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AU7993994A - Method of bleaching chemical paper pulp - Google Patents

Method of bleaching chemical paper pulp

Info

Publication number
AU7993994A
AU7993994A AU79939/94A AU7993994A AU7993994A AU 7993994 A AU7993994 A AU 7993994A AU 79939/94 A AU79939/94 A AU 79939/94A AU 7993994 A AU7993994 A AU 7993994A AU 7993994 A AU7993994 A AU 7993994A
Authority
AU
Australia
Prior art keywords
paper pulp
bleaching chemical
chemical paper
pulp
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.)
Abandoned
Application number
AU79939/94A
Other languages
English (en)
Inventor
Francois Desprez
Johan Devenyns
Nicholas A Troughton
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.)
Solvay Chimie SA
Original Assignee
Solvay Interox SA
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=3887547&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU7993994(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Solvay Interox SA filed Critical Solvay Interox SA
Publication of AU7993994A publication Critical patent/AU7993994A/en
Abandoned 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AU79939/94A 1993-11-10 1994-10-28 Method of bleaching chemical paper pulp Abandoned AU7993994A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9301251 1993-11-10
BE9301251A BE1007757A3 (fr) 1993-11-10 1993-11-10 Procede pour le blanchiment d'une pate a papier chimique.
PCT/EP1994/003590 WO1995013420A1 (fr) 1993-11-10 1994-10-28 Procede pour le blanchiment d'une pate a papier chimique

Publications (1)

Publication Number Publication Date
AU7993994A true AU7993994A (en) 1995-05-29

Family

ID=3887547

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79939/94A Abandoned AU7993994A (en) 1993-11-10 1994-10-28 Method of bleaching chemical paper pulp

Country Status (14)

Country Link
EP (1) EP0728238B2 (pt)
JP (1) JPH10500178A (pt)
AT (1) ATE175738T1 (pt)
AU (1) AU7993994A (pt)
BE (1) BE1007757A3 (pt)
BR (1) BR9408027A (pt)
CA (1) CA2176246A1 (pt)
DE (1) DE69416000D1 (pt)
ES (1) ES2129142T5 (pt)
FI (1) FI961975A (pt)
MA (1) MA23369A1 (pt)
NO (1) NO961889D0 (pt)
WO (1) WO1995013420A1 (pt)
ZA (1) ZA948563B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4967451B2 (ja) 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 漂白パルプの製造方法
CN101903591A (zh) 2007-12-20 2010-12-01 三菱瓦斯化学株式会社 漂白纸浆的制造方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0402335T4 (da) * 1989-06-06 2001-06-25 Eka Chemicals Ab Fremgangsmåde til blegning af lignocelluloseholdigpulp
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
SE469842C (sv) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid
SE469387B (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
ES2091121T3 (es) * 1992-11-27 1996-10-16 Eka Chemicals Ab Procedimiento para blanquear pasta que contiene lignocelulosa.
BE1007700A3 (fr) * 1993-11-04 1995-10-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.

Also Published As

Publication number Publication date
JPH10500178A (ja) 1998-01-06
FI961975A0 (fi) 1996-05-09
FI961975A (fi) 1996-07-09
EP0728238A1 (fr) 1996-08-28
EP0728238B2 (fr) 2004-08-11
MA23369A1 (fr) 1995-07-01
DE69416000D1 (de) 1999-02-25
ES2129142T3 (es) 1999-06-01
NO961889L (no) 1996-05-09
ZA948563B (en) 1995-06-30
EP0728238B1 (fr) 1999-01-13
WO1995013420A1 (fr) 1995-05-18
BR9408027A (pt) 1996-12-17
NO961889D0 (no) 1996-05-09
ATE175738T1 (de) 1999-01-15
BE1007757A3 (fr) 1995-10-17
ES2129142T5 (es) 2005-04-01
CA2176246A1 (fr) 1995-05-18

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