FR2340399A1 - Procede pour blanchir une pulpe de bois - Google Patents
Procede pour blanchir une pulpe de boisInfo
- Publication number
- FR2340399A1 FR2340399A1 FR7702850A FR7702850A FR2340399A1 FR 2340399 A1 FR2340399 A1 FR 2340399A1 FR 7702850 A FR7702850 A FR 7702850A FR 7702850 A FR7702850 A FR 7702850A FR 2340399 A1 FR2340399 A1 FR 2340399A1
- Authority
- FR
- France
- Prior art keywords
- silicate
- bleaching
- pulp
- addn
- limited
- 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- Withdrawn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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7601285A SE407091B (sv) | 1976-02-05 | 1976-02-05 | Sett att peroxidbleka genom raffinering framstelld cellulosamassa |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2340399A1 true FR2340399A1 (fr) | 1977-09-02 |
Family
ID=20326919
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7702850A Withdrawn FR2340399A1 (fr) | 1976-02-05 | 1977-02-02 | Procede pour blanchir une pulpe de bois |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5296204A (sr) |
AT (1) | AT357864B (sr) |
BR (1) | BR7700715A (sr) |
DE (1) | DE2704758B2 (sr) |
FI (1) | FI770150A (sr) |
FR (1) | FR2340399A1 (sr) |
NO (1) | NO770384L (sr) |
NZ (1) | NZ183120A (sr) |
SE (1) | SE407091B (sr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0485829A1 (de) * | 1990-11-10 | 1992-05-20 | Akzo Nobel N.V. | Sauerstoffbleichung |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE452346C (sv) * | 1982-12-17 | 1990-03-26 | Sunds Defibrator | Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg |
US5002635A (en) * | 1985-09-20 | 1991-03-26 | Scott Paper Company | Method for producing pulp using pre-treatment with stabilizers and refining |
US4849053A (en) * | 1985-09-20 | 1989-07-18 | Scott Paper Company | Method for producing pulp using pre-treatment with stabilizers and defibration |
EP0402335B2 (en) * | 1989-06-06 | 2001-03-14 | Eka Chemicals AB | Process for bleaching lignocellulose-containing pulps |
-
1976
- 1976-02-05 SE SE7601285A patent/SE407091B/xx unknown
-
1977
- 1977-01-12 JP JP284577A patent/JPS5296204A/ja active Pending
- 1977-01-19 NZ NZ183120A patent/NZ183120A/xx unknown
- 1977-01-19 FI FI770150A patent/FI770150A/fi unknown
- 1977-01-27 AT AT50877A patent/AT357864B/de not_active IP Right Cessation
- 1977-02-02 FR FR7702850A patent/FR2340399A1/fr not_active Withdrawn
- 1977-02-04 BR BR7700715A patent/BR7700715A/pt unknown
- 1977-02-04 DE DE2704758A patent/DE2704758B2/de not_active Withdrawn
- 1977-02-04 NO NO770384A patent/NO770384L/no unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0485829A1 (de) * | 1990-11-10 | 1992-05-20 | Akzo Nobel N.V. | Sauerstoffbleichung |
US5322647A (en) * | 1990-11-10 | 1994-06-21 | Akzo N.V. | Oxygen bleaching of cotton linters by disproportionation of hydrogen peroxide |
Also Published As
Publication number | Publication date |
---|---|
JPS5296204A (en) | 1977-08-12 |
NZ183120A (en) | 1978-09-20 |
AU2157077A (en) | 1978-08-03 |
BR7700715A (pt) | 1977-10-11 |
AT357864B (de) | 1980-08-11 |
DE2704758B2 (de) | 1978-05-11 |
SE7601285L (sv) | 1977-08-06 |
DE2704758A1 (de) | 1977-08-11 |
NO770384L (no) | 1977-08-08 |
ATA50877A (de) | 1979-12-15 |
FI770150A (sr) | 1977-08-06 |
SE407091B (sv) | 1979-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |