SE9403174L - Metod för enzymatisk behandling av kemisk massa före blekning - Google Patents
Metod för enzymatisk behandling av kemisk massa före blekningInfo
- Publication number
- SE9403174L SE9403174L SE9403174A SE9403174A SE9403174L SE 9403174 L SE9403174 L SE 9403174L SE 9403174 A SE9403174 A SE 9403174A SE 9403174 A SE9403174 A SE 9403174A SE 9403174 L SE9403174 L SE 9403174L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- chemical pulp
- enzymatic treatment
- pulp before
- before bleaching
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
-
- 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)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP009477U JPH0670208U (ja) | 1993-01-22 | 1993-01-22 | コイル |
JP21296693 | 1993-08-27 | ||
PCT/JP1994/000076 WO1994017237A1 (en) | 1993-01-22 | 1994-01-21 | Pre-bleaching treatment method using enzyme for chemical pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9403174D0 SE9403174D0 (sv) | 1994-09-21 |
SE9403174L true SE9403174L (sv) | 1994-11-16 |
Family
ID=26344222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9403174A SE9403174L (sv) | 1993-01-22 | 1994-09-21 | Metod för enzymatisk behandling av kemisk massa före blekning |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA2130906A1 (sv) |
FI (1) | FI944350A0 (sv) |
SE (1) | SE9403174L (sv) |
WO (1) | WO1994017237A1 (sv) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4920504B1 (sv) * | 1969-06-07 | 1974-05-25 | ||
FR2604198B1 (fr) * | 1986-09-22 | 1989-07-07 | Du Pin Cellulose | Procede de traitement d'une pate papetiere par une solution enzymatique. |
EP0373108A3 (en) * | 1988-11-23 | 1992-03-04 | Sandoz Ag | Process for bleaching pulp |
US5179021A (en) * | 1989-02-10 | 1993-01-12 | Gil Inc. (Now Ici Canada Inc.) | Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment |
-
1994
- 1994-01-21 CA CA 2130906 patent/CA2130906A1/en not_active Abandoned
- 1994-01-21 WO PCT/JP1994/000076 patent/WO1994017237A1/ja active Application Filing
- 1994-09-20 FI FI944350A patent/FI944350A0/sv unknown
- 1994-09-21 SE SE9403174A patent/SE9403174L/sv not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FI944350A (sv) | 1994-09-20 |
FI944350A0 (sv) | 1994-09-20 |
CA2130906A1 (en) | 1994-08-04 |
SE9403174D0 (sv) | 1994-09-21 |
WO1994017237A1 (en) | 1994-08-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
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