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2 289 564

(13)

(51)

IPC

C07C2/42(2006-01-01)

C07C13/61(2006-01-01)

(21) (22)

Application

2004135838/04, 2004-12-07

(24)

Start date

2004-12-07

(22)

Actual filing date

2004-12-07

(45)

Published

2006-12-20

(72)

Inventor

Elagina Galina SergeevnaKirjukhin Aleksandr MikhajlovichSaljakhov Rafail Saljakhovich

(73)

Holder

Zao Neftekhimicheskij Zavod"

PROCESS FOR PRODUCING DICYCLOPENTADIENE FROM C-PYROLYSIS FRACTION Russian patent published in 2006 - IPC C07C2/42 C07C13/61

Abstract RU 2289564 C2

FIELD: petrochemical processes.

SUBSTANCE: invention is directed on synthesis of dicyclopentadiene used in manufacture of ethylene-propylene-diene rubbers, resins, polymers, etylidenenorbornene, pesticides, modified vegetable oils, and antiknock fuels. For that, C₅-pyrolysis fraction is subjected to dimerization at heating to 30-80°C followed by fractionation and recovery of dicyclopentadiene concentrate. Concentrate is monomerized at 165-180°C in presence of alkyl-substituted phenols and resulting cyclopentadiene is subjected to redimerization at 40-60°C.

EFFECT: simplified process, reduced power consumption, and improved workability.

1 tbl, 2 ex

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RU 2 289 564 C2

Authors

Elagina Galina Sergeevna

Kirjukhin Aleksandr Mikhajlovich

Saljakhov Rafail Saljakhovich

Dates

2006-12-20—Published

2004-12-07—Filed