CARBOXYMETHYLCELLULOSE PRODUCTION PROCESS

CARBOXYMETHYLCELLULOSE PRODUCTION PROCESS

FIELD: cellulose derivatives production. SUBSTANCE: cotton cellulose cut to 3-4 mm fiber length is placed into apparatus-activator provided with two- blade stirrers and subjected to mercerization at bath module from 1:1.8 to 1: 2.0. Material is then treated by sodium monochloroacetate gradually rais...

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Bibliographische Detailangaben
Hauptverfasser: KHABIBULLIN A.S, ISKHAKOV D.M, NUGMANOV O.K, MINDUBAEV I.A, KHALITOV R.A, SOPIN V.F, LEKAREV V.A
Format: Patent
Sprache:eng ; rus
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES THEREOF
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:FIELD: cellulose derivatives production. SUBSTANCE: cotton cellulose cut to 3-4 mm fiber length is placed into apparatus-activator provided with two- blade stirrers and subjected to mercerization at bath module from 1:1.8 to 1: 2.0. Material is then treated by sodium monochloroacetate gradually raising temperature from 30 to 65-75 C. Process is completed in pneumatic tube at 40-45 C to yield product with substitution degree 72-77%, solubility up to 99.5%, and water loss coefficient 6-9 cu.m. EFFECT: increased product characteristics. 1 tble