Process for preparing cellulose ethers

Details Process for preparing cellulose ethers Process for preparing cellulose ethers

1984-06-29

1985-08-27

Griffin, Ronald W.

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

Organic compounds

Carbohydrates or derivatives

536 87, 536 88, 536 89, 536 91, 536 96, C08B 1120, C08B 1122

Patent

active

045379580

ABSTRACT:
Non-gelling cellulose ethers are purified by mixing same with a dialdehyde under acidic conditions and under high agitation, forming a slurry of the treated cellulose ether, rapidly transferring the slurry to a filter and then dewatering said slurry.

REFERENCES:
patent: 3072635 (1963-01-01), Menkart et al.
patent: 3347847 (1967-10-01), Engelskirchen et al.
patent: 3356519 (1967-12-01), Chambers et al.
patent: 3527751 (1970-09-01), Gill
patent: 3709876 (1973-01-01), Glomski et al.
patent: 3903076 (1975-09-01), Krumel et al.
patent: 4400502 (1983-08-01), Majewicz

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