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RU2000125611A - METHOD FOR PRODUCING MIXED COMPLEX CELLULOSE ETHERS - Google Patents

METHOD FOR PRODUCING MIXED COMPLEX CELLULOSE ETHERS

Info

Publication number
RU2000125611A
RU2000125611A RU2000125611/04A RU2000125611A RU2000125611A RU 2000125611 A RU2000125611 A RU 2000125611A RU 2000125611/04 A RU2000125611/04 A RU 2000125611/04A RU 2000125611 A RU2000125611 A RU 2000125611A RU 2000125611 A RU2000125611 A RU 2000125611A
Authority
RU
Russia
Prior art keywords
producing mixed
cellulose ethers
mixed complex
feedstock
complex cellulose
Prior art date
Application number
RU2000125611/04A
Other languages
Russian (ru)
Other versions
RU2186785C2 (en
Inventor
Вадим Владимирович Коньшин
Михаил Матвеевич Чемерис
Надежда Андреевна Чемерис
Владимир Григорьевич Шабалин
Original Assignee
Алтайский государственный технический университет им. И.И. Ползунова
Filing date
Publication date
Application filed by Алтайский государственный технический университет им. И.И. Ползунова filed Critical Алтайский государственный технический университет им. И.И. Ползунова
Priority to RU2000125611/04A priority Critical patent/RU2186785C2/en
Priority claimed from RU2000125611/04A external-priority patent/RU2186785C2/en
Application granted granted Critical
Publication of RU2000125611A publication Critical patent/RU2000125611A/en
Publication of RU2186785C2 publication Critical patent/RU2186785C2/en

Links

Claims (1)

Способ получения смешанных сложных эфиров целлюлозы, включающий обработку исходного сырья двумя ацилирующими агентами в среде трифторуксусной кислоты с последующим выделением, промывкой и сушкой целевого продукта, причем в качестве одного из ацилирующих агентов используют уксусный ангидрид, отличающийся тем, что в качестве исходного сырья используют древесные опилки, а в качестве другого ацилирующего агента используют одну из алифатических карбоновых кислот общей формулы CnH2n+1COOH, где n= 11-15, при этом выделение целевого продукта осуществляют экстракцией метанолом с обработкой надуксусной кислотой.A method of producing mixed cellulose esters, including processing the feedstock with two acylating agents in trifluoroacetic acid medium, followed by isolation, washing and drying of the target product, wherein acetic anhydride is used as one of the acylating agents, characterized in that wood sawdust is used as the feedstock and, as another acylating agent, one of the aliphatic carboxylic acids of the general formula C n H 2n + 1 COOH, where n = 11-15, is used, while the target product is isolated They are extracted with methanol and treated with peracetic acid.
RU2000125611/04A 2000-10-11 2000-10-11 Mixed cellulose esters production process RU2186785C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000125611/04A RU2186785C2 (en) 2000-10-11 2000-10-11 Mixed cellulose esters production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000125611/04A RU2186785C2 (en) 2000-10-11 2000-10-11 Mixed cellulose esters production process

Publications (2)

Publication Number Publication Date
RU2000125611A true RU2000125611A (en) 2002-08-10
RU2186785C2 RU2186785C2 (en) 2002-08-10

Family

ID=20240880

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000125611/04A RU2186785C2 (en) 2000-10-11 2000-10-11 Mixed cellulose esters production process

Country Status (1)

Country Link
RU (1) RU2186785C2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1025152A (en) * 1962-02-07 1966-04-06 Gevaert Photo Prod Nv Preparation of organic esters of polysaccharides
DE1443805B2 (en) * 1963-05-22 1974-05-02 Eastman Kodak Co., Rochester, N.Y. (V.St.A.) Process for the production of mixed cellulose esters ^
US3489743A (en) * 1969-01-02 1970-01-13 Eastman Kodak Co Process for the manufacture of cellulose esters and ethers of polycarboxylic acid
SU979362A1 (en) * 1981-04-30 1982-12-07 Латвийский Ордена Трудового Красного Знамени Государственный Университет Им.Петра Стучки Process for producing cellulose esters
SU1650649A1 (en) * 1989-04-20 1991-05-23 Алтайский государственный университет Method for obtaining mixed cellulose esters

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