RO98702B1 - Process for obtaining a lignosulphonate-based additive used at cellulose fabrication - Google Patents
Process for obtaining a lignosulphonate-based additive used at cellulose fabricationInfo
- Publication number
- RO98702B1 RO98702B1 RO129753A RO12975387A RO98702B1 RO 98702 B1 RO98702 B1 RO 98702B1 RO 129753 A RO129753 A RO 129753A RO 12975387 A RO12975387 A RO 12975387A RO 98702 B1 RO98702 B1 RO 98702B1
- Authority
- RO
- Romania
- Prior art keywords
- cellulose
- obtaining
- additive used
- lignosulphonate
- fabrication
- Prior art date
Links
- 239000000654 additive Substances 0.000 title abstract 3
- 230000000996 additive effect Effects 0.000 title abstract 3
- 229920002678 cellulose Polymers 0.000 title abstract 3
- 239000001913 cellulose Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 229920001732 Lignosulfonate Polymers 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 239000004117 Lignosulphonate Substances 0.000 title 1
- 235000019357 lignosulphonate Nutrition 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 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
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Inventia se refera la un procedeu de obtinere a unui aditiv de baza de lignosulfonat utilizat la fabricarea celulozei, în procesul de fierbere sulfat. Se porneste de la borhotul lignosulfonic care se trateaza cu NaOH si apoi cu un amestec de acid azotic si azotil de sodiu. Aditivul adaugat în procesul de preparare a celulozei conduce la un randament marit în celuloza.The invention relates to a process for obtaining a lignosulfonate base additive used in the manufacture of cellulose in the sulphate boiling process. Starting from the lignosulfonic borohydrate treated with NaOH and then with a mixture of nitric acid and sodium azoate. The added additive in the pulp preparation process results in increased cellulose yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO129753A RO98702B1 (en) | 1987-09-17 | 1987-09-17 | Process for obtaining a lignosulphonate-based additive used at cellulose fabrication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO129753A RO98702B1 (en) | 1987-09-17 | 1987-09-17 | Process for obtaining a lignosulphonate-based additive used at cellulose fabrication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO98702B1 true RO98702B1 (en) | 1990-03-30 |
Family
ID=40906798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO129753A RO98702B1 (en) | 1987-09-17 | 1987-09-17 | Process for obtaining a lignosulphonate-based additive used at cellulose fabrication |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO98702B1 (en) |
-
1987
- 1987-09-17 RO RO129753A patent/RO98702B1/en unknown
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