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2 470 006

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(51)

IPC

C07C43/11(2006-01-01)

C07C41/06(2006-01-01)

(21) (22)

Application

2011139053/04, 2011-09-23

(24)

Start date

2011-09-23

(22)

Actual filing date

2011-09-23

(45)

Published

2012-12-20

(72)

Inventor

Shpantseva Ljudmila Vasil'EvnaAksenov Viktor IvanovichTjulentseva Ljudmila Evgen'EvnaElagina Al'Bina Valer'EvnaKomarov Jurij AndreevichChibizov Sergej Vasil'Evich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

METHOD OF PRODUCING DIALKYL ESTERS OF ETHYLENE GLYCOL Russian patent published in 2012 - IPC C07C43/11 C07C41/06

Abstract RU 2470006 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing dialkyl esters of ethylene glycol of formula (ROCH₂-CH₂OR'), where R is tert-butyl, R' is alkyl(C₂-C₄), which can be used as catalyst modifiers for polymerisation of diene hydrocarbon. The method involves reacting ethylene glycol or monoalkyl ester of ethylene glycol and isobutene in the presence of a catalyst - acidic sulphocationite, at temperature of 30-80°C and pressure in a straight-flow reactor with molar ratio of ethylene glycol (monoalkyl ester of ethylene glycol) to isobutene equal to 1.0:(1.1-2.5) and volume rate of feeding material of 1.0-6.0 h^-1. As a rule, the monoalkyl ester of ethylene glycol used is monoethyl ester monobutyl ester of ethylene glycol.

EFFECT: method enables to obtain desired products with high output using a simple technique.

2 cl, 9 ex, 1 tbl, 1 dwg

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RU 2 470 006 C1

Authors

Shpantseva Ljudmila Vasil'Evna

Aksenov Viktor Ivanovich

Tjulentseva Ljudmila Evgen'Evna

Elagina Al'Bina Valer'Evna

Komarov Jurij Andreevich

Chibizov Sergej Vasil'Evich

Dates

2012-12-20—Published

2011-09-23—Filed