SE0200981D0 - Process for bleaching lignocellulose-containing non-wood pulp - Google Patents

Process for bleaching lignocellulose-containing non-wood pulp

Info

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
Application number
SE0200981A
Other languages
Swedish (sv)
Inventor
Jiri Basta
Thomas Greschik
Gerd Waene
Original Assignee
Eka Chemicals Ab
Akzo Nobel Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Eka Chemicals Ab, Akzo Nobel Nv filed Critical Eka Chemicals Ab
Priority to SE0200981A priority Critical patent/SE0200981D0/en
Publication of SE0200981D0 publication Critical patent/SE0200981D0/en
Priority to AU2003216028A priority patent/AU2003216028B2/en
Priority to CNB038072785A priority patent/CN1312354C/en
Priority to PCT/SE2003/000512 priority patent/WO2003083208A1/en
Priority to CO04106973A priority patent/CO5611215A2/en

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.
SE0200981A 2002-03-28 2002-03-28 Process for bleaching lignocellulose-containing non-wood pulp SE0200981D0 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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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