EP2276883A4 - Method of bleaching pulp with ozone, chlorine dioxide and peroxide - Google Patents
Method of bleaching pulp with ozone, chlorine dioxide and peroxideInfo
- Publication number
- EP2276883A4 EP2276883A4 EP09746853.2A EP09746853A EP2276883A4 EP 2276883 A4 EP2276883 A4 EP 2276883A4 EP 09746853 A EP09746853 A EP 09746853A EP 2276883 A4 EP2276883 A4 EP 2276883A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- ozone
- peroxide
- chlorine dioxide
- bleaching pulp
- bleaching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 title 2
- 239000004155 Chlorine dioxide Substances 0.000 title 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title 1
- 238000004061 bleaching Methods 0.000 title 1
- 235000019398 chlorine dioxide Nutrition 0.000 title 1
- MAYPHUUCLRDEAZ-UHFFFAOYSA-N chlorine peroxide Inorganic materials ClOOCl MAYPHUUCLRDEAZ-UHFFFAOYSA-N 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 150000002978 peroxides Chemical class 0.000 title 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
-
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
-
- 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
- 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
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
-
- 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
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
-
- 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
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 |
---|---|---|---|
SE0801074A SE532470C2 (en) | 2008-05-13 | 2008-05-13 | Final bleaching of oxygen delignified pulp with ozone, chlorine dioxide and peroxide |
PCT/SE2009/050422 WO2009139693A1 (en) | 2008-05-13 | 2009-04-23 | Method of bleaching pulp with ozone, chlorine dioxide and peroxide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2276883A1 EP2276883A1 (en) | 2011-01-26 |
EP2276883A4 true EP2276883A4 (en) | 2014-04-02 |
Family
ID=41318911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09746853.2A Withdrawn EP2276883A4 (en) | 2008-05-13 | 2009-04-23 | Method of bleaching pulp with ozone, chlorine dioxide and peroxide |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2276883A4 (en) |
JP (1) | JP5478610B2 (en) |
CN (1) | CN102027167B (en) |
SE (1) | SE532470C2 (en) |
WO (1) | WO2009139693A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE532370C2 (en) * | 2008-02-28 | 2009-12-29 | Metso Paper Inc | Method of bleaching a pulp |
SE1650050A1 (en) * | 2016-01-18 | 2017-04-25 | Valmet Oy | Chlorine dioxide stage for controlling viscosity in dissolving pulps |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005076150A (en) * | 2003-09-01 | 2005-03-24 | Daio Paper Corp | Method for bleaching kraft pulp |
JP2006083506A (en) * | 2004-09-17 | 2006-03-30 | Mitsubishi Gas Chem Co Inc | Method for semi-bleaching chemical pulp for papermaking |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE467260B (en) * | 1989-12-29 | 1992-06-22 | Kamyr Ab | WHITING CELLULOSAMASSA WITH CHLORIDE Dioxide AND OZONE IN ONE AND SAME STEP |
ZA924351B (en) * | 1991-06-27 | 1993-03-31 | Ahlstroem Oy | Ozone bleaching process |
FR2768442B1 (en) * | 1997-09-15 | 1999-10-15 | Air Liquide | PROCESS FOR BLEACHING A PULP WITH OZONE AND CHLORINE DIOXIDE |
CN1297085A (en) * | 1999-11-19 | 2001-05-30 | 普拉塞尔技术有限公司 | Method for use of activated ozone in bleaching paper pulp |
CN1176269C (en) * | 2002-08-01 | 2004-11-17 | 山东轻工业学院 | Paper pulp bleaching process |
JP4894127B2 (en) * | 2003-06-06 | 2012-03-14 | 日本製紙株式会社 | Method for bleaching lignocellulosic material |
CN101067287B (en) * | 2007-05-31 | 2011-07-27 | 王光建 | Producing technology for microcrystalline cellulose with waste acid cotton linter |
-
2008
- 2008-05-13 SE SE0801074A patent/SE532470C2/en unknown
-
2009
- 2009-04-23 WO PCT/SE2009/050422 patent/WO2009139693A1/en active Application Filing
- 2009-04-23 CN CN200980117590.3A patent/CN102027167B/en not_active Expired - Fee Related
- 2009-04-23 JP JP2011509438A patent/JP5478610B2/en not_active Expired - Fee Related
- 2009-04-23 EP EP09746853.2A patent/EP2276883A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005076150A (en) * | 2003-09-01 | 2005-03-24 | Daio Paper Corp | Method for bleaching kraft pulp |
JP2006083506A (en) * | 2004-09-17 | 2006-03-30 | Mitsubishi Gas Chem Co Inc | Method for semi-bleaching chemical pulp for papermaking |
Non-Patent Citations (1)
Title |
---|
See also references of WO2009139693A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP2276883A1 (en) | 2011-01-26 |
CN102027167B (en) | 2013-06-12 |
JP5478610B2 (en) | 2014-04-23 |
SE0801074L (en) | 2009-11-14 |
SE532470C2 (en) | 2010-02-02 |
WO2009139693A1 (en) | 2009-11-19 |
JP2011521116A (en) | 2011-07-21 |
CN102027167A (en) | 2011-04-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20101020 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20140304 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D21C 9/10 20060101AFI20140226BHEP Ipc: D21C 9/153 20060101ALI20140226BHEP Ipc: D21C 9/14 20060101ALI20140226BHEP Ipc: D21C 9/16 20060101ALI20140226BHEP |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: VALMET TECHNOLOGIES, INC. |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D21C 9/153 20060101ALI20160823BHEP Ipc: D21C 9/10 20060101AFI20160823BHEP Ipc: D21C 9/16 20060101ALI20160823BHEP Ipc: D21C 9/14 20060101ALI20160823BHEP |
|
INTG | Intention to grant announced |
Effective date: 20160914 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20170125 |