ATE263268T1 - Peroxide, sauerstoff, und peroxide/sauerstoff bleichen von zellstoffen und altpapierfaserstoffen - Google Patents
Peroxide, sauerstoff, und peroxide/sauerstoff bleichen von zellstoffen und altpapierfaserstoffenInfo
- Publication number
- ATE263268T1 ATE263268T1 AT98922379T AT98922379T ATE263268T1 AT E263268 T1 ATE263268 T1 AT E263268T1 AT 98922379 T AT98922379 T AT 98922379T AT 98922379 T AT98922379 T AT 98922379T AT E263268 T1 ATE263268 T1 AT E263268T1
- Authority
- AT
- Austria
- Prior art keywords
- peroxide
- oxygen
- peroxides
- molecular weight
- high molecular
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- 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
-
- 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
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 |
---|---|---|---|
PCT/US1998/010070 WO1999060201A2 (en) | 1998-05-15 | 1998-05-15 | Peroxide, oxygen, and peroxide/oxygen brightening of chemical and mixed waste pulps |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE263268T1 true ATE263268T1 (de) | 2004-04-15 |
Family
ID=22267079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT98922379T ATE263268T1 (de) | 1998-05-15 | 1998-05-15 | Peroxide, sauerstoff, und peroxide/sauerstoff bleichen von zellstoffen und altpapierfaserstoffen |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1088130B1 (de) |
AT (1) | ATE263268T1 (de) |
AU (1) | AU7493898A (de) |
CA (1) | CA2332304C (de) |
DE (1) | DE69822893D1 (de) |
MX (1) | MXPA00011196A (de) |
WO (1) | WO1999060201A2 (de) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2557605B1 (fr) * | 1983-12-29 | 1987-12-11 | Atochem | Procede de blanchiment de pates papetieres par le peroxyde d'hydrogene |
US4915785A (en) * | 1988-12-23 | 1990-04-10 | C-I-L Inc. | Single stage process for bleaching of pulp with an aqueous hydrogen peroxide bleaching composition containing magnesium sulphate and sodium silicate |
SE500353C2 (sv) * | 1992-10-26 | 1994-06-06 | Sca Wifsta Oestrand Ab | Peroxidblekning av sulfatmassa med tillsats av magnesium före blekningen |
-
1998
- 1998-05-15 EP EP98922379A patent/EP1088130B1/de not_active Expired - Lifetime
- 1998-05-15 CA CA002332304A patent/CA2332304C/en not_active Expired - Lifetime
- 1998-05-15 AU AU74938/98A patent/AU7493898A/en not_active Abandoned
- 1998-05-15 MX MXPA00011196A patent/MXPA00011196A/es not_active IP Right Cessation
- 1998-05-15 DE DE69822893T patent/DE69822893D1/de not_active Expired - Lifetime
- 1998-05-15 AT AT98922379T patent/ATE263268T1/de not_active IP Right Cessation
- 1998-05-15 WO PCT/US1998/010070 patent/WO1999060201A2/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO1999060201A2 (en) | 1999-11-25 |
EP1088130B1 (de) | 2004-03-31 |
DE69822893D1 (de) | 2004-05-06 |
CA2332304A1 (en) | 1999-11-25 |
EP1088130A2 (de) | 2001-04-04 |
WO1999060201A3 (en) | 2000-08-03 |
CA2332304C (en) | 2005-01-11 |
MXPA00011196A (es) | 2003-04-22 |
AU7493898A (en) | 1999-12-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |