SE0004194L - Massablekningsförfarande med reducerad bariumavsättning - Google Patents
Massablekningsförfarande med reducerad bariumavsättningInfo
- Publication number
- SE0004194L SE0004194L SE0004194A SE0004194A SE0004194L SE 0004194 L SE0004194 L SE 0004194L SE 0004194 A SE0004194 A SE 0004194A SE 0004194 A SE0004194 A SE 0004194A SE 0004194 L SE0004194 L SE 0004194L
- Authority
- SE
- Sweden
- Prior art keywords
- pulp bleaching
- bleaching procedure
- reduced barium
- deposition
- barium deposition
- Prior art date
Links
- 229910052788 barium Inorganic materials 0.000 title abstract 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 title abstract 2
- 230000008021 deposition Effects 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000004076 pulp bleaching Methods 0.000 title 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
- 239000004155 Chlorine dioxide Substances 0.000 abstract 1
- 229920001131 Pulp (paper) Polymers 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000004061 bleaching Methods 0.000 abstract 1
- 238000005660 chlorination reaction Methods 0.000 abstract 1
- 235000019398 chlorine dioxide Nutrition 0.000 abstract 1
- 239000000706 filtrate Substances 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/100,158 US6315863B1 (en) | 1998-06-18 | 1998-06-18 | Chlorine dioxide pulp bleaching process having reduced barium scaling by recycling post-chlorination waste filtrate |
PCT/US1999/012766 WO1999066120A1 (en) | 1998-06-18 | 1999-06-08 | Pulp bleaching process with reduced barium scaling |
Publications (2)
Publication Number | Publication Date |
---|---|
SE0004194D0 SE0004194D0 (sv) | 2000-11-16 |
SE0004194L true SE0004194L (sv) | 2001-02-19 |
Family
ID=22278379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0004194A SE0004194L (sv) | 1998-06-18 | 2000-11-16 | Massablekningsförfarande med reducerad bariumavsättning |
Country Status (5)
Country | Link |
---|---|
US (1) | US6315863B1 (sv) |
AU (1) | AU4426299A (sv) |
FI (1) | FI20002530A (sv) |
SE (1) | SE0004194L (sv) |
WO (1) | WO1999066120A1 (sv) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE516969C2 (sv) * | 2000-08-14 | 2002-03-26 | Metso Paper Inc | Klordioxidblekning i två steg med återföring av filtrat |
US20060090865A1 (en) * | 2004-01-13 | 2006-05-04 | Vidar Snekkenes | Method of bleaching cellulose pulp and bleaching line therefore |
AU2011229776B2 (en) | 2010-03-23 | 2013-11-28 | International Paper Company | Improved BCTMP filtrate recycling system and method |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE791246A (fr) | 1971-11-10 | 1973-05-10 | Hooker Chemical Corp | Procede de blanchiment de pulpe de dechets de |
US4104114A (en) * | 1977-05-05 | 1978-08-01 | Erco Envirotech Ltd. | Bleach plant operation |
CA1086905A (en) | 1977-10-25 | 1980-10-07 | W. Howard Rapson | Bleach plant operation |
US4229252A (en) | 1979-01-11 | 1980-10-21 | Weyerhaeuser Company | Additives for ozone bleaching |
US4238281A (en) * | 1979-04-30 | 1980-12-09 | Canadian International Paper Company | Simplified bleaching process |
US4298426A (en) | 1979-06-15 | 1981-11-03 | Weyerhaeuser Company | Method and apparatus for treating pulp with oxygen in a multi-stage bleaching sequence |
SE442881B (sv) * | 1980-11-27 | 1986-02-03 | Mo Och Domsjoe Ab | Forfarande for delignifiering/blekning av cellulosamassa med klordioxid |
US4543155A (en) | 1983-01-31 | 1985-09-24 | The Boc Group, Inc. | Method for bleaching wood pulp including dissolving oxygen into the dilution water of an extraction stage |
DE3937932A1 (de) | 1989-11-15 | 1991-05-16 | Holtzmann & Cie Ag E | Verfahren zum delignifizieren und bleichen von ungebleichten zellstoffsuspensionen mit alkalichlorit |
US5616278A (en) | 1993-08-13 | 1997-04-01 | Betzdearborn Inc. | Inhibition of scale and corrosion in aqueous systems |
US5554259A (en) | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
US5728264A (en) * | 1995-10-25 | 1998-03-17 | Union Camp Patent Holding, Inc. | Avoidance of salt scaling by acidic pulp washing process |
SE507742C2 (sv) | 1996-11-08 | 1998-07-06 | Sunds Defibrator Ind Ab | Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar |
-
1998
- 1998-06-18 US US09/100,158 patent/US6315863B1/en not_active Expired - Fee Related
-
1999
- 1999-06-08 AU AU44262/99A patent/AU4426299A/en not_active Abandoned
- 1999-06-08 WO PCT/US1999/012766 patent/WO1999066120A1/en active Application Filing
-
2000
- 2000-11-16 SE SE0004194A patent/SE0004194L/sv not_active Application Discontinuation
- 2000-11-17 FI FI20002530A patent/FI20002530A/sv unknown
Also Published As
Publication number | Publication date |
---|---|
WO1999066120A1 (en) | 1999-12-23 |
FI20002530A (sv) | 2000-11-17 |
AU4426299A (en) | 2000-01-05 |
US6315863B1 (en) | 2001-11-13 |
SE0004194D0 (sv) | 2000-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |