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

Abstract RU 2289563 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-hydrocarbon fraction is subjected to thermal dimerization at 20-55°C followed by fractionation on two distillation columns. From the first distillation column with still temperature 70-95°C and having no reflux, light hydrocarbons are withdrawn in the form of distillate. Further, reaction mixture is routed to the second, vacuum degassing column, wherein residual amounts of C₅-C₆-hydrocarbons are produced at still temperature 35-115°C and pressure 500-620 mm Hg.

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

1 tbl, 3 ex

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RU 2 289 563 C2

Authors

Elagina Galina Sergeevna

Kirjukhin Aleksandr Mikhajlovich

Dates

2006-12-20—Published

2004-12-07—Filed