RO96819B1 - Procedeu de obtinere a carboximetilnitratului de celuloaza - Google Patents
Procedeu de obtinere a carboximetilnitratului de celuloazaInfo
- Publication number
- RO96819B1 RO96819B1 RO127398A RO12739887A RO96819B1 RO 96819 B1 RO96819 B1 RO 96819B1 RO 127398 A RO127398 A RO 127398A RO 12739887 A RO12739887 A RO 12739887A RO 96819 B1 RO96819 B1 RO 96819B1
- Authority
- RO
- Romania
- Prior art keywords
- nitrate
- cellulose
- carboxymethyl
- stirring
- treated
- Prior art date
Links
- VHOVOPOBBVJMEP-UHFFFAOYSA-N 2-nitrooxyacetic acid Chemical compound OC(=O)CO[N+]([O-])=O VHOVOPOBBVJMEP-UHFFFAOYSA-N 0.000 title abstract 5
- 239000001913 cellulose Substances 0.000 title abstract 5
- 229920002678 cellulose Polymers 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 1
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 230000001476 alcoholic effect Effects 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 1
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 abstract 1
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 abstract 1
- 229910052938 sodium sulfate Inorganic materials 0.000 abstract 1
- 235000011152 sodium sulphate Nutrition 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Inventia de fata se refera la un procedeu de obtinere a carboximetilnitratului de celuloza, cu o inflamabilitate scazuta fata de trinitratul de celuloza si folosit ca agent de stabilizare a suspensiilor alcaline, îngrosator de solutii etc. Carboximetilnitratul de celuloza, conform inventiei, este realizat prin tratarea carboximetilcelulozei sodice, de diferite grade de substitutie, obtinuta prin procedeele cunosute cu o solutie alcoolica de acid sulfuric (10%), cub agitare la temperatura camerei, pentru transformarea în carboximetilceluloza forma acida. produsul astfel obtinut se spala cu apa (pentru îndepartarea sulfatului de sodiu format) si este tratat cu amestec sulfonitrilic, sub agitare, la temperatura camerei, pentru obtinrea carboximetilnitratului de celuloza. Carboximetilnitratul rezultat din reactie este filtrat si tratat, pentru evitarea degradarii ulterioare, cu o solutie apoasa de carbonat de sodiu la fierbere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO127398A RO96819B1 (ro) | 1987-03-13 | 1987-03-13 | Procedeu de obtinere a carboximetilnitratului de celuloaza |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO127398A RO96819B1 (ro) | 1987-03-13 | 1987-03-13 | Procedeu de obtinere a carboximetilnitratului de celuloaza |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO96819A2 RO96819A2 (ro) | 1989-04-28 |
| RO96819B1 true RO96819B1 (ro) | 1989-05-01 |
Family
ID=20120489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO127398A RO96819B1 (ro) | 1987-03-13 | 1987-03-13 | Procedeu de obtinere a carboximetilnitratului de celuloaza |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO96819B1 (ro) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2683821B1 (fr) * | 1991-11-15 | 1998-11-20 | Asahi Chemical Ind | Polysaccharide, polysaccharide neutralise et composition comprenant ce dernier. |
-
1987
- 1987-03-13 RO RO127398A patent/RO96819B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO96819A2 (ro) | 1989-04-28 |
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