Published

2018-11-01—Filed