SE8405984L - Forfarande for framstellning av sulfitcellulosa - Google Patents
Forfarande for framstellning av sulfitcellulosaInfo
- Publication number
- SE8405984L SE8405984L SE8405984A SE8405984A SE8405984L SE 8405984 L SE8405984 L SE 8405984L SE 8405984 A SE8405984 A SE 8405984A SE 8405984 A SE8405984 A SE 8405984A SE 8405984 L SE8405984 L SE 8405984L
- Authority
- SE
- Sweden
- Prior art keywords
- solution
- sulfit
- cellulosa
- procedure
- preparation
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
-
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
Landscapes
- Paper (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI834358A FI73012C (sv) | 1983-11-29 | 1983-11-29 | Förfarande för kokning av sulfitcellulosa. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8405984D0 SE8405984D0 (sv) | 1984-11-27 |
SE8405984L true SE8405984L (sv) | 1985-05-30 |
Family
ID=8518141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8405984A SE8405984L (sv) | 1983-11-29 | 1984-11-27 | Forfarande for framstellning av sulfitcellulosa |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS60134088A (sv) |
DD (1) | DD229446A5 (sv) |
DE (1) | DE3440716A1 (sv) |
FI (1) | FI73012C (sv) |
HU (1) | HUT36873A (sv) |
NO (1) | NO844740L (sv) |
PL (1) | PL145660B1 (sv) |
SE (1) | SE8405984L (sv) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE62376C (de) * | O. SCHMIDT in Berlin N., Weifsen-I burgerstr. 48 | Verfahren zur Gewinnung von Zellstoff | ||
DE527950C (de) * | 1928-12-30 | 1931-06-24 | I G Farbenindustrie Akt Ges | Verfahren zur Gewinnung von Sulfitzellstoff |
-
1983
- 1983-11-29 FI FI834358A patent/FI73012C/sv not_active IP Right Cessation
-
1984
- 1984-11-07 DE DE19843440716 patent/DE3440716A1/de not_active Ceased
- 1984-11-13 HU HU421784A patent/HUT36873A/hu unknown
- 1984-11-27 SE SE8405984A patent/SE8405984L/sv not_active Application Discontinuation
- 1984-11-27 DD DD26993684A patent/DD229446A5/de unknown
- 1984-11-27 JP JP25036184A patent/JPS60134088A/ja active Pending
- 1984-11-28 NO NO844740A patent/NO844740L/no unknown
- 1984-11-29 PL PL25063284A patent/PL145660B1/pl unknown
Also Published As
Publication number | Publication date |
---|---|
DE3440716A1 (de) | 1985-06-05 |
FI73012C (sv) | 1987-08-10 |
PL145660B1 (en) | 1988-10-31 |
DD229446A5 (de) | 1985-11-06 |
FI73012B (fi) | 1987-04-30 |
PL250632A1 (en) | 1985-07-16 |
HUT36873A (en) | 1985-10-28 |
FI834358A0 (fi) | 1983-11-29 |
SE8405984D0 (sv) | 1984-11-27 |
FI834358A (fi) | 1985-05-30 |
NO844740L (no) | 1985-05-30 |
JPS60134088A (ja) | 1985-07-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8405984-9 Effective date: 19881230 |