EP1790771A4 - Pulp bleaching processes - Google Patents
Pulp bleaching processesInfo
- Publication number
- EP1790771A4 EP1790771A4 EP05748560A EP05748560A EP1790771A4 EP 1790771 A4 EP1790771 A4 EP 1790771A4 EP 05748560 A EP05748560 A EP 05748560A EP 05748560 A EP05748560 A EP 05748560A EP 1790771 A4 EP1790771 A4 EP 1790771A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- pulp bleaching
- bleaching processes
- processes
- 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- Withdrawn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
- 238000000034 method Methods 0.000 title 1
- 238000004076 pulp bleaching Methods 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
-
- 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 (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004169367A JP4603298B2 (en) | 2004-06-08 | 2004-06-08 | Pulp bleaching method |
JP2004289267A JP2006104587A (en) | 2004-09-30 | 2004-09-30 | Highly white-colored chemical pulp and method for producing the same |
JP2005102615A JP2006283213A (en) | 2005-03-31 | 2005-03-31 | Method and apparatus for bleaching pulp |
JP2005102558A JP2006283211A (en) | 2005-03-31 | 2005-03-31 | Method for bleaching chemical pulp |
PCT/JP2005/010521 WO2005121442A1 (en) | 2004-06-08 | 2005-06-08 | Method for bleaching pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1790771A1 EP1790771A1 (en) | 2007-05-30 |
EP1790771A4 true EP1790771A4 (en) | 2012-10-03 |
Family
ID=35503100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05748560A Withdrawn EP1790771A4 (en) | 2004-06-08 | 2005-06-08 | Pulp bleaching processes |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070246176A1 (en) |
EP (1) | EP1790771A4 (en) |
CA (1) | CA2569848C (en) |
WO (1) | WO2005121442A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7914646B2 (en) * | 2006-07-21 | 2011-03-29 | Nalco Company | Compositions and processes for paper production |
US20090324874A1 (en) * | 2006-11-09 | 2009-12-31 | Meijers Guido Jozefina Wihelmus | Process for the preparation of a panel |
FR2910027B1 (en) * | 2006-12-13 | 2009-11-06 | Itt Mfg Enterprises Inc | PROCESS FOR WHITENING CHEMICAL STRIPPING PASTES BY FINAL OZONE TREATMENT AT HIGH TEMPERATURE |
US7867359B2 (en) | 2008-04-30 | 2011-01-11 | Xyleco, Inc. | Functionalizing cellulosic and lignocellulosic materials |
US7867358B2 (en) * | 2008-04-30 | 2011-01-11 | Xyleco, Inc. | Paper products and methods and systems for manufacturing such products |
BRPI0909931B1 (en) | 2008-06-20 | 2020-04-07 | Int Paper Co | composition for use in papermaking, method for making an embossing sheet, method for forming an image and embossing sheet |
JP5938979B2 (en) * | 2012-03-23 | 2016-06-22 | 日本製紙株式会社 | Treatment method of plant-based materials |
CN104372704A (en) * | 2014-09-15 | 2015-02-25 | 岳阳林纸股份有限公司 | Chemical-mechanical pulp H2O2+OBA relay axurilary bleaching method |
US10143993B2 (en) * | 2015-08-18 | 2018-12-04 | Lam Research Corporation | Radical generator and method for generating ammonia radicals |
EP3521510A4 (en) * | 2016-09-30 | 2020-04-15 | Oji Holdings Corporation | Pulp, slurry, sheet, laminate, and method for manufacturing pulp |
CN115110329A (en) * | 2022-06-28 | 2022-09-27 | 中国制浆造纸研究院有限公司 | Method for reducing metal content and ash content in bleaching section pulp |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4294654A (en) * | 1980-03-21 | 1981-10-13 | International Paper Company | Delignification and bleaching of lignocellulosic pulp via photo-oxygenation |
