Preparation of cellulose diacetate by recycling processed film

Details Preparation of cellulose diacetate by recycling processed film Preparation of cellulose diacetate by recycling processed film

1991-02-08

1993-05-25

Kight, III, John

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

Organic compounds

Carbohydrates or derivatives

536 78, 536127, C08B 306, C08B 322, C08B 324, C08B 328

Patent

active

052141373

ABSTRACT:
A one step process for preparing cellulose diacetates from processed film having cellulose triacetate as a base. The process involves use of an organic acid such as acetic acid and a solvolysis agent such as an alkanol or water. Hydrogen and a hydrogenation catalyst are optionally employed. The process allows for a simple way of recycling a material that presently is not recycled to any appreciable extent.

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