SE0100384D0 - Preparation of cellulose - Google Patents
Preparation of celluloseInfo
- Publication number
- SE0100384D0 SE0100384D0 SE0100384A SE0100384A SE0100384D0 SE 0100384 D0 SE0100384 D0 SE 0100384D0 SE 0100384 A SE0100384 A SE 0100384A SE 0100384 A SE0100384 A SE 0100384A SE 0100384 D0 SE0100384 D0 SE 0100384D0
- Authority
- SE
- Sweden
- Prior art keywords
- alkali
- ligno
- involves
- action
- cellulosic material
- Prior art date
Links
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 239000003513 alkali Substances 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 3
- 239000012978 lignocellulosic material Substances 0.000 abstract 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
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
- D21C3/22—Other features of pulping processes
- D21C3/224—Use of means other than pressure and temperature
-
- 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
-
- 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
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Abstract
The present invention relates to a method for producing cellulose from a ligno-cellulosic material, wherein said method involves submitting this material to a high-temperature process in a sulfate alkali medium while acting on the alkali using an electric current. This action involves applying high-voltage pulsed electric discharges, wherein the mixture of sulfate alkali and ligno-cellulosic material is submitted to said action. The method also involves feeding air or pressurised pure oxygen into the sulfate alkali.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU98116386/12A RU2145986C1 (en) | 1998-08-25 | 1998-08-25 | Method of manufacture of cellulose |
PCT/RU1999/000291 WO2000011260A2 (en) | 1998-08-25 | 1999-08-09 | Method for producing cellulose |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0100384D0 true SE0100384D0 (en) | 2001-02-06 |
SE0100384L SE0100384L (en) | 2001-02-06 |
Family
ID=20210032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0100384A SE0100384L (en) | 1998-08-25 | 2001-02-06 | Preparation of cellulose |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE19983507T1 (en) |
FI (1) | FI20010328A (en) |
RU (1) | RU2145986C1 (en) |
SE (1) | SE0100384L (en) |
WO (1) | WO2000011260A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012125057A1 (en) * | 2011-03-17 | 2012-09-20 | Maksimov Vladimir Vladimirovich | Process for processing fibrous material |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE385027B (en) * | 1974-09-27 | 1976-05-31 | Mo Och Domsjoe Ab | PROCEDURE FOR RELEASING CELLULOSIAN FIBERS |
SU1694764A1 (en) * | 1989-12-29 | 1991-11-30 | Белорусский технологический институт им.С.М.Кирова | Method of manufacturing wood fiber boards |
RU2004663C1 (en) * | 1990-05-15 | 1993-12-15 | Валерий Иванович Жарков | Electrochemical method of cellulose production |
RU2083746C1 (en) * | 1992-12-30 | 1997-07-10 | Дмитрий Дмитриевич Медведев | Method of cellulose bleaching |
DE19516151A1 (en) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Process for the production of a pulp from cellulosic material, the pulp itself and its use |
-
1998
- 1998-08-25 RU RU98116386/12A patent/RU2145986C1/en not_active IP Right Cessation
-
1999
- 1999-08-09 WO PCT/RU1999/000291 patent/WO2000011260A2/en active Application Filing
- 1999-08-09 DE DE19983507T patent/DE19983507T1/en active Pending
-
2001
- 2001-02-06 SE SE0100384A patent/SE0100384L/en not_active Application Discontinuation
- 2001-02-21 FI FI20010328A patent/FI20010328A/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2000011260A2 (en) | 2000-03-02 |
RU2145986C1 (en) | 2000-02-27 |
DE19983507T1 (en) | 2002-09-26 |
WO2000011260A3 (en) | 2000-06-08 |
FI20010328A (en) | 2001-02-21 |
SE0100384L (en) | 2001-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |