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RU2000113064A - METHOD FOR PRODUCING COMPLEX CELLULOSE ETHERS - Google Patents

METHOD FOR PRODUCING COMPLEX CELLULOSE ETHERS

Info

Publication number
RU2000113064A
RU2000113064A RU2000113064/04A RU2000113064A RU2000113064A RU 2000113064 A RU2000113064 A RU 2000113064A RU 2000113064/04 A RU2000113064/04 A RU 2000113064/04A RU 2000113064 A RU2000113064 A RU 2000113064A RU 2000113064 A RU2000113064 A RU 2000113064A
Authority
RU
Russia
Prior art keywords
cellulose ethers
producing complex
complex cellulose
thionyl chloride
cellulose esters
Prior art date
Application number
RU2000113064/04A
Other languages
Russian (ru)
Other versions
RU2186784C2 (en
Inventor
Владимир Григорьевич Шабалин
Михаил Матвеевич Чемерис
Надежда Андреевна Чемерис
Руслан Борисович Саньков
Николай Юрьевич Гузеев
Вадим Владимирович Коньшин
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 RU2000113064A priority Critical patent/RU2186784C2/en
Priority claimed from RU2000113064A external-priority patent/RU2186784C2/en
Publication of RU2000113064A publication Critical patent/RU2000113064A/en
Application granted granted Critical
Publication of RU2186784C2 publication Critical patent/RU2186784C2/en

Links

Claims (1)

Способ получения сложных эфиров целлюлозы путем обработки древесины ацилирующей смесью, включающей трифторуксусную кислоту, с последующим выделением целевого продукта, отличающийся тем, что для получения каждого из сложных эфиров целлюлозы в ацилирующую смесь вводят одну из карбоновых кислот общей формулы CnC2n+1COOH, где n= 1-7, и тионилхлорид при молярном соотношении карбоновая кислота: тионилхлорид: трифторуксусная кислота равном 0,020-0,030: 0,020-0,065: 0,14-0,20, а затем осуществляют экстракцию метанолом с дальнейшей обработкой надуксусной кислотой.A method of producing cellulose esters by treating wood with an acylating mixture comprising trifluoroacetic acid, followed by isolation of the target product, characterized in that one of the carboxylic acids of the general formula C n C 2n + 1 COOH is introduced into the acylating mixture to produce each of the cellulose esters where n = 1-7, and thionyl chloride at a molar ratio of carboxylic acid: thionyl chloride: trifluoroacetic acid equal to 0.020-0.030: 0.020-0.065: 0.14-0.20, and then extraction is carried out with methanol and further treated with peracetic acid .
RU2000113064A 2000-05-25 2000-05-25 Cellulose ester production process RU2186784C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000113064A RU2186784C2 (en) 2000-05-25 2000-05-25 Cellulose ester production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000113064A RU2186784C2 (en) 2000-05-25 2000-05-25 Cellulose ester production process

Publications (2)

Publication Number Publication Date
RU2000113064A true RU2000113064A (en) 2002-05-10
RU2186784C2 RU2186784C2 (en) 2002-08-10

Family

ID=20235091

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000113064A RU2186784C2 (en) 2000-05-25 2000-05-25 Cellulose ester production process

Country Status (1)

Country Link
RU (1) RU2186784C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2282635C1 (en) * 2005-07-22 2006-08-27 Государственное образовательное учреждение высшего профессионального образования "Алтайский государственный технический университет им. И.И. Ползунова" (АлтГТУ) Method for production of cellulose ester with aminoacetic acid

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1419987A1 (en) * 1985-06-07 1988-08-30 Алтайский государственный университет Method of producing cellulose acetate
SU1525168A1 (en) * 1987-03-04 1989-11-30 Алтайский государственный университет Method of obtaining cellulose esters
EP0522009A1 (en) * 1990-03-19 1993-01-13 Eastman Chemical Company Process for preparing cellulose esters
US5973139A (en) * 1998-02-06 1999-10-26 Eastman Chemical Company Carboxylated cellulose esters

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