RO86971B1 - Procedeu de obtinere a celulozei - Google Patents
Procedeu de obtinere a celulozeiInfo
- Publication number
- RO86971B1 RO86971B1 RO110440A RO11044083A RO86971B1 RO 86971 B1 RO86971 B1 RO 86971B1 RO 110440 A RO110440 A RO 110440A RO 11044083 A RO11044083 A RO 11044083A RO 86971 B1 RO86971 B1 RO 86971B1
- Authority
- RO
- Romania
- Prior art keywords
- cellulose
- expressed
- dry wood
- obtaining cellulose
- boiling
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title abstract 3
- 239000001913 cellulose Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 238000009835 boiling Methods 0.000 abstract 2
- 239000002023 wood Substances 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000012670 alkaline solution Substances 0.000 abstract 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 abstract 1
- 150000004056 anthraquinones Chemical class 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000011121 hardwood Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 239000011122 softwood Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Invenbtia se refera la un procedeu de obtinere a celulozei prin fierberea natron sau sulfat a lemnului de foioase sau rasinoase cu solutii alcaline la temperaturi de 165...167 degree C, aditivi, prin care, în scopul îmbunatatirii randamentului si a caracteristicilor de rezistenta a celulozei, se introduce în solutia de fierbere cu continut de 19% alcalii active exprimat în NaOH fata de lemnul absolul uscat, 0,070...0,085% antrachinona sub forma de dispersie si 1,0...1,2% uree sub forma de pulbere, procentele fiind exprimate în greutate raportata la lemnul absolut uscat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO110440A RO86971B1 (ro) | 1983-03-24 | 1983-03-24 | Procedeu de obtinere a celulozei |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO110440A RO86971B1 (ro) | 1983-03-24 | 1983-03-24 | Procedeu de obtinere a celulozei |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO86971A2 RO86971A2 (ro) | 1985-05-20 |
| RO86971B1 true RO86971B1 (ro) | 1985-05-31 |
Family
ID=20112840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO110440A RO86971B1 (ro) | 1983-03-24 | 1983-03-24 | Procedeu de obtinere a celulozei |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO86971B1 (ro) |
-
1983
- 1983-03-24 RO RO110440A patent/RO86971B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO86971A2 (ro) | 1985-05-20 |
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