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WO1993025584A3 - Process for activation of cellulose - Google Patents

Process for activation of cellulose Download PDF

Info

Publication number
WO1993025584A3
WO1993025584A3 PCT/US1993/005164 US9305164W WO9325584A3 WO 1993025584 A3 WO1993025584 A3 WO 1993025584A3 US 9305164 W US9305164 W US 9305164W WO 9325584 A3 WO9325584 A3 WO 9325584A3
Authority
WO
WIPO (PCT)
Prior art keywords
cellulose
water
acetic acid
activation
introducing
Prior art date
Application number
PCT/US1993/005164
Other languages
French (fr)
Other versions
WO1993025584A1 (en
WO1993025584A2 (en
Inventor
Melvin Glenn Mitchell
James Stafford Maginnis Jr
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to JP6501538A priority Critical patent/JPH08501326A/en
Priority to BR9306539A priority patent/BR9306539A/en
Priority to KR1019940704224A priority patent/KR950701649A/en
Priority to EP93921169A priority patent/EP0644901A1/en
Publication of WO1993025584A1 publication Critical patent/WO1993025584A1/en
Publication of WO1993025584A2 publication Critical patent/WO1993025584A2/en
Publication of WO1993025584A3 publication Critical patent/WO1993025584A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • C08B1/02—Rendering cellulose suitable for esterification
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B3/00—Preparation of cellulose esters of organic acids
    • C08B3/06—Cellulose acetate, e.g. mono-acetate, di-acetate or tri-acetate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Disclosed is a process comprising: A) introducing cellulose and water into an activation zone; B) introducing acetic acid and sulfuric acid into the activation zone; and C) subjecting the cellulose, water, acetic acid and a catalyst to an agitation in the range of 0.04 to 4.0 kilowatts per pound of the combined weight of the cellulose, water, acetic acid and sulfuric acid for a period of time of less than 10 seconds.
PCT/US1993/005164 1992-06-11 1993-06-01 Process for activation of cellulose WO1993025584A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6501538A JPH08501326A (en) 1992-06-11 1993-06-01 Cellulose activation method
BR9306539A BR9306539A (en) 1992-06-11 1993-06-01 Process for cellulose activation
KR1019940704224A KR950701649A (en) 1992-06-11 1993-06-01 PROCESS FOR ACTIVATION OF CELLULOSE
EP93921169A EP0644901A1 (en) 1992-06-11 1993-06-01 Process for activation of cellulose

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US89711392A 1992-06-11 1992-06-11
US897,113 1992-06-11

Publications (3)

Publication Number Publication Date
WO1993025584A1 WO1993025584A1 (en) 1993-12-23
WO1993025584A2 WO1993025584A2 (en) 1993-12-23
WO1993025584A3 true WO1993025584A3 (en) 1994-02-17

Family

ID=25407353

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1993/005164 WO1993025584A2 (en) 1992-06-11 1993-06-01 Process for activation of cellulose

Country Status (6)

Country Link
EP (1) EP0644901A1 (en)
JP (1) JPH08501326A (en)
KR (1) KR950701649A (en)
BR (1) BR9306539A (en)
CA (1) CA2136733A1 (en)
WO (1) WO1993025584A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5973139A (en) * 1998-02-06 1999-10-26 Eastman Chemical Company Carboxylated cellulose esters
US20080071078A1 (en) * 2006-09-19 2008-03-20 Kizer Lawton E Method of making cellulose ester polymer and pre-treating cellulose for the manufacture of cellulose ester polymer
DE102008035401B4 (en) * 2008-07-29 2011-04-21 List Holding Ag Process for the continuous catalytic acetylation of polysaccharides
EA024244B1 (en) * 2013-04-09 2016-08-31 Сумгаитский Государственный Университет Process for producing cellulose powder
EA024275B1 (en) * 2013-04-09 2016-09-30 Сумгаитский Государственный Университет Process for producing activated cellulose
EA024220B1 (en) * 2013-04-30 2016-08-31 Сумгаитский Государственный Университет Process for producing activated cellulose powder
EA024257B1 (en) * 2013-05-24 2016-08-31 Сумгаитский Государственный Университет Process for cellulose activation
EA024276B1 (en) * 2013-06-19 2016-09-30 Сумгаитский Государственный Университет Process for cellulose activation
CN106536568B (en) 2014-07-14 2019-08-16 株式会社大赛璐 The breaking method of the paper pulp of cellulose acetate manufacture and the manufacturing method of cellulose acetate
RU2609803C1 (en) * 2015-09-28 2017-02-06 Общество с ограниченной ответственностью "Твин Технолоджи Компани" Ways to enhance quality and reactivity of cellulose
WO2023137154A1 (en) 2022-01-14 2023-07-20 Greenkey Llc Process for treating land-based plant and marine-based biomasses
WO2024151285A1 (en) 2023-01-13 2024-07-18 Greenkey Llc Process for treating terrestrial-based and marine-based biomasses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016353A (en) * 1975-04-14 1977-04-05 Crown Zellerbach Corporation Process for producing organic acid esters of cellulose
GB2257142A (en) * 1991-07-02 1993-01-06 Daicel Chem Process for producing cellulose acetate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016353A (en) * 1975-04-14 1977-04-05 Crown Zellerbach Corporation Process for producing organic acid esters of cellulose
GB2257142A (en) * 1991-07-02 1993-01-06 Daicel Chem Process for producing cellulose acetate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Chemical Abstracts, volume 81, no 6, 21 August 1974, (Columbus, Ohio, US), Solonitsyn R.A. et al, "Treatment of fiber suspensions and apparatus for carrying this out", 115, THE ABSTRACT No 27451g, Ger. Offen. 2,241,673 1974 *

Also Published As

Publication number Publication date
KR950701649A (en) 1995-04-28
CA2136733A1 (en) 1993-12-23
BR9306539A (en) 1998-09-15
JPH08501326A (en) 1996-02-13
EP0644901A1 (en) 1995-03-29
WO1993025584A2 (en) 1993-12-23

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