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2 471 539

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(51)

IPC

B01D71/64(2006-01-01)

B01D71/62(2006-01-01)

B01D61/36(2006-01-01)

(21) (22)

Application

2011115925/05, 2011-04-25

(24)

Start date

2011-04-25

(22)

Actual filing date

2011-04-25

(45)

Published

2013-01-10

(72)

Inventor

Polotskaja Galina AndreevnaPuljalina Aleksandra Jur'EvnaGojkhman Mikhail JakovlevichPodeshvo Irina VladimirovnaTojkka Aleksandr Matveevich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Vysokomolekuljarnykh Soedinenij Ran

MEMBRANE FOR SEPARATION OF SPIRIT MIXES BY PERVAPORATION Russian patent published in 2013 - IPC B01D71/64 B01D71/62 B01D61/36

Abstract RU 2471539 C2

FIELD: process engineering.

SUBSTANCE: invention relates to membrane technologies, particularly, to making new membranes for spirit separation by pervaporation. New membrane is made from polybenzoxazinoimide with molecular weight of 50000 to 100000 Da,

and represents nonporous dense polymer 15-25 mcm-thick film.Invention allows directed separation of spirit mixes with separation factor (up to 19000).

EFFECT: high thermal stability, long service life.

6 ex

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RU 2 471 539 C2

Authors

Polotskaja Galina Andreevna

Puljalina Aleksandra Jur'Evna

Gojkhman Mikhail Jakovlevich

Podeshvo Irina Vladimirovna

Tojkka Aleksandr Matveevich

Dates

2013-01-10—Published

2011-04-25—Filed