CA2441841A1 - Blanchiment au peroxyde de la pate de bois - Google Patents

Blanchiment au peroxyde de la pate de bois Download PDF

Info

Publication number
CA2441841A1
CA2441841A1 CA 2441841 CA2441841A CA2441841A1 CA 2441841 A1 CA2441841 A1 CA 2441841A1 CA 2441841 CA2441841 CA 2441841 CA 2441841 A CA2441841 A CA 2441841A CA 2441841 A1 CA2441841 A1 CA 2441841A1
Authority
CA
Canada
Prior art keywords
slurry
peroxide bleaching
wood pulp
stabilizer
bleaching
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
CA 2441841
Other languages
English (en)
Other versions
CA2441841C (fr
Inventor
Yonghao Ni
Zhiqing Li
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.)
University of New Brunswick
Original Assignee
University of New Brunswick
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
Priority claimed from US10/251,888 external-priority patent/US7001484B2/en
Application filed by University of New Brunswick filed Critical University of New Brunswick
Publication of CA2441841A1 publication Critical patent/CA2441841A1/fr
Application granted granted Critical
Publication of CA2441841C publication Critical patent/CA2441841C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Paper (AREA)
CA 2441841 2002-09-23 2003-09-22 Blanchiment au peroxyde de la pate de bois Expired - Fee Related CA2441841C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/251,888 US7001484B2 (en) 2000-05-04 2002-09-23 Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
US10/251,888 2002-09-23

Publications (2)

Publication Number Publication Date
CA2441841A1 true CA2441841A1 (fr) 2004-03-23
CA2441841C CA2441841C (fr) 2007-08-07

Family

ID=32228701

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2441841 Expired - Fee Related CA2441841C (fr) 2002-09-23 2003-09-22 Blanchiment au peroxyde de la pate de bois

Country Status (1)

Country Link
CA (1) CA2441841C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080673A2 (fr) * 2004-02-25 2005-09-01 Kemira Oyj Procede de traitement d'un materiau fibreux et nouvelle composition
WO2005108673A1 (fr) 2004-05-12 2005-11-17 Kemira Oyj Composition et procede pour le traitement d'une matiere fibreuse

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005080673A2 (fr) * 2004-02-25 2005-09-01 Kemira Oyj Procede de traitement d'un materiau fibreux et nouvelle composition
WO2005080673A3 (fr) * 2004-02-25 2005-11-10 Kemira Oyj Procede de traitement d'un materiau fibreux et nouvelle composition
US7988821B2 (en) 2004-02-25 2011-08-02 Kemira Oyj Process for the treatment of fibre material and new composition
WO2005108673A1 (fr) 2004-05-12 2005-11-17 Kemira Oyj Composition et procede pour le traitement d'une matiere fibreuse
US8048264B2 (en) 2004-05-12 2011-11-01 Kemira Oyj Composition and process for the treatment of fibre material

Also Published As

Publication number Publication date
CA2441841C (fr) 2007-08-07

Similar Documents

Publication Publication Date Title
AU3404099A (en) Method of producing lignocellulosic pulp from non-woody species
CA1249402A (fr) Avivage multi-etage des pates a fort et tres fort rendement
SE0402037D0 (sv) Xylanase treatment of chemical pulp
EP0396287A3 (fr) Méthode et produit pour accroítre le blanchiment avec formation in situ de peracide
WO2003011750A3 (fr) Methodes de production d'acide chlorique et de dioxyde de chlore
AU4204393A (en) Process for bleaching of lignocellulose-containing material
EA200300383A1 (ru) Способ отбеливания целлюлозы для производства бумаги
CA2098661A1 (fr) Procede de blanchiment de pate a papier
CA2168288A1 (fr) Compositions de blanchiment renfermant des sulfamates et des borates ou des gluconates; methode de preparation
CN101306860B (zh) 一种降低废水有机氯含量的二氧化氯漂白方法
CA2441841A1 (fr) Blanchiment au peroxyde de la pate de bois
CA2520226A1 (fr) Traitement a ph eleve de la pate dans un processus de blanchiment pour l'obtention de pate ayant un bas degre de polymerisation (dp) et un faible indice de cuivre, aux fins d'utilisation dans la fabrication de fibres lyocell
CA2364242A1 (fr) Procede de production de polysulfure par oxydation electrolytique
WO2001083881A3 (fr) Blanchiment au peroxyde de pate a bois
CA2074715A1 (fr) Methode de blanchiment de matiere ligno-cellulosique
NO178899C (no) Fremgangsmåte for fremstilling av bleket masse i höyt utbytte
CA2194609A1 (fr) Procede pour la production de dioxyde chlore
EP0598538A2 (fr) Traitement de pâtes lignocellulosiques
CA2721612A1 (fr) Procedes de preparation des pates mecaniques ayant un degre de blancheur eleve
AU1355099A (en) Method of producing process steam from a black liquor
WO2001066713A8 (fr) Activation non enzymatique de conversion de prothrombine pure en thrombine
NO953397D0 (no) Fremgangsmåte og anlegg for fremstilling av celluloseavlut
CN101597872A (zh) 应用于纸浆高锰酸钾预处理过氧化氢漂白的后处理工艺
CA2121969A1 (fr) Pretraitement de la pate au bisulfite avant blanchiment par des produits chimiques renfermant de l'oxygene
JPS6335758B2 (fr)

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20130924