RU93053247A - METHOD OF OBTAINING COMPOSITE PREMI-PORATIVE MEMBRANES - Google Patents

METHOD OF OBTAINING COMPOSITE PREMI-PORATIVE MEMBRANES

Info

Publication number
RU93053247A
RU93053247A RU93053247/04A RU93053247A RU93053247A RU 93053247 A RU93053247 A RU 93053247A RU 93053247/04 A RU93053247/04 A RU 93053247/04A RU 93053247 A RU93053247 A RU 93053247A RU 93053247 A RU93053247 A RU 93053247A
Authority
RU
Russia
Prior art keywords
membranes
diaminodiphenyl
mixture
sulfonic acid
porative
Prior art date
Application number
RU93053247/04A
Other languages
Russian (ru)
Other versions
RU2074020C1 (en
Inventor
Ю.Э. Кирш
Ю.А. Федотов
С.И. Семенова
В.Т. Смекалов
Н.Н. Смирнова
П.А. Вдовин
С.Ф. Тимошов
В.П. Дубяга
А.А. Поворов
Ju.Eh. Kirsh
Ju.A. Fedotov
S.I. Semenova
V.T. Smekalov
N.N. Smirnova
P.A. Vdovin
S.F. Timoshov
V.P. Dubjaga
A.A. Povorov
Original Assignee
Акционерное общество "Полимерсинтез"
Aktsionernoe Obshchestvo "Polimersintez"
Filing date
Publication date
Application filed by Акционерное общество "Полимерсинтез", Aktsionernoe Obshchestvo "Polimersintez" filed Critical Акционерное общество "Полимерсинтез"
Priority to RU93053247A priority Critical patent/RU2074020C1/en
Priority claimed from RU93053247A external-priority patent/RU2074020C1/en
Publication of RU93053247A publication Critical patent/RU93053247A/en
Application granted granted Critical
Publication of RU2074020C1 publication Critical patent/RU2074020C1/en

Links

Claims (1)

Изобретение относится к способу получения композитных первапорационных мембран, используемых для дегидрации спиртов, в частности, изопропанола и может быть использовано в химической промышленности. Способ получения композитных первопарационных мембран путем нанесения на подложку водного раствора полимера с добавками с последующей сушкой, при этом в качестве полимера используют ароматические полиамиды на основе или 4,4'-диаминодифенил-2,2'-сульфокислоты и изофталевого хлорингидрида или смеси изофталевого и терефталевого хлорангидрида, содержащий не более 50 мол.% последнего в смеси, или смеси 4,4'-диаминодифенил-2,2'-сульфокислоты и 4,4'-диаминодифенил-2-сульфокислоты, содержащей последнего не более 50 мол.%, а в качестве добавки - алифатические полиамины при массовом соотношении алифатического полиамина к ароматическому полиамиду, равном 1:(2-10).The invention relates to a method for producing composite pervaporation membranes used for the dehydration of alcohols, in particular, isopropanol, and can be used in the chemical industry. The method of obtaining composite primary vaporization membranes by applying to the substrate an aqueous solution of a polymer with additives, followed by drying, with aromatic polyamides based on either 4,4'-diaminodiphenyl-2,2'-sulfonic acid and isophthalic chlorine hydride or a mixture of isophthalic and terephthalic acid chloride, containing not more than 50 mol.% of the latter in a mixture, or a mixture of 4,4'-diaminodiphenyl-2,2'-sulfonic acid and 4,4'-diaminodiphenyl-2-sulfonic acid, containing the latter not more than 50 mol.%, and as an additive - aliphatic Kie polyamines with a mass ratio of aliphatic polyamine to aromatic polyamide, equal to 1: (2-10).
RU93053247A 1993-11-22 1993-11-22 Method of preparing pervaporation membrane RU2074020C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93053247A RU2074020C1 (en) 1993-11-22 1993-11-22 Method of preparing pervaporation membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93053247A RU2074020C1 (en) 1993-11-22 1993-11-22 Method of preparing pervaporation membrane

Publications (2)

Publication Number Publication Date
RU93053247A true RU93053247A (en) 1996-08-10
RU2074020C1 RU2074020C1 (en) 1997-02-27

Family

ID=20149637

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93053247A RU2074020C1 (en) 1993-11-22 1993-11-22 Method of preparing pervaporation membrane

Country Status (1)

Country Link
RU (1) RU2074020C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2519377C9 (en) * 2008-08-05 2015-03-20 Полимерс СРС Лимитед Functionalised thin-film polyamide membranes
CN113617233B (en) * 2020-05-09 2024-05-31 浙江迪萧科技有限公司 Preparation method of novel nano-structure composite film

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