RO92749B1 - Procedeu de obtinere a celulozei pentru acetilare - Google Patents
Procedeu de obtinere a celulozei pentru acetilareInfo
- Publication number
- RO92749B1 RO92749B1 RO119366A RO11936685A RO92749B1 RO 92749 B1 RO92749 B1 RO 92749B1 RO 119366 A RO119366 A RO 119366A RO 11936685 A RO11936685 A RO 11936685A RO 92749 B1 RO92749 B1 RO 92749B1
- Authority
- RO
- Romania
- Prior art keywords
- acetylation
- obtaining cellulose
- cellulose used
- treatment
- boiling
- Prior art date
Links
- 230000021736 acetylation Effects 0.000 title abstract 2
- 238000006640 acetylation reaction Methods 0.000 title abstract 2
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- 238000009835 boiling Methods 0.000 abstract 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 abstract 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 1
- 241000199223 Elaeocarpus kirtonii Species 0.000 abstract 1
- 235000009414 Elaeocarpus kirtonii Nutrition 0.000 abstract 1
- 235000013584 Tabebuia pallida Nutrition 0.000 abstract 1
- ZETCGWYACBNPIH-UHFFFAOYSA-N azane;sulfurous acid Chemical compound N.OS(O)=O ZETCGWYACBNPIH-UHFFFAOYSA-N 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000000460 chlorine Substances 0.000 abstract 1
- 229910052801 chlorine Inorganic materials 0.000 abstract 1
- 230000020477 pH reduction Effects 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 abstract 1
- 235000010265 sodium sulphite Nutrition 0.000 abstract 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 abstract 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 abstract 1
- 235000019801 trisodium phosphate Nutrition 0.000 abstract 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Prezenta inventie se refera, la un procedeu de obtinere a celulozei pentru acetilare prin fierberea lemnului de rasinoase în doua trepte de fierbere cu sulfit acid de amoniu, înalbirea masei de reactie prin tratare cu clor activ, înnobilare cu NaOH, Na3PO4 si Na2SO3 tratare cu hipoclorit, apoi cu apa oxigenata si acidulare cu SO2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO119366A RO92749B1 (ro) | 1985-07-01 | 1985-07-01 | Procedeu de obtinere a celulozei pentru acetilare |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO119366A RO92749B1 (ro) | 1985-07-01 | 1985-07-01 | Procedeu de obtinere a celulozei pentru acetilare |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO92749A2 RO92749A2 (ro) | 1987-12-30 |
| RO92749B1 true RO92749B1 (ro) | 1987-12-31 |
Family
ID=20117530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO119366A RO92749B1 (ro) | 1985-07-01 | 1985-07-01 | Procedeu de obtinere a celulozei pentru acetilare |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO92749B1 (ro) |
-
1985
- 1985-07-01 RO RO119366A patent/RO92749B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO92749A2 (ro) | 1987-12-30 |
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