FI974221A0 - Effektiverat foerfarande foer blekning av en kemisk massa - Google Patents

Effektiverat foerfarande foer blekning av en kemisk massa

Info

Publication number
FI974221A0
FI974221A0 FI974221A FI974221A FI974221A0 FI 974221 A0 FI974221 A0 FI 974221A0 FI 974221 A FI974221 A FI 974221A FI 974221 A FI974221 A FI 974221A FI 974221 A0 FI974221 A0 FI 974221A0
Authority
FI
Finland
Prior art keywords
pulp
chemical mass
dicarboxylethoxy
ethyl
chlorine dioxide
Prior art date
Application number
FI974221A
Other languages
English (en)
Other versions
FI105214B (fi
FI974221A (fi
Inventor
Jukka Jaekaerae
Reijo Aksela
Aarto Paren
Ilkka Renvall
Original Assignee
Kemira Chemicals Oy
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 Chemicals Oy filed Critical Kemira Chemicals Oy
Publication of FI974221A0 publication Critical patent/FI974221A0/fi
Priority to FI974221A priority Critical patent/FI105214B/fi
Priority to AU12365/99A priority patent/AU1236599A/en
Priority to PCT/FI1998/000887 priority patent/WO1999025919A1/fi
Priority to AT98955593T priority patent/ATE213290T1/de
Priority to EP98955593A priority patent/EP1030943B1/en
Priority to DE69803874T priority patent/DE69803874T2/de
Priority to US09/554,331 priority patent/US6331192B1/en
Priority to ES98955593T priority patent/ES2172240T3/es
Priority to CA002310038A priority patent/CA2310038C/en
Priority to IDW20001119A priority patent/ID25541A/id
Priority to PT98955593T priority patent/PT1030943E/pt
Publication of FI974221A publication Critical patent/FI974221A/fi
Application granted granted Critical
Publication of FI105214B publication Critical patent/FI105214B/fi

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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Materials For Medical Uses (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FI974221A 1997-11-13 1997-11-13 Tehostettu kemiallisen massan valkaisumenetelmä FI105214B (fi)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FI974221A FI105214B (fi) 1997-11-13 1997-11-13 Tehostettu kemiallisen massan valkaisumenetelmä
US09/554,331 US6331192B1 (en) 1997-11-13 1998-11-13 Bleaching of chemical pulp and treatment with a chelating agent
PCT/FI1998/000887 WO1999025919A1 (fi) 1997-11-13 1998-11-13 Enhanced process for the bleaching of chemical pulp_____________
AT98955593T ATE213290T1 (de) 1997-11-13 1998-11-13 Bleichen von chemischem zellstoff und behandlung mit einem komplexbildner
EP98955593A EP1030943B1 (en) 1997-11-13 1998-11-13 Bleaching of chemical pulp and treatment with a chelating agent
DE69803874T DE69803874T2 (de) 1997-11-13 1998-11-13 Bleichen von chemischem zellstoff und behandlung mit einem komplexbildner
AU12365/99A AU1236599A (en) 1997-11-13 1998-11-13 Bleaching of chemical pulp and treatment with a chelating agent
ES98955593T ES2172240T3 (es) 1997-11-13 1998-11-13 Blanqueo de pasta quimica y tratamiento con un agente quelante.
CA002310038A CA2310038C (en) 1997-11-13 1998-11-13 Bleaching of chemical pulp and treatment with a chelating agent
IDW20001119A ID25541A (id) 1997-11-13 1998-11-13 Pemutihan bubur kertas kimia dan pengolahannya dengan zat pengelat
PT98955593T PT1030943E (pt) 1997-11-13 1998-11-13 Branqueamento de pasta quimica e tratamento com um agente quelante

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974221A FI105214B (fi) 1997-11-13 1997-11-13 Tehostettu kemiallisen massan valkaisumenetelmä
FI974221 1997-11-13

Publications (3)

Publication Number Publication Date
FI974221A0 true FI974221A0 (fi) 1997-11-13
FI974221A FI974221A (fi) 1999-05-14
FI105214B FI105214B (fi) 2000-06-30

Family

ID=8549932

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974221A FI105214B (fi) 1997-11-13 1997-11-13 Tehostettu kemiallisen massan valkaisumenetelmä

Country Status (11)

Country Link
US (1) US6331192B1 (fi)
EP (1) EP1030943B1 (fi)
AT (1) ATE213290T1 (fi)
AU (1) AU1236599A (fi)
CA (1) CA2310038C (fi)
DE (1) DE69803874T2 (fi)
ES (1) ES2172240T3 (fi)
FI (1) FI105214B (fi)
ID (1) ID25541A (fi)
PT (1) PT1030943E (fi)
WO (1) WO1999025919A1 (fi)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI106258B (fi) 1998-03-09 2000-12-29 Kemira Chemicals Oy Menetelmiä N-bis-[2-(1,2-dikarboksi-etoksi)-etyyli]amiinijohdannaisen valmistamiseksi sekä menetelmien tuotteet ja niiden käytöt
DE60020318T2 (de) * 1999-09-03 2006-05-18 Nippon Shokubai Co., Ltd. Zusammensetzung von Aminosäure-Derivaten und Verfahren zur Herstellung von einem Aminosäure-Derivat
FI123102B (fi) * 2006-03-31 2012-11-15 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
FI122626B (fi) * 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
CN103088699B (zh) 2008-06-20 2015-04-22 国际纸业公司 具有改良光学特性的组合物和记录片材
FI123926B (fi) 2012-04-03 2013-12-13 Upm Kymmene Corp Menetelmä sellun valkaisemiseksi
CN104294613B (zh) * 2014-08-08 2019-08-30 广东羽威农业集团有限公司 一种高蓬松度的纯白抗菌羽绒及其制备方法
WO2016159403A1 (ko) * 2015-03-30 2016-10-06 주식회사 아시아모빌 킬레이트 화합물을 이용한 펄프 표백방법
FI128968B (fi) 2020-03-31 2021-04-15 Chempolis Oy Selluloosamassan peroksidivalkaisu

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4340043A1 (de) * 1993-11-24 1995-06-01 Henkel Kgaa Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche
SE502706E (sv) 1994-04-05 1999-09-27 Mo Och Domsjoe Ab Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg
CA2173824A1 (en) * 1995-04-27 1996-10-28 Brian A. Parker Ethylenediaminetriacetic acid and salts thereof as chelating agents in pulp bleaching
FI104572B (fi) * 1996-05-30 2000-02-29 Kemira Chemicals Oy Menetelmä kemiallisen massan valkaisemiseksi
FI112075B (fi) * 1996-05-30 2003-10-31 Kemira Chemicals Oy N-bis- tai N-tris-[(1,2-dikarboksyyli-etoksi)-etyyli]amiinijohdannaiset, niiden valmistus ja käyttö

Also Published As

Publication number Publication date
ID25541A (id) 2000-10-12
EP1030943B1 (en) 2002-02-13
EP1030943A1 (en) 2000-08-30
US6331192B1 (en) 2001-12-18
DE69803874D1 (de) 2002-03-21
PT1030943E (pt) 2002-07-31
AU1236599A (en) 1999-06-07
ES2172240T3 (es) 2002-09-16
CA2310038C (en) 2008-01-15
DE69803874T2 (de) 2002-08-29
FI105214B (fi) 2000-06-30
WO1999025919A1 (fi) 1999-05-27
ATE213290T1 (de) 2002-02-15
CA2310038A1 (en) 1999-05-27
FI974221A (fi) 1999-05-14

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Legal Events

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MM Patent lapsed