FI960756A - Menetelmä selluloosamateriaalin käsittelemiseksi - Google Patents

Menetelmä selluloosamateriaalin käsittelemiseksi Download PDF

Info

Publication number
FI960756A
FI960756A FI960756A FI960756A FI960756A FI 960756 A FI960756 A FI 960756A FI 960756 A FI960756 A FI 960756A FI 960756 A FI960756 A FI 960756A FI 960756 A FI960756 A FI 960756A
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
FI115469B (fi
FI960756A0 (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(A) "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 DE69725558T priority patent/DE69725558T2/de
Priority to AT97903408T priority patent/ATE252176T1/de
Priority to EP97903408A priority patent/EP0882151B1/en
Priority to AU17973/97A priority patent/AU1797397A/en
Priority to PCT/FI1997/000106 priority patent/WO1997030208A1/en
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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (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
DE69725558T DE69725558T2 (de) 1996-02-19 1997-02-19 Verfahren zur behandlung von chemischem zellstoff
AT97903408T ATE252176T1 (de) 1996-02-19 1997-02-19 Verfahren zur behandlung von chemischem zellstoff
EP97903408A EP0882151B1 (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
PCT/FI1997/000106 WO1997030208A1 (en) 1996-02-19 1997-02-19 Process for the treatment of chemical pulp

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 FI960756A0 (fi) 1996-02-19
FI960756A true 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
CA2310278A1 (en) * 1997-11-25 1999-06-03 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
BE1011785A3 (fr) * 1998-03-10 2000-01-11 Solvay Procede de blanchiment et/ou de delignification de pates a papier chimiques.
BE1011784A3 (fr) * 1998-03-10 2000-01-11 Solvay Procede de blanchiment de pate a papier.
EP1095184B1 (en) * 1998-04-17 2003-10-15 Alberta Research Council, Inc. Method of producing lignocellulosic pulp from non-woody species
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
CN102076911B (zh) 2008-06-20 2013-03-13 国际纸业公司 具有改良光学特性的组合物和记录片材
GB0901207D0 (en) 2009-01-26 2009-03-11 Innospec Ltd Chelating agents and methods relating thereto
BRPI1012052A2 (pt) 2009-05-28 2017-12-26 Gp Cellulose Gmbh fibras kraft hidrolisadas e quimicamente modificadas e métodos de produção e de branqueamento de fibras kraft
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
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
BR112015020000A2 (pt) 2013-03-15 2017-07-18 Gp Cellulose Gmbh fibra kraft quimicamente modificada e métodos de fabricação da mesma
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
DE69725558T2 (de) 2004-08-05
AU1797397A (en) 1997-09-02
ATE252176T1 (de) 2003-11-15
DE69725558D1 (de) 2003-11-20
FI115469B (fi) 2005-05-13
WO1997030208A1 (en) 1997-08-21
FI960756A0 (fi) 1996-02-19
EP0882151B1 (en) 2003-10-15
EP0882151A1 (en) 1998-12-09

Similar Documents

Publication Publication Date Title
FI960756A0 (fi) Menetelmä selluloosamateriaalin käsittelemiseksi
FR2552125B1 (fr) Procede pour le taitement des matieres cellulosiques par des agents oxydants
AU2739995A (en) Delignification of chemical pulp with peroxide in the presence of a transition metal
FI93867B (fi) Menetelmä paperimassojen käsittelemiseksi otsonilla ja reaktori tämän menetelmän soveltamiseksi
SE9302409D0 (sv) Massaframstaellning
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
FI941764A (fi) Menetelmä lignoselluloosapitoisen massan valkaisemiseksi
MY132667A (en) Process for the bleaching of pulp
DE69409967D1 (de) Aminoalkan-diphosphonsäuren zum bleichen von zellstoff
MX9602927A (es) Procedimiento para blanquear pasta pulpa kraft.
SE9501897L (sv) Förfarande för delignifiering/blekning av lignininnehållande cellulosamassa
ATE84582T1 (de) Regelung der peroxidbleiche verschiedener papierfaserstoffe.
AU565124B2 (en) Hypochlorite treatment of chemical paper pulps
BR9406763A (pt) Processo de tratamento de polpa de papel quimica
SE9604094L (sv) Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar
SE9303066L (sv) Blekning av kemisk massa varvid massan behandlas med komplexbildare före och efter ett ozonsteg
TR199801842A3 (tr) Selüloz liflerin islem görme yöntemi.
SE8505899D0 (sv) Regenererbara reducerande blekmedel
EP0377981A3 (en) Process for improved alkaline oxidative delignification of cellulose pulp
SE9301293L (sv) Förfarande för blekning av lignocellulosahaltig massa

Legal Events

Date Code Title Description
FG Patent granted

Ref document number: 115469

Country of ref document: FI

MM Patent lapsed