SE0200981D0 - Process for bleaching lignocellulose-containing non-wood pulp - Google Patents
Process for bleaching lignocellulose-containing non-wood pulpInfo
- Publication number
- SE0200981D0 SE0200981D0 SE0200981A SE0200981A SE0200981D0 SE 0200981 D0 SE0200981 D0 SE 0200981D0 SE 0200981 A SE0200981 A SE 0200981A SE 0200981 A SE0200981 A SE 0200981A SE 0200981 D0 SE0200981 D0 SE 0200981D0
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- lignocellulose
- bleaching
- wood pulp
- containing non
- Prior art date
Links
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
The present invention refers to a process for bleaching lignocellulose-containing pulp comprising pulp obtainable from lignocellulose-containing materials selected from the group consisting of non-wood with a peroxide-containing compound, where the pulp prior to the bleaching is treated with chlorine dioxide, characterised in that the pulp after the treatment with chlorine dioxide is treated in a separate stage with a chelating agent at a pH up to about 2.9 and washed between the chlorine dioxide treatment and chelating agent treatment.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200981A SE0200981D0 (en) | 2002-03-28 | 2002-03-28 | Process for bleaching lignocellulose-containing non-wood pulp |
AU2003216028A AU2003216028B2 (en) | 2002-03-28 | 2003-03-27 | Process for bleaching lignocellulose-containing non-wood pulp |
CNB038072785A CN1312354C (en) | 2002-03-28 | 2003-03-27 | Process for bleaching lignocellulose-containing non-wood pulp |
PCT/SE2003/000512 WO2003083208A1 (en) | 2002-03-28 | 2003-03-27 | Process for bleaching lignocellulose-containing non-wood pulp |
CO04106973A CO5611215A2 (en) | 2002-03-28 | 2004-10-25 | PROCESS FOR WHITENING OF PULP OF NON-WOODEN MATERIALS CONTAINING LIGNOCELLULOSE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0200981A SE0200981D0 (en) | 2002-03-28 | 2002-03-28 | Process for bleaching lignocellulose-containing non-wood pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
SE0200981D0 true SE0200981D0 (en) | 2002-03-28 |
Family
ID=20287449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE0200981A SE0200981D0 (en) | 2002-03-28 | 2002-03-28 | Process for bleaching lignocellulose-containing non-wood pulp |
Country Status (5)
Country | Link |
---|---|
CN (1) | CN1312354C (en) |
AU (1) | AU2003216028B2 (en) |
CO (1) | CO5611215A2 (en) |
SE (1) | SE0200981D0 (en) |
WO (1) | WO2003083208A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050051288A1 (en) * | 2003-09-09 | 2005-03-10 | Caifang Yin | Extended retention and medium consistency pulp treatment |
FI123102B (en) * | 2006-03-31 | 2012-11-15 | Laennen Tutkimus Western Res Inc Oy | Chemical pulp bleaching process |
FI122626B (en) | 2006-03-31 | 2012-04-30 | Laennen Tutkimus Western Res Inc Oy | Chemical pulp bleaching process |
JP4967451B2 (en) | 2006-05-17 | 2012-07-04 | 三菱瓦斯化学株式会社 | Method for producing bleached pulp |
CN101451312B (en) * | 2007-12-05 | 2012-05-02 | 山东福荫造纸环保科技有限公司 | Method for preparing bleached chemical pulp by using grass type plants as raw materials |
CN101451313B (en) * | 2007-12-05 | 2012-01-25 | 山东福荫造纸环保科技有限公司 | Method for preparing bleached chemical pulp by using grass type plants as raw materials |
CN101812812B (en) * | 2009-02-25 | 2012-08-08 | 山东福荫造纸环保科技有限公司 | Elemental chlorine free bleaching method for plant fiber stuff |
CN104179056A (en) * | 2013-05-23 | 2014-12-03 | 中国制浆造纸研究院 | Wheat straw pulp elemental-chlorine-free bleaching wastewater recycling method |
CN104928964B (en) * | 2014-03-18 | 2017-02-15 | 中国科学院大连化学物理研究所 | Method for reducing generation of dioxins in non-wood pulp papermaking chlorine bleaching process |
KR101806632B1 (en) * | 2015-12-04 | 2018-01-11 | 현대자동차주식회사 | Wet paper friction material |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69420306T2 (en) * | 1993-04-20 | 2000-04-20 | Eka Chemicals Ab Bohus | Process for bleaching lignocellulosic pulp |
SE502706E (en) * | 1994-04-05 | 1999-06-18 | Mo Och Domsjoe Ab | Preparation of bleached cellulose pulp by bleaching with chlorine dioxide and treatment of complexing agents in the same step |
SE514697C2 (en) * | 1994-08-31 | 2001-04-02 | Valmet Fibertech Ab | Elimination of metal ions in pulp bleaching |
SE507742C2 (en) * | 1996-11-08 | 1998-07-06 | Sunds Defibrator Ind Ab | Bleaching of pulp with chlorine dioxide, alkali and complexing agents without intermediate washes |
US6302997B1 (en) * | 1999-08-30 | 2001-10-16 | North Carolina State University | Process for producing a pulp suitable for papermaking from nonwood fibrous materials |
-
2002
- 2002-03-28 SE SE0200981A patent/SE0200981D0/en unknown
-
2003
- 2003-03-27 WO PCT/SE2003/000512 patent/WO2003083208A1/en not_active Application Discontinuation
- 2003-03-27 CN CNB038072785A patent/CN1312354C/en not_active Expired - Fee Related
- 2003-03-27 AU AU2003216028A patent/AU2003216028B2/en not_active Ceased
-
2004
- 2004-10-25 CO CO04106973A patent/CO5611215A2/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
CO5611215A2 (en) | 2006-02-28 |
AU2003216028B2 (en) | 2006-03-16 |
AU2003216028A1 (en) | 2003-10-13 |
CN1312354C (en) | 2007-04-25 |
CN1643209A (en) | 2005-07-20 |
WO2003083208A1 (en) | 2003-10-09 |
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