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2 186 051

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IPC

(21) (22)

Application

2000127233/04, 2000-10-30

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Start date

2000-10-30

(22)

Actual filing date

2000-10-30

(45)

Published

2002-07-27

(72)

Inventor

Nurullina E.V.Solov'Eva N.B.Samuilov Ja.D.Liakumovich A.G.Lekareva V.S.Pak Jun SokLi Ki Va

(73)

Holder

Tsentr Po Razrabotke Ehlastomerov Kazanskogo Gosudarstvennogo Tekhnologicheskogo Universiteta

METHOD FOR PRODUCTION OF DICYCLOPENTADIENE FROM C5 FRACTION OF PYROLYSIS HYDROCARBONS Russian patent published in 2002 - IPC

Abstract RU 2186051 C1

FIELD: petrochemical processes. SUBSTANCE: process involves dimerization of C5 fraction at heating followed by fractionation and isolation of light hydrocarbons and dicyclopentadiene concentrate. The latter is subjected to splitting into monomers at 180-210 C in presence of high-boiling solvent and polymerization inhibitor. Resulting cyclopentadiene is then dimerized at 50-60 C into 99.5-100% pure dicyclopentadiene, conversion 90-99%. EFFECT: increased purity of product, simplified process due to lesser number of stages, and considerably lowered power consumption. 2 tbl, 2 ex

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RU 2 186 051 C1

Authors

Nurullina E.V.

Solov'Eva N.B.

Samuilov Ja.D.

Liakumovich A.G.

Lekareva V.S.

Pak Jun Sok

Li Ki Va

Dates

2002-07-27—Published

2000-10-30—Filed