EP0882151A1 - Procede applicable au traitement de la pate chimique - Google Patents

Procede applicable au traitement de la pate chimique

Info

Publication number
EP0882151A1
EP0882151A1 EP97903408A EP97903408A EP0882151A1 EP 0882151 A1 EP0882151 A1 EP 0882151A1 EP 97903408 A EP97903408 A EP 97903408A EP 97903408 A EP97903408 A EP 97903408A EP 0882151 A1 EP0882151 A1 EP 0882151A1
Authority
EP
European Patent Office
Prior art keywords
bleaching
pulp
process according
acid
chelating
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP97903408A
Other languages
German (de)
English (en)
Other versions
EP0882151B1 (fr
Inventor
Ilkka Renvall
Reijo Aksela
Aarto Paren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kemira Oyj
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=EP0882151(A1) "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
Publication of EP0882151A1 publication Critical patent/EP0882151A1/fr
Application granted granted Critical
Publication of EP0882151B1 publication Critical patent/EP0882151B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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)
  • Treatment Of Fiber Materials (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

La présente invention concerne un procédé de blanchiment ou de délignification de la pâte chimique consistant, avant blanchiment ou délignification au moyen d'un produit chimique à base d'oxygène, à faire subir à la pâte un traitement préalable au moyen d'un agent chélateur de façon à supprimer les effets néfastes imputables à un quelconque métal lourd présent dans la pâte. L'agent chélateur utilisé est constitué de composés représentés par la formule générale (I) dans laquelle n = 1 à 3, m = 0 à 3, p = 1 à 3, R1, R2, R3 et R4 sont H, Na, K, Ca ou Mg, R5 et R6 sont H, CH2OH, CH2CH2OH ou CH2O(CH2CH2O)1-10CH2CH2OH.
EP97903408A 1996-02-19 1997-02-19 Procede applicable au traitement de la pate chimique Expired - Lifetime EP0882151B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI960756 1996-02-19
FI960756A FI115469B (fi) 1996-02-19 1996-02-19 Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi
PCT/FI1997/000106 WO1997030208A1 (fr) 1996-02-19 1997-02-19 Procede applicable au traitement de la pate chimique

Publications (2)

Publication Number Publication Date
EP0882151A1 true EP0882151A1 (fr) 1998-12-09
EP0882151B1 EP0882151B1 (fr) 2003-10-15

Family

ID=8545485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97903408A Expired - Lifetime EP0882151B1 (fr) 1996-02-19 1997-02-19 Procede applicable au traitement de la pate chimique

Country Status (6)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9745700B2 (en) 2008-06-20 2017-08-29 International Paper Company Composition and recording sheet with improved optical properties

Families Citing this family (20)

* 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
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.
DE69912128T2 (de) * 1998-04-17 2004-06-17 Alberta Research Council, Inc., Edmonton Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
FI991241A7 (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
GB0901207D0 (en) * 2009-01-26 2009-03-11 Innospec Ltd Chelating agents and methods relating thereto
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
US9512237B2 (en) 2009-05-28 2016-12-06 Gp Cellulose Gmbh Method for inhibiting the growth of microbes with a modified cellulose fiber
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
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
SE534885C2 (sv) * 2009-11-11 2012-01-31 Metso Paper Inc Förfarande för att producera en pappersmassa från lignocellulosamaterial innehållande minst 0,5% SiO2
RU2671653C2 (ru) * 2013-03-14 2018-11-06 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Способ изготовления высокофункционального маловязкого крафтволокна с использованием последовательности кислотного отбеливания и волокно, изготовленное с помощью этого процесса
WO2015138335A1 (fr) * 2014-03-12 2015-09-17 Gp Cellulose Gmbh Fibre kraft à faible viscosité à teneur accrue en carboxyle, procédés de production et utilisation
CN105143547B (zh) * 2013-03-15 2018-05-01 Gp 纤维素股份有限公司 具有增高羧基含量的低粘度牛皮纸纤维及其制造和使用方法
WO2018093697A1 (fr) 2016-11-16 2018-05-24 Gp Cellulose Gmbh Cellulose modifiée à base de fibres chimiques et procédés de fabrication et d'utilisation de ladite cellulose modifiée
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9730208A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9745700B2 (en) 2008-06-20 2017-08-29 International Paper Company Composition and recording sheet with improved optical properties

Also Published As

Publication number Publication date
FI960756L (fi) 1997-08-20
FI115469B (fi) 2005-05-13
WO1997030208A1 (fr) 1997-08-21
DE69725558T2 (de) 2004-08-05
DE69725558D1 (de) 2003-11-20
EP0882151B1 (fr) 2003-10-15
ATE252176T1 (de) 2003-11-15
FI960756A0 (fi) 1996-02-19
AU1797397A (en) 1997-09-02

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