SE8603593L - Forfarande for oxidativ eller reduktiv blekning av tremassa - Google Patents
Forfarande for oxidativ eller reduktiv blekning av tremassaInfo
- Publication number
- SE8603593L SE8603593L SE8603593A SE8603593A SE8603593L SE 8603593 L SE8603593 L SE 8603593L SE 8603593 A SE8603593 A SE 8603593A SE 8603593 A SE8603593 A SE 8603593A SE 8603593 L SE8603593 L SE 8603593L
- Authority
- SE
- Sweden
- Prior art keywords
- oxidative
- wood pulp
- reductive
- tremass
- whitening
- 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
-
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853531563 DE3531563A1 (de) | 1985-09-04 | 1985-09-04 | Holzstoffbleiche |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8603593D0 SE8603593D0 (sv) | 1986-08-26 |
SE8603593L true SE8603593L (sv) | 1987-03-05 |
SE467162B SE467162B (sv) | 1992-06-01 |
Family
ID=6280104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8603593A SE467162B (sv) | 1985-09-04 | 1986-08-26 | Foerfarande foer oxidativ blekning av traemassa vilket utfoers i naervaro av ett reduktionsmedel |
Country Status (5)
Country | Link |
---|---|
US (1) | US4752354A (sv) |
CA (1) | CA1332665C (sv) |
DE (1) | DE3531563A1 (sv) |
FI (1) | FI79566C (sv) |
SE (1) | SE467162B (sv) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8826431D0 (en) * | 1988-11-11 | 1988-12-14 | Albright & Wilson | Phosphate composition |
DE4301802A1 (de) * | 1993-01-23 | 1994-07-28 | Basf Ag | Verfahren zur Erhöhung der Weiße von chlorfrei gebleichtem Zellstoff |
DE4319935A1 (de) * | 1993-06-16 | 1994-12-22 | Basf Ag | Verwendung von Glycin-N,N-diessigsäure-Derivaten als Komplexbildner für Erdalkali- und Schwermetallionen |
CZ286131B6 (cs) * | 1993-10-26 | 2000-01-12 | Akzo Nobel N. V. | Aminoalkandifosfonové kyseliny v bělení buničiny |
SE505980C2 (sv) * | 1993-12-23 | 1997-10-27 | Bim Kemi Ab | Sätt att förhindra peroxidnedbrytande enzymer vid blekning med väteperoxid |
ATE174644T1 (de) * | 1994-03-24 | 1999-01-15 | Procter & Gamble | Wärmebehandelte fasern mit einem hohen ligningehalt |
SE9604414D0 (sv) * | 1996-11-29 | 1996-11-29 | Eka Chemicals Ab | Chemical composition |
SE9604413D0 (sv) * | 1996-11-29 | 1996-11-29 | Eka Chemicals Ab | Chemical composition |
US20040200588A1 (en) * | 2003-04-10 | 2004-10-14 | Walker Jayne M.A. | Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes |
DE102004050278A1 (de) * | 2004-10-14 | 2006-04-27 | Basf Ag | Helle bis weiße Holzwerkstoffplatten |
US20080210395A1 (en) * | 2005-06-29 | 2008-09-04 | Basf Aktiengesellschaft | Light-Colored Engineered Wood Boards |
ATE396851T1 (de) * | 2005-10-13 | 2008-06-15 | Glunz Ag | Verfahren zur herstellung von hellfarbigen oder in hellen farben eingefärbten holzfaserplatten |
EP2225175B1 (en) * | 2007-12-13 | 2012-12-12 | Akzo Nobel N.V. | Stabilized hydrogen peroxide solutions |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE548769A (sv) * | 1955-07-08 | |||
SE416481B (sv) * | 1977-05-02 | 1981-01-05 | Mo Och Domsjoe Ab | Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts |
DE3338260C1 (de) * | 1983-10-21 | 1985-07-25 | Benckiser-Knapsack Gmbh, 6802 Ladenburg | Verfahren und Mittel zum Bleichen von Holzschliff |
-
1985
- 1985-09-04 DE DE19853531563 patent/DE3531563A1/de active Granted
-
1986
- 1986-04-07 FI FI861481A patent/FI79566C/sv not_active IP Right Cessation
- 1986-07-21 US US06/887,428 patent/US4752354A/en not_active Expired - Fee Related
- 1986-08-26 SE SE8603593A patent/SE467162B/sv not_active IP Right Cessation
- 1986-08-28 CA CA000517065A patent/CA1332665C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FI79566C (sv) | 1990-01-10 |
CA1332665C (en) | 1994-10-25 |
FI861481A (fi) | 1987-03-05 |
DE3531563C2 (sv) | 1989-05-03 |
FI861481A0 (fi) | 1986-04-07 |
SE467162B (sv) | 1992-06-01 |
US4752354A (en) | 1988-06-21 |
DE3531563A1 (de) | 1987-03-05 |
FI79566B (fi) | 1989-09-29 |
SE8603593D0 (sv) | 1986-08-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8603593D0 (sv) | Forfarande for oxidativ eller reduktiv blekning av tremassa | |
JPS5646809A (en) | Glycolic acid oxidase inhibitor of 44*substituted thiazolyl**33hydroxyy33 pyrrolinee2*55dione | |
DE3468454D1 (en) | Process for the treatment of cellulosic materials with oxidising agents | |
GR3002022T3 (en) | 3,5-disubstituted 4,5-dihydroisoxazoles as transglutaminase inhibitors | |
FI865100A (fi) | Foerfarande foer blekning och delignifiering av cellulosahaltiga produkter. | |
DE3471705D1 (en) | Process for bleaching ground wood pulp | |
FR2434141A1 (fr) | Agent chelatant notamment l'acide n-(2-aminoethyl)-1, 3-propanediamine, n, n, n', n'', n''-pentaacetique, chelates d'un metal lourd le contenant, procede de preparation de l'agent chelatant et son utilisation pour le blanchiment de la pate de bois | |
PT90483A (pt) | Processo para a proteccao de produtos alimentares contra a oxidacao | |
FI793720A (fi) | Foerfarande foer faergfoerbaettring och luktborttagning av sulfatmassa | |
SE7904430L (sv) | Massablekning | |
FI863193A0 (fi) | Foerfarande foer delignifiering av cellulosamaterial. | |
FI863194A (fi) | Foerfarande foer delignifiering av cellulosamaterial. | |
ES2048468T3 (es) | Procedimiento para carbonato sodico perhidrato. | |
FR2367860A1 (fr) | Procede de preparation de pate de bois | |
EG18178A (en) | Process for bleaching textiles in the presence of particles of iron or of ferrouse materials | |
ES8206379A1 (es) | Procedimiento de obtencion de pirofosfato tetrasodico alca- lino puro |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAL | Patent in force |
Ref document number: 8603593-8 Format of ref document f/p: F |
|
NUG | Patent has lapsed |
Ref document number: 8603593-8 Format of ref document f/p: F |