SE9601709D0 - Treatment of filtrates in peroxide bleaching of pulp - Google Patents
Treatment of filtrates in peroxide bleaching of pulpInfo
- Publication number
- SE9601709D0 SE9601709D0 SE9601709A SE9601709A SE9601709D0 SE 9601709 D0 SE9601709 D0 SE 9601709D0 SE 9601709 A SE9601709 A SE 9601709A SE 9601709 A SE9601709 A SE 9601709A SE 9601709 D0 SE9601709 D0 SE 9601709D0
- Authority
- SE
- Sweden
- Prior art keywords
- gas
- filtrate
- pulp
- ozone
- stage
- Prior art date
Links
- 239000000706 filtrate Substances 0.000 title abstract 8
- 238000004061 bleaching Methods 0.000 title abstract 4
- 150000002978 peroxides Chemical class 0.000 title abstract 4
- 239000007789 gas Substances 0.000 abstract 9
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 6
- 238000005406 washing Methods 0.000 abstract 6
- 239000007788 liquid Substances 0.000 abstract 4
- 230000001590 oxidative effect Effects 0.000 abstract 3
- 229920002678 cellulose Polymers 0.000 abstract 2
- 239000001913 cellulose Substances 0.000 abstract 2
- 229920001131 Pulp (paper) Polymers 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 239000007844 bleaching agent Substances 0.000 abstract 1
- 239000012159 carrier gas Substances 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 235000019645 odor Nutrition 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US43529095A | 1995-05-05 | 1995-05-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE9601709D0 true SE9601709D0 (sv) | 1996-05-03 |
| SE9601709L SE9601709L (sv) | 1996-11-06 |
Family
ID=23727790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE9601709A SE9601709L (sv) | 1995-05-05 | 1996-05-03 | Behandling av filtrat vid peroxidblekning av massa |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH08325971A (sv) |
| CA (1) | CA2170553A1 (sv) |
| FI (1) | FI961856A7 (sv) |
| SE (1) | SE9601709L (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6348129B1 (en) | 2000-04-28 | 2002-02-19 | Praxair Technology Inc | Treatment of pulp mill condensate with ozone |
| FI117391B (sv) | 2000-05-16 | 2006-09-29 | Andritz Oy | Förfarande och anordning för behandling av massa |
| SE0300276L (sv) * | 2003-01-31 | 2003-12-09 | Kvaerner Pulping Tech | Förfarande för blekning av cellulosamassa samt bleklinje härför |
| JP5217540B2 (ja) * | 2008-03-18 | 2013-06-19 | 王子ホールディングス株式会社 | クラフトパルプの製造方法 |
| JP6409486B2 (ja) * | 2014-10-15 | 2018-10-24 | 王子ホールディングス株式会社 | クラフトパルプの製造方法及び製造装置 |
-
1996
- 1996-02-28 CA CA002170553A patent/CA2170553A1/en not_active Abandoned
- 1996-04-23 JP JP8101121A patent/JPH08325971A/ja active Pending
- 1996-05-02 FI FI961856A patent/FI961856A7/sv unknown
- 1996-05-03 SE SE9601709A patent/SE9601709L/sv not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE9601709L (sv) | 1996-11-06 |
| CA2170553A1 (en) | 1996-11-06 |
| JPH08325971A (ja) | 1996-12-10 |
| FI961856A7 (sv) | 1996-11-06 |
| FI961856A0 (sv) | 1996-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 9601709-0 |