GB1120074A - Process for the production of cellulose acetate - Google Patents

Process for the production of cellulose acetate

Info

Publication number
GB1120074A
GB1120074A GB2902567A GB2902567A GB1120074A GB 1120074 A GB1120074 A GB 1120074A GB 2902567 A GB2902567 A GB 2902567A GB 2902567 A GB2902567 A GB 2902567A GB 1120074 A GB1120074 A GB 1120074A
Authority
GB
United Kingdom
Prior art keywords
cellulose acetate
acetic anhydride
production
wgt
pts
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2902567A
Inventor
Rolf Mueller
Werner Saupe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EILENBURGER CELLULOID WERK VEB
Original Assignee
EILENBURGER CELLULOID WERK VEB
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 EILENBURGER CELLULOID WERK VEB filed Critical EILENBURGER CELLULOID WERK VEB
Priority to GB2902567A priority Critical patent/GB1120074A/en
Publication of GB1120074A publication Critical patent/GB1120074A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds

Landscapes

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

Abstract

Cellulose acetate is made by the esterification of cellulose with acetic anhydride, in the presence of chlorinated hydrocarbons as solvents, using a catalyst which has been prepared by the reaction of sulphuric acid with acetic anhydride in the presence of acetic acid. 1-20 pts. by wgt. of sulphuric acid and 10-400 parts by wgt. of acetic acid are suitably used per 100 pts. of acetic anhydride, with a reaction temperature of 0-100 DEG C. Methylene chloride is a specified solvent. The product is highly viscous, and is substantially free of gel particles and fibres.
GB2902567A 1967-06-23 1967-06-23 Process for the production of cellulose acetate Expired GB1120074A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2902567A GB1120074A (en) 1967-06-23 1967-06-23 Process for the production of cellulose acetate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2902567A GB1120074A (en) 1967-06-23 1967-06-23 Process for the production of cellulose acetate

Publications (1)

Publication Number Publication Date
GB1120074A true GB1120074A (en) 1968-07-17

Family

ID=10285040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2902567A Expired GB1120074A (en) 1967-06-23 1967-06-23 Process for the production of cellulose acetate

Country Status (1)

Country Link
GB (1) GB1120074A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994014344A1 (en) * 1992-12-25 1994-07-07 Aktsionernoe Obschestvo 'polimersintez' Catalytic system for the acylation of cellulose and a process for producing and using said catalytic system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994014344A1 (en) * 1992-12-25 1994-07-07 Aktsionernoe Obschestvo 'polimersintez' Catalytic system for the acylation of cellulose and a process for producing and using said catalytic system

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