Process for preparing cellulose ethers

Details Process for preparing cellulose ethers Process for preparing cellulose ethers

C - Chemistry, Metallurgy

08

B

260/217

C08B 11/20 (2006.01)

Patent

CA 1236452

ABSTRACT OF THE DISCLOSURE Non-gelling cellulose ethers are purified by mixing same with a dialdehyde, prepared in a dry process or in a slurry in a liquid organic diluent, wherein substantially all the diluent has been removed, under acidic conditions and under high agitation, forming a slurry of the treated cellulose ether, rapidly trans- ferring the slurry to a filter and then dewatering said slurry.

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