发明名称 |
CARBOXYMETHYLCELLULOSE PRODUCTION PROCESS |
摘要 |
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
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申请公布号 |
RU2118638(C1) |
申请公布日期 |
1998.09.10 |
申请号 |
RU19960117215 |
申请日期 |
1996.08.23 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO KHOLDINGOVAJA KO;OTKRYTOE AKTSIONERNOE OBSHCHES |
发明人 |
SOPIN V.F.;KHABIBULLIN A.S.;ISKHAKOV D.M.;KHALITOV R.A.;LEKAREV V.A.;NUGMANOV O.K.;MINDUBAEV I.A. |
分类号 |
C08B11/12 |
主分类号 |
C08B11/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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