RO81977B1 - Procedeu de purificare a hidroxietilcelulozei brute - Google Patents
Procedeu de purificare a hidroxietilcelulozei bruteInfo
- Publication number
- RO81977B1 RO81977B1 RO104352A RO10435281A RO81977B1 RO 81977 B1 RO81977 B1 RO 81977B1 RO 104352 A RO104352 A RO 104352A RO 10435281 A RO10435281 A RO 10435281A RO 81977 B1 RO81977 B1 RO 81977B1
- Authority
- RO
- Romania
- Prior art keywords
- purification
- hydroxyethylcelullose
- raw
- hydroxyethyl cellulose
- hydroxyethylcellulose
- Prior art date
Links
- 238000000746 purification Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 abstract 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 abstract 3
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 abstract 3
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 abstract 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Procedeu de purificare a hidroxietilcelulozei brute, prin schimb ionic, care în scopul realizarii unei purificari avansate, consta în trecerea unei solutii apoase de hidroxietilceluloza 5...15%, de preferinta 6...12% concentratie, printr-un cationit uzual în forma acida la temperatura ambianta, izolîndu-se astfel hidroxietilceluloza pura cu un continut de cenusa de maximum 0,5% raportat la substanta uscata.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81104352A RO81977A2 (ro) | 1981-05-20 | 1981-05-20 | Procedeu de purificare a hidroxietilcelulozei brute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO81104352A RO81977A2 (ro) | 1981-05-20 | 1981-05-20 | Procedeu de purificare a hidroxietilcelulozei brute |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO81977B1 true RO81977B1 (ro) | 1983-06-30 |
| RO81977A2 RO81977A2 (ro) | 1983-07-07 |
Family
ID=20109970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO81104352A RO81977A2 (ro) | 1981-05-20 | 1981-05-20 | Procedeu de purificare a hidroxietilcelulozei brute |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO81977A2 (ro) |
-
1981
- 1981-05-20 RO RO81104352A patent/RO81977A2/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO81977A2 (ro) | 1983-07-07 |
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