CA1251903A - Traitement des pates chimiques non blanchies et chlorees, par recours a un agent alcalