DE3669554D1 - Ein verfahren zur delignifizierung von zellstoff. - Google Patents
Ein verfahren zur delignifizierung von zellstoff.Info
- Publication number
- DE3669554D1 DE3669554D1 DE8686117166T DE3669554T DE3669554D1 DE 3669554 D1 DE3669554 D1 DE 3669554D1 DE 8686117166 T DE8686117166 T DE 8686117166T DE 3669554 T DE3669554 T DE 3669554T DE 3669554 D1 DE3669554 D1 DE 3669554D1
- Authority
- DE
- Germany
- Prior art keywords
- gas
- nitrogen oxides
- lignocellulosic material
- oxygen
- activation
- 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.)
- Expired - Fee Related
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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
Landscapes
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8505825A SE451023B (sv) | 1985-12-10 | 1985-12-10 | Forfarande vid aktivering av lignocellulosamaterial med kvevedioxid innehallande gas |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3669554D1 true DE3669554D1 (de) | 1990-04-19 |
Family
ID=20362410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8686117166T Expired - Fee Related DE3669554D1 (de) | 1985-12-10 | 1986-12-09 | Ein verfahren zur delignifizierung von zellstoff. |
Country Status (12)
Country | Link |
---|---|
US (1) | US4853082A (de) |
EP (1) | EP0225638B1 (de) |
JP (1) | JPS62141186A (de) |
AT (1) | ATE51048T1 (de) |
AU (1) | AU586304B2 (de) |
DE (1) | DE3669554D1 (de) |
ES (1) | ES2014410B3 (de) |
FI (1) | FI85992C (de) |
NO (1) | NO163576C (de) |
NZ (1) | NZ218358A (de) |
PT (1) | PT83895B (de) |
SE (1) | SE451023B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE460543B (sv) * | 1987-09-28 | 1989-10-23 | Mo Och Domsjoe Ab | Foerfarande vid aktivering av lignocellulosamaterial med kvaevedioxid innehaallande gas |
CA2452145A1 (en) * | 2003-06-03 | 2004-12-03 | David Tarasenko | Method for producing pulp and lignin |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3578553A (en) * | 1968-09-10 | 1971-05-11 | Int Paper Canada | Nitrogen dioxide pulping process |
US4076579A (en) * | 1973-08-06 | 1978-02-28 | The Regents Of The University Of California | Pulping of lignocellulosic material by sequential treatment thereof with nitric oxide and oxygen |
SE441192B (sv) * | 1980-05-27 | 1985-09-16 | Mo Och Domsjoe Ab | Forfarande for delignifiering av kemisk cellulosamassa med syrgas i nervaro av ett eller flera neutralisationsmedel |
SE421938B (sv) * | 1980-06-05 | 1982-02-08 | Mo Och Domsjoe Ab | Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning |
AU542952B2 (en) * | 1981-05-27 | 1985-03-28 | Mo Och Domsjo Aktiebolag | Bleaching cellulose pulp |
SE451149B (sv) * | 1983-01-26 | 1987-09-07 | Mo Och Domsjoe Ab | Apparatur for kontinuerlig behandling av vatteninnehallande lignocellulosamaterial med kveveoxid och syre |
-
1985
- 1985-12-10 SE SE8505825A patent/SE451023B/xx not_active IP Right Cessation
-
1986
- 1986-11-21 NZ NZ218358A patent/NZ218358A/xx unknown
- 1986-12-09 EP EP86117166A patent/EP0225638B1/de not_active Expired - Lifetime
- 1986-12-09 NO NO864943A patent/NO163576C/no unknown
- 1986-12-09 ES ES86117166T patent/ES2014410B3/es not_active Expired - Lifetime
- 1986-12-09 DE DE8686117166T patent/DE3669554D1/de not_active Expired - Fee Related
- 1986-12-09 PT PT83895A patent/PT83895B/pt not_active IP Right Cessation
- 1986-12-09 AT AT86117166T patent/ATE51048T1/de not_active IP Right Cessation
- 1986-12-09 JP JP61293314A patent/JPS62141186A/ja active Granted
- 1986-12-10 FI FI865032A patent/FI85992C/fi not_active IP Right Cessation
- 1986-12-10 AU AU66407/86A patent/AU586304B2/en not_active Ceased
-
1987
- 1987-06-09 US US07/060,131 patent/US4853082A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0129918B2 (de) | 1989-06-14 |
NO163576C (no) | 1990-06-20 |
SE8505825L (sv) | 1987-06-11 |
NO163576B (no) | 1990-03-12 |
NZ218358A (en) | 1989-08-29 |
FI865032A0 (fi) | 1986-12-10 |
NO864943D0 (no) | 1986-12-09 |
US4853082A (en) | 1989-08-01 |
PT83895A (en) | 1987-01-01 |
JPS62141186A (ja) | 1987-06-24 |
SE451023B (sv) | 1987-08-24 |
NO864943L (no) | 1987-06-11 |
FI85992C (fi) | 1992-06-25 |
PT83895B (pt) | 1989-06-30 |
EP0225638A1 (de) | 1987-06-16 |
SE8505825D0 (sv) | 1985-12-10 |
EP0225638B1 (de) | 1990-03-14 |
FI865032A (fi) | 1987-06-11 |
AU6640786A (en) | 1987-06-11 |
ATE51048T1 (de) | 1990-03-15 |
FI85992B (fi) | 1992-03-13 |
AU586304B2 (en) | 1989-07-06 |
ES2014410B3 (es) | 1990-07-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: BARZ, P., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 80803 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |