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2 452 731

(13)

(51)

IPC

C07D301/32(2006-01-01)

(21) (22)

Application

2009127748/04, 2007-12-18

(24)

Start date

2007-12-18

(22)

Actual filing date

2007-12-18

(45)

Published

2012-06-10

(72)

Inventor

Bekkers Jokhannes Gerkhardus JosefDen Bustert Jokhannes Lendert Villem KornelisVagstaff Najdzhel

(73)

Holder

Shell Internehshnl Riserch Maatskhappij B.V.

METHOD OF REMOVING POLY(PROPYLENE OXIDE) FROM PROPYLENE OXIDE THROUGH MEMBRANE SEPARATION Russian patent published in 2012 - IPC C07D301/32

Abstract RU 2452731 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method of removing poly(propylene oxide) from propylene oxide through membrane separation. The membrane used is a nonporous membrane made from polysiloxane containing repeating units of formula: -Si (R) (R')-O-, where R and R' denote hydrogen or a hydrocarbon group selected from alkyl, aralkyl, cycloalkyl, aryl and alkaryl.

EFFECT: improved method.

8 cl, 2 tbl, 1 dwg, 3 ex

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RU 2 452 731 C2

Authors

Bekkers Jokhannes Gerkhardus Josef

Den Bustert Jokhannes Lendert Villem Kornelis

Vagstaff Najdzhel

Dates

2012-06-10—Published

2007-12-18—Filed