SE9503764L - Sätt vid massablekning - Google Patents
Sätt vid massablekningInfo
- Publication number
- SE9503764L SE9503764L SE9503764A SE9503764A SE9503764L SE 9503764 L SE9503764 L SE 9503764L SE 9503764 A SE9503764 A SE 9503764A SE 9503764 A SE9503764 A SE 9503764A SE 9503764 L SE9503764 L SE 9503764L
- Authority
- SE
- Sweden
- Prior art keywords
- bleaching
- acidic
- alkaline
- stage
- ways
- Prior art date
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
-
- 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
-
- 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
-
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9503764A SE516219C2 (sv) | 1995-10-26 | 1995-10-26 | Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg |
PCT/SE1996/001295 WO1997015714A1 (en) | 1995-10-26 | 1996-10-11 | Bleaching sequence for chemical paper pulp including sulphonating and oxidising bleaching stages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9503764A SE516219C2 (sv) | 1995-10-26 | 1995-10-26 | Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9503764D0 SE9503764D0 (sv) | 1995-10-26 |
SE9503764L true SE9503764L (sv) | 1997-04-27 |
SE516219C2 SE516219C2 (sv) | 2001-12-03 |
Family
ID=20399965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9503764A SE516219C2 (sv) | 1995-10-26 | 1995-10-26 | Blekning av kemisk pappersmassa i ett sulfonerande steg och ett surt syredelignifieringssteg |
Country Status (2)
Country | Link |
---|---|
SE (1) | SE516219C2 ( ) |
WO (1) | WO1997015714A1 ( ) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1004630A3 (fr) * | 1990-10-17 | 1992-12-22 | Interox Internat Sa | Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques. |
SE9402726L (sv) * | 1994-08-16 | 1995-08-28 | Kvaerner Pulping Tech | Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg |
-
1995
- 1995-10-26 SE SE9503764A patent/SE516219C2/sv not_active IP Right Cessation
-
1996
- 1996-10-11 WO PCT/SE1996/001295 patent/WO1997015714A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
SE9503764D0 (sv) | 1995-10-26 |
WO1997015714A1 (en) | 1997-05-01 |
SE516219C2 (sv) | 2001-12-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |