FR2457338A1 - Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalines - Google Patents
Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalinesInfo
- Publication number
- FR2457338A1 FR2457338A1 FR7913555A FR7913555A FR2457338A1 FR 2457338 A1 FR2457338 A1 FR 2457338A1 FR 7913555 A FR7913555 A FR 7913555A FR 7913555 A FR7913555 A FR 7913555A FR 2457338 A1 FR2457338 A1 FR 2457338A1
- Authority
- FR
- France
- Prior art keywords
- soln
- cellulosic material
- material during
- alkaline treatment
- carboxylated polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
L'INVENTION CONCERNE UN PROCEDE POUR LA PROTECTION DES MATIERES CELLULOSIQUES CONTRE LA DEPOLYMERISATION AU COURS DE LEURS TRAITEMENTS PAR DES SOLUTIONS ALCALINES. LE PROCEDE CONSISTE A AJOUTER A LA SOLUTION ALCALINE UN POLYMERE HYDROXYCARBOXYLE. LE PROCEDE CONVIENT POUR LES TRAITEMENTS ALCALINS DES PATES CELLULOSIQUES DESTINEES A LA FABRICATION DU PAPIER ET DES FIBRES CELLULOSIQUES.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7913555A FR2457338A1 (fr) | 1979-05-25 | 1979-05-25 | Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7913555A FR2457338A1 (fr) | 1979-05-25 | 1979-05-25 | Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalines |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2457338A1 true FR2457338A1 (fr) | 1980-12-19 |
Family
ID=9225940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7913555A Withdrawn FR2457338A1 (fr) | 1979-05-25 | 1979-05-25 | Procede pour la protection des matieres cellulosiques au cours de leurs traitements par des solutions alcalines |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2457338A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2601025A1 (fr) * | 1986-07-03 | 1988-01-08 | Sandoz Sa | Stabilisation des agents de blanchiment a base de peroxydes |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2084031A5 (fr) * | 1970-03-02 | 1971-12-17 | Mo Och Domsjoe Ab | |
FR2342365A1 (fr) * | 1976-02-25 | 1977-09-23 | Solvay | Procede pour la stabilisation de solutions de composes peroxydes utilisees pour le blanchiment |
-
1979
- 1979-05-25 FR FR7913555A patent/FR2457338A1/fr not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2084031A5 (fr) * | 1970-03-02 | 1971-12-17 | Mo Och Domsjoe Ab | |
FR2342365A1 (fr) * | 1976-02-25 | 1977-09-23 | Solvay | Procede pour la stabilisation de solutions de composes peroxydes utilisees pour le blanchiment |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2601025A1 (fr) * | 1986-07-03 | 1988-01-08 | Sandoz Sa | Stabilisation des agents de blanchiment a base de peroxydes |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |