反応式
[OH-].[Na+].Cl[CH2:4][C:5]([OH:7])=O.[CH2:8](Cl)[CH2:9][CH2:10][CH2:11][CH2:12][CH3:13].[N+]([O-])(O)=O.[C:19](O)(=O)[CH3:20].[CH2:23](O)[CH3:24]>O>[CH2:8]([O:7][CH2:5][CH2:4][CH2:23][CH2:24][CH2:19][CH3:20])[CH2:9][CH2:10][CH2:11][CH2:12][CH3:13]参加物
7
反応条件
- 温度
- 95 °C
実験手順
Cellulose (20 g), sodium hydroxide (10 g), water (30 g), and ethanol (150 g) are charged into a 500 ml glass reactor. The resulting alkali cellulose is stirred 45 minutes at 25° C. Then monochloroacetic acid (15 g) and hexylchoride (1 g) are added and the temperature raised over time to 95° C. and held at 95° C. for 150 minutes. The reaction is cooled to 70° C., and then cooled to 25° C. Neutralization is accomplished by the addition of a sufficient amount of nitric acid/acetic acid to achieve a slurry pH of between 8 and 9. The slurry is filtered to obtain a hexylether of CMC.
後処理
- temperatureThe reaction is cooled to 70° C.
- temperaturecooled to 25° C
- filtrationThe slurry is filtered
出典と根拠
- ORDレコード
- ord-d13c82ecfe77441e9591da1cc757fa50
- 出典データセット
- uspto-grants-2004_10
- 特許番号
- US06803355B1
関連ノート
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