WO2005080672A3 - Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps - Google Patents

Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps Download PDF

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Publication number
WO2005080672A3
WO2005080672A3 PCT/FI2005/000112 FI2005000112W WO2005080672A3 WO 2005080672 A3 WO2005080672 A3 WO 2005080672A3 FI 2005000112 W FI2005000112 W FI 2005000112W WO 2005080672 A3 WO2005080672 A3 WO 2005080672A3
Authority
WO
WIPO (PCT)
Prior art keywords
yield pulps
reducing
yield
peroxide bleaching
pulp
Prior art date
Application number
PCT/FI2005/000112
Other languages
French (fr)
Other versions
WO2005080672A2 (en
Inventor
Aarto Paren
Jukka Jaekaerae
Original Assignee
Kemira Oyj
Aarto Paren
Jukka Jaekaerae
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 Kemira Oyj, Aarto Paren, Jukka Jaekaerae filed Critical Kemira Oyj
Priority to US10/590,297 priority Critical patent/US20070272378A1/en
Priority to BRPI0507851-2A priority patent/BRPI0507851A/en
Priority to EP05717239A priority patent/EP1718801B1/en
Priority to DE602005002933T priority patent/DE602005002933T2/en
Priority to CA2553662A priority patent/CA2553662C/en
Publication of WO2005080672A2 publication Critical patent/WO2005080672A2/en
Publication of WO2005080672A3 publication Critical patent/WO2005080672A3/en

Links

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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
    • 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Steroid Compounds (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

The invention relates to a method for reducing the content of extractives of a high-yield pulp in a peroxide bleaching stage, said stage including peroxide bleaching and a subsequent dewatering or washing, said method comprising contacting the pulp in the peroxide bleaching with an organic stabilizer and in or after the peroxide bleaching with a surfactant, and thereafter subjecting the bleached pulp to said dewatering or washing for removing extractives along with the aqueous phase. The invention also relates to a method for producing bleached high-yield pulp.
PCT/FI2005/000112 2004-02-24 2005-02-23 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps WO2005080672A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US10/590,297 US20070272378A1 (en) 2004-02-24 2005-02-23 Method for Reducing the Extractives Content of High-Yield Pulps and Method for Producing Bleached High-Yield Pulps
BRPI0507851-2A BRPI0507851A (en) 2004-02-24 2005-02-23 method for reducing the content of high yield pulp extractive materials and method for producing bleached high yield pulps
EP05717239A EP1718801B1 (en) 2004-02-24 2005-02-23 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps
DE602005002933T DE602005002933T2 (en) 2004-02-24 2005-02-23 METHOD OF REDUCING THE EXTRACT CONTENT OF HIGH-PURITY CELL MATERIALS AND METHOD FOR PRODUCING BLEACHED HIGH-LIQUID PULPES
CA2553662A CA2553662C (en) 2004-02-24 2005-02-23 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20040282A FI121385B (en) 2004-02-24 2004-02-24 Process for Reducing Extract Substance in High Yield Masses and Process for Preparing Bleached High Yield Masses
FI20040282 2004-02-24

Publications (2)

Publication Number Publication Date
WO2005080672A2 WO2005080672A2 (en) 2005-09-01
WO2005080672A3 true WO2005080672A3 (en) 2005-12-08

Family

ID=31725758

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2005/000112 WO2005080672A2 (en) 2004-02-24 2005-02-23 Method for reducing the extractives content of high-yield pulps and method for producing bleached high-yield pulps

Country Status (9)

Country Link
US (1) US20070272378A1 (en)
EP (1) EP1718801B1 (en)
CN (1) CN100591842C (en)
AT (1) ATE376094T1 (en)
BR (1) BRPI0507851A (en)
CA (1) CA2553662C (en)
DE (1) DE602005002933T2 (en)
FI (1) FI121385B (en)
WO (1) WO2005080672A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20070126A0 (en) 2006-09-08 2007-02-13 Linde Ag Process for de-pulping and using carbon dioxide or (bi) carbonate for this
WO2013178875A1 (en) * 2012-05-29 2013-12-05 Kemira Oyj A process for the treatment of fibre material and a new composition
TW201610265A (en) 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 Bleaching and shive reduction process for non-wood fibers
TW201544652A (en) * 2014-05-20 2015-12-01 Georgia Pacific Consumer Prod Bleaching and shive reduction process for non-wood fibers
TW201610261A (en) 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 Bleaching and shive reduction process for non-wood fibers
KR102656393B1 (en) 2017-09-11 2024-04-12 솔레니스 테크놀러지스, 엘.피. Improved Oxygen Delignification Method for Chemical Wood Pulp
EP3877586A4 (en) * 2018-11-07 2022-06-29 Kemira Oyj A composition for use as peroxide stabilizer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363699A (en) * 1976-02-25 1982-12-14 Solvay & Cie. Process for stabilizing solutions of peroxidic compounds used for bleaching
DE3423452A1 (en) * 1984-06-26 1986-01-02 Sandoz-Patent-GmbH, 7850 Lörrach Stabilising mixture for the peroxide bleaching of cellulose-containing materials
US4963157A (en) * 1987-04-17 1990-10-16 Nippon Peroxide Co., Ltd. Method for bleaching cellulosic fiber material with hydrogen peroxide
JPH05331789A (en) * 1992-05-27 1993-12-14 Mitsubishi Gas Chem Co Inc Method for deinking and bleaching printed waste paper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5234544A (en) * 1989-10-18 1993-08-10 Air Products And Chemicals, Inc. Cleaning and bleaching of secondary fiber
DE4344029A1 (en) * 1993-12-23 1995-06-29 Grillo Werke Ag Copolymers of unsaturated carboxylic acids, process for their preparation and their use
CN1088484C (en) * 1999-06-15 2002-07-31 杭州市化工研究所 Resin obstruction controlling agent for paper making
PT1268932E (en) * 2000-03-23 2009-01-02 Hercules Inc Pitch and stickies control in pulp and papermaking processes

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4363699A (en) * 1976-02-25 1982-12-14 Solvay & Cie. Process for stabilizing solutions of peroxidic compounds used for bleaching
DE3423452A1 (en) * 1984-06-26 1986-01-02 Sandoz-Patent-GmbH, 7850 Lörrach Stabilising mixture for the peroxide bleaching of cellulose-containing materials
US4963157A (en) * 1987-04-17 1990-10-16 Nippon Peroxide Co., Ltd. Method for bleaching cellulosic fiber material with hydrogen peroxide
JPH05331789A (en) * 1992-05-27 1993-12-14 Mitsubishi Gas Chem Co Inc Method for deinking and bleaching printed waste paper

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 170 (C - 1182) 23 March 1994 (1994-03-23) *

Also Published As

Publication number Publication date
BRPI0507851A (en) 2007-07-10
WO2005080672A2 (en) 2005-09-01
EP1718801B1 (en) 2007-10-17
FI20040282A0 (en) 2004-02-24
CA2553662C (en) 2012-10-23
FI121385B (en) 2010-10-29
CN100591842C (en) 2010-02-24
CN1922359A (en) 2007-02-28
ATE376094T1 (en) 2007-11-15
US20070272378A1 (en) 2007-11-29
EP1718801A2 (en) 2006-11-08
DE602005002933D1 (en) 2007-11-29
CA2553662A1 (en) 2005-09-01
DE602005002933T2 (en) 2008-07-24
FI20040282A (en) 2005-08-25

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