WO1984000181A1 (en) * | 1982-06-24 | 1984-01-19 | Scott Paper Co | Ozone bleaching of cellulosic materials |
WO1994002680A1 (en) * | 1992-07-24 | 1994-02-03 | Kamyr, Inc. | Hydrocyclone photo-reactor |
JPH06128890A (en) * | 1992-10-20 | 1994-05-10 | Honshu Paper Co Ltd | Bleaching of pulp |
JP2002088673A (en) * | 2000-06-20 | 2002-03-27 | National Institute Of Advanced Industrial & Technology | Method for bleaching pulp |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
UST989185I4 (en) * | 1937-06-01 | |||
US5084344A (en) * | 1988-02-26 | 1992-01-28 | Mitsubishi Paper Mills Limited | Photographic support comprising a layer containing an electron beam hardened resin and white pigment of a thickness of 5-100 microns |
SE470538C (en) * | 1992-12-02 | 1996-02-26 | Kvaerner Pulping Tech | When bleaching pulp, use no chlorine-containing chemicals |
US6776876B1 (en) * | 1994-10-13 | 2004-08-17 | Andritz Oy | Method of treating cellulosic pulp to remove hexenuronic acid |
FI105701B (en) * | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Method and arrangement for treatment of pulp |
JPH09241988A (en) * | 1996-03-07 | 1997-09-16 | Mitsubishi Paper Mills Ltd | Ozone bleaching of pulp |
PL332079A1 (en) * | 1996-09-11 | 1999-08-30 | Solvay Interox Sa | Paper pulp bleaching method |
AU3404099A (en) * | 1998-04-17 | 1999-11-08 | Alberta Research Council Inc. | Method of producing lignocellulosic pulp from non-woody species |
JP3371228B2 (en) * | 2000-06-20 | 2003-01-27 | 独立行政法人産業技術総合研究所 | Pulp bleaching method |
JP3368336B2 (en) * | 2000-06-20 | 2003-01-20 | 独立行政法人産業技術総合研究所 | Pulp bleaching method |
JP4721308B2 (en) * | 2001-02-06 | 2011-07-13 | 独立行政法人産業技術総合研究所 | Method for bleaching cellulose derivatives |
JP2003040607A (en) * | 2001-07-31 | 2003-02-13 | Konpurasu Kk | Ozonizer |
JP2003165711A (en) * | 2001-11-26 | 2003-06-10 | Wakomu Denso:Kk | Ozone generating device |
-
2005
- 2005-06-08 EP EP05748560A patent/EP1790771A4/en not_active Withdrawn
- 2005-06-08 WO PCT/JP2005/010521 patent/WO2005121442A1/en active Application Filing
- 2005-06-08 US US11/628,961 patent/US20070246176A1/en not_active Abandoned
- 2005-06-08 CA CA2569848A patent/CA2569848C/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4294654A (en) * | 1980-03-21 | 1981-10-13 | International Paper Company | Delignification and bleaching of lignocellulosic pulp via photo-oxygenation |
WO1984000181A1 (en) * | 1982-06-24 | 1984-01-19 | Scott Paper Co | Ozone bleaching of cellulosic materials |
WO1994002680A1 (en) * | 1992-07-24 | 1994-02-03 | Kamyr, Inc. | Hydrocyclone photo-reactor |
JPH06128890A (en) * | 1992-10-20 | 1994-05-10 | Honshu Paper Co Ltd | Bleaching of pulp |
JP2002088673A (en) * | 2000-06-20 | 2002-03-27 | National Institute Of Advanced Industrial & Technology | Method for bleaching pulp |
Also Published As
Publication number | Publication date |
---|---|
WO2005121442A1 (en) | 2005-12-22 |
EP1790771A1 (en) | 2007-05-30 |
US20070246176A1 (en) | 2007-10-25 |
CA2569848C (en) | 2011-05-10 |
CA2569848A1 (en) | 2005-12-22 |
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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: 20070108 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): FI SE |
|
DAX | Request for extension of the european patent (deleted) | ||
RBV | Designated contracting states (corrected) |
Designated state(s): FI SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 20120830 |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: D21C 9/10 20060101AFI20120824BHEP |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Effective date: 20121120 |