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
- 150000002978 peroxides Chemical class 0.000 title abstract 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract 6
- 239000001301 oxygen Substances 0.000 title abstract 6
- 229910052760 oxygen Inorganic materials 0.000 title abstract 6
- 239000000835 fiber Substances 0.000 title abstract 2
- 238000004061 bleaching Methods 0.000 title 1
- 239000010893 paper waste Substances 0.000 title 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 4
- 150000002681 magnesium compounds Chemical class 0.000 abstract 3
- 150000004760 silicates Chemical class 0.000 abstract 3
- 229910019440 Mg(OH) Inorganic materials 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 150000001768 cations Chemical class 0.000 abstract 2
- 229920005610 lignin Polymers 0.000 abstract 2
- 150000001451 organic peroxides Chemical class 0.000 abstract 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000004115 Sodium Silicate Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000005282 brightening Methods 0.000 abstract 1
- 150000001720 carbohydrates Chemical class 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000006116 polymerization reaction Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052911 sodium silicate Inorganic materials 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052723 transition metal Inorganic materials 0.000 abstract 1
- 150000003624 transition metals Chemical class 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 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
- 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 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 MX MXPA00011196A patent/MXPA00011196A/es not_active IP Right Cessation
- 1998-05-15 WO PCT/US1998/010070 patent/WO1999060201A2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| MXPA00011196A (es) | 2003-04-22 |
| EP1088130A2 (de) | 2001-04-04 |
| EP1088130B1 (de) | 2004-03-31 |
| CA2332304A1 (en) | 1999-11-25 |
| DE69822893D1 (de) | 2004-05-06 |
| AU7493898A (en) | 1999-12-06 |
| WO1999060201A2 (en) | 1999-11-25 |
| WO1999060201A3 (en) | 2000-08-03 |
| CA2332304C (en) | 2005-01-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |