FI960756A0 - Menetelmä selluloosamateriaalin käsittelemiseksi - Google Patents

Menetelmä selluloosamateriaalin käsittelemiseksi

Info

Publication number
FI960756A0
FI960756A0 FI960756A FI960756A FI960756A0 FI 960756 A0 FI960756 A0 FI 960756A0 FI 960756 A FI960756 A FI 960756A FI 960756 A FI960756 A FI 960756A FI 960756 A0 FI960756 A0 FI 960756A0
Authority
FI
Finland
Prior art keywords
pulp
treating
cellulosic material
delignification
chelating agent
Prior art date
Application number
FI960756A
Other languages
English (en)
Swedish (sv)
Other versions
FI960756A (fi
FI115469B (fi
Inventor
Ilkka Renvall
Aarto Paren
Reijo Aksela
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8545485&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI960756(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Priority to FI960756A priority Critical patent/FI115469B/fi
Publication of FI960756A0 publication Critical patent/FI960756A0/fi
Priority to EP97903408A priority patent/EP0882151B1/en
Priority to PCT/FI1997/000106 priority patent/WO1997030208A1/en
Priority to AU17973/97A priority patent/AU1797397A/en
Priority to AT97903408T priority patent/ATE252176T1/de
Priority to DE69725558T priority patent/DE69725558T2/de
Publication of FI960756A publication Critical patent/FI960756A/fi
Application granted granted Critical
Publication of FI115469B publication Critical patent/FI115469B/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
FI960756A 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi FI115469B (fi)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI960756A FI115469B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi
EP97903408A EP0882151B1 (en) 1996-02-19 1997-02-19 Process for the treatment of chemical pulp
PCT/FI1997/000106 WO1997030208A1 (en) 1996-02-19 1997-02-19 Process for the treatment of chemical pulp
AU17973/97A AU1797397A (en) 1996-02-19 1997-02-19 Process for the treatment of chemical pulp
AT97903408T ATE252176T1 (de) 1996-02-19 1997-02-19 Verfahren zur behandlung von chemischem zellstoff
DE69725558T DE69725558T2 (de) 1996-02-19 1997-02-19 Verfahren zur behandlung von chemischem zellstoff

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI960756 1996-02-19
FI960756A FI115469B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi

Publications (3)

Publication Number Publication Date
FI960756A0 true FI960756A0 (fi) 1996-02-19
FI960756A FI960756A (fi) 1997-08-20
FI115469B FI115469B (fi) 2005-05-13

Family

ID=8545485

Family Applications (1)

Application Number Title Priority Date Filing Date
FI960756A FI115469B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi

Country Status (6)

Country Link
EP (1) EP0882151B1 (fi)
AT (1) ATE252176T1 (fi)
AU (1) AU1797397A (fi)
DE (1) DE69725558T2 (fi)
FI (1) FI115469B (fi)
WO (1) WO1997030208A1 (fi)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19630278A1 (de) * 1996-07-26 1998-01-29 Basf Ag Komplexbildner für die Zellstoff- und Holzstoffbleiche, die Papierherstellung sowie das Deinking von Altpapier
AU5657098A (en) * 1997-11-25 1999-06-15 Amylum Belgium N.V. Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions
KR100260833B1 (ko) * 1997-12-27 2000-07-01 차동천 고수율기계펄프의 제조방법
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
BE1011784A3 (fr) * 1998-03-10 2000-01-11 Solvay Procede de blanchiment de pate a papier.
BE1011785A3 (fr) * 1998-03-10 2000-01-11 Solvay Procede de blanchiment et/ou de delignification de pates a papier chimiques.
DE69912128T2 (de) * 1998-04-17 2004-06-17 Alberta Research Council, Inc., Edmonton Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
FI991241A (fi) 1999-06-01 2000-12-02 Aga Ab Ligniinin valkaisu ja menetelmä paperin valmistamiseksi
GB2391011A (en) * 2002-07-19 2004-01-28 Crosmill Ltd Bleaching cellulose suspensions
CA2728278C (en) 2008-06-20 2016-06-28 Zheng Tan Composition and recording sheet with improved optical properties
GB0901207D0 (en) * 2009-01-26 2009-03-11 Innospec Ltd Chelating agents and methods relating thereto
US9511167B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
WO2010138941A2 (en) 2009-05-28 2010-12-02 Gp Cellulose Gmbh Modified cellulose from chemical kraft fiber and methods of making and using the same
US9512563B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Surface treated modified cellulose from chemical kraft fiber and methods of making and using same
SE534885C2 (sv) * 2009-11-11 2012-01-31 Metso Paper Inc Förfarande för att producera en pappersmassa från lignocellulosamaterial innehållande minst 0,5% SiO2
BR112015019882A2 (pt) 2013-03-14 2017-07-18 Gp Cellulose Gmbh fibra kraft clareada oxidada e métodos para fazer polpa kraft e fibra kraft de madeira macia e para clarear polpa kraft de celulose em sequência de branqueamento de multi-estágios
US9951470B2 (en) * 2013-03-15 2018-04-24 Gp Cellulose Gmbh Low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
WO2015138335A1 (en) * 2014-03-12 2015-09-17 Gp Cellulose Gmbh A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same
EP3541849B1 (en) 2016-11-16 2023-11-15 GP Cellulose GmbH Modified cellulose from chemical fiber and methods of making and using the same
CZ309643B6 (cs) * 2021-07-21 2023-06-07 Univerzita Pardubice Hořečnaté sole derivátů asparagové kyseliny a jejich použití jako stabilizátorů peroxidu vodíku

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5362412A (en) * 1991-04-17 1994-11-08 Hampshire Chemical Corp. Biodegradable bleach stabilizers for detergents
GB9216408D0 (en) * 1992-08-01 1992-09-16 Procter & Gamble Stabilized bleaching compositions
DE4340043A1 (de) * 1993-11-24 1995-06-01 Henkel Kgaa Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche
DE4445931A1 (de) * 1994-12-22 1996-06-27 Basf Ag Verwendung von Hydroxyalkylaminocarbonsäuren als Komplexbildner

Also Published As

Publication number Publication date
AU1797397A (en) 1997-09-02
DE69725558T2 (de) 2004-08-05
FI960756A (fi) 1997-08-20
DE69725558D1 (de) 2003-11-20
ATE252176T1 (de) 2003-11-15
EP0882151A1 (en) 1998-12-09
WO1997030208A1 (en) 1997-08-21
FI115469B (fi) 2005-05-13
EP0882151B1 (en) 2003-10-15

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