FI20040282A - A process for reducing the extractant content of high-yield pulps and a process for preparing bleached high-yield pulps - Google Patents

A process for reducing the extractant content of high-yield pulps and a process for preparing bleached high-yield pulps Download PDF

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Publication number
FI20040282A
FI20040282A FI20040282A FI20040282A FI20040282A FI 20040282 A FI20040282 A FI 20040282A FI 20040282 A FI20040282 A FI 20040282A FI 20040282 A FI20040282 A FI 20040282A FI 20040282 A FI20040282 A FI 20040282A
Authority
FI
Finland
Prior art keywords
yield pulps
reducing
yield
peroxide bleaching
pulp
Prior art date
Application number
FI20040282A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20040282A0 (en
FI121385B (en
Inventor
Aarto Paren
Jukka Jaekaerae
Original Assignee
Kemira Oyj
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 filed Critical Kemira Oyj
Publication of FI20040282A0 publication Critical patent/FI20040282A0/en
Priority to FI20040282A priority Critical patent/FI121385B/en
Priority to EP05717239A priority patent/EP1718801B1/en
Priority to CA2553662A priority patent/CA2553662C/en
Priority to PCT/FI2005/000112 priority patent/WO2005080672A2/en
Priority to BRPI0507851-2A priority patent/BRPI0507851A/en
Priority to US10/590,297 priority patent/US20070272378A1/en
Priority to DE602005002933T priority patent/DE602005002933T2/en
Priority to CN200580005933A priority patent/CN100591842C/en
Priority to AT05717239T priority patent/ATE376094T1/en
Publication of FI20040282A publication Critical patent/FI20040282A/en
Application granted granted Critical
Publication of FI121385B publication Critical patent/FI121385B/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)
  • Extraction Or Liquid Replacement (AREA)
  • Steroid Compounds (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.
FI20040282A 2004-02-24 2004-02-24 Process for Reducing Extract Substance in High Yield Masses and Process for Preparing Bleached High Yield Masses FI121385B (en)

Priority Applications (9)

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
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
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
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
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
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
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
CN200580005933A CN100591842C (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
AT05717239T ATE376094T1 (en) 2004-02-24 2005-02-23 METHOD FOR REDUCING THE EXTRACT CONTENT OF HIGH YIELD PULP AND METHOD FOR PRODUCING BLEACHED HIGH YIELD PULP

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 (3)

Publication Number Publication Date
FI20040282A0 FI20040282A0 (en) 2004-02-24
FI20040282A true FI20040282A (en) 2005-08-25
FI121385B FI121385B (en) 2010-10-29

Family

ID=31725758

Family Applications (1)

Application Number Title Priority Date Filing Date
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

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
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
TW201544652A (en) * 2014-05-20 2015-12-01 Georgia Pacific Consumer Prod Bleaching and shive reduction process for non-wood fibers
CN111344455B (en) 2017-09-11 2022-10-28 索理思科技公司 Method for enhancing oxygen delignification of chemical wood pulp
EP3877586A4 (en) * 2018-11-07 2022-06-29 Kemira Oyj A composition for use as peroxide stabilizer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU74434A1 (en) * 1976-02-25 1977-09-12
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
US5234544A (en) * 1989-10-18 1993-08-10 Air Products And Chemicals, Inc. Cleaning and bleaching of secondary fiber
JP3191828B2 (en) * 1992-05-27 2001-07-23 三菱瓦斯化学株式会社 Deinking and bleaching of used printing paper
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
US6461477B1 (en) * 2000-03-23 2002-10-08 Hercules Incorporated Proteins and polymers for use as pitch and stickies control agents in pulp and papermaking processes

Also Published As

Publication number Publication date
EP1718801B1 (en) 2007-10-17
WO2005080672A3 (en) 2005-12-08
DE602005002933T2 (en) 2008-07-24
BRPI0507851A (en) 2007-07-10
DE602005002933D1 (en) 2007-11-29
EP1718801A2 (en) 2006-11-08
ATE376094T1 (en) 2007-11-15
CN1922359A (en) 2007-02-28
FI20040282A0 (en) 2004-02-24
CA2553662C (en) 2012-10-23
CA2553662A1 (en) 2005-09-01
US20070272378A1 (en) 2007-11-29
CN100591842C (en) 2010-02-24
FI121385B (en) 2010-10-29
WO2005080672A2 (en) 2005-09-01

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