Process for preparing cellulose acetate

Details Process for preparing cellulose acetate Process for preparing cellulose acetate

1984-12-28

1986-05-20

Griffin, Ronald W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536 71, 536 73, C08B 306

Patent

active

045902666

ABSTRACT:
Cellulose acetate is effectively prepared from cellulose and acetic anhydride in a solvent of acetic acid in the presence of a catalyst of sulfuric acid, when the reaction system is being evacuated at least before the reaction mixture reaches a boiling point thereof until the reaction completes, so that the vapor evolved from the reaction mixture may be condensed to distill off and the reaction product may be concentrated.

REFERENCES:
patent: 1236579 (1917-08-01), Lindsay
patent: 1536311 (1925-05-01), Seel
patent: 1956832 (1934-05-01), Mason
patent: 2136030 (1938-11-01), Stone

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