SE9601709L - Behandling av filtrat vid peroxidblekning av massa - Google Patents
Behandling av filtrat vid peroxidblekning av massaInfo
- Publication number
- SE9601709L SE9601709L SE9601709A SE9601709A SE9601709L SE 9601709 L SE9601709 L SE 9601709L SE 9601709 A SE9601709 A SE 9601709A SE 9601709 A SE9601709 A SE 9601709A SE 9601709 L SE9601709 L SE 9601709L
- 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 SE9601709D0 (sv) | 1996-05-03 |
SE9601709L true 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 (xx) |
CA (1) | CA2170553A1 (xx) |
FI (1) | FI961856A (xx) |
SE (1) | SE9601709L (xx) |
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 (fi) | 2000-05-16 | 2006-09-29 | Andritz Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
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/FI961856A/fi unknown
- 1996-05-03 SE SE9601709A patent/SE9601709L/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FI961856A0 (fi) | 1996-05-02 |
FI961856A (fi) | 1996-11-06 |
CA2170553A1 (en) | 1996-11-06 |
JPH08325971A (ja) | 1996-12-10 |
SE9601709D0 (sv) | 1996-05-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA1137257A (en) | Ozone effluent bleaching | |
DE69415619D1 (de) | Behandlung von bleichanlageabwässern | |
RU97107353A (ru) | Способ удаления групп гексенуроновых кислот из целлюлозы путем термообработки | |
WO1994023118A3 (en) | Bleaching recycled pulp with a reductive-oxidative sequence | |
ATE103351T1 (de) | Verfahren zum bleichen von zellstoff. | |
SE9601709L (sv) | Behandling av filtrat vid peroxidblekning av massa | |
DE69113444D1 (de) | Verfahren zum bleichen von chemischem papierzellstoff. | |
CA2347454A1 (en) | Method and apparatus for treating pulp | |
CA2107764A1 (en) | Combined ozone destruction and fiber scrubbing in paper pulp mills | |
ES2038954A6 (es) | Metodo para blanquear pasta de papel. | |
AU565124B2 (en) | Hypochlorite treatment of chemical paper pulps | |
JPH0217678B2 (xx) | ||
JP2008184719A (ja) | 漂白工程前に酸処理工程を有するクラフトパルプの製造工程における酸処理工程排水の再利用方法 | |
US6059925A (en) | Method to regenerate gas mixture in ozone-bleaching process | |
FI934056A (fi) | Menetelmä massan valkaisemiseksi | |
RU2142529C1 (ru) | Способ отбелки целлюлозы | |
ES2116952T1 (es) | Metodo para regenerar un gas que contiene ozono presente en una instalacion de blanqueo de pastas papeleras. | |
JPH0978447A (ja) | オゾン漂白方法および漂白装置 | |
SE9603630D0 (sv) | Förfarande för blekning av massa | |
KR940006926A (ko) | 염색폐액처리방법 | |
JP2009221638A (ja) | クラフトパルプの製造方法 | |
JPH07279075A (ja) | パルプ漂白方法 | |
SE9303233D0 (sv) | Sätt vid klorfri blekning av massa | |
TH19257A (th) | วิธีการฟอกจางเยื่อ |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9601709-0 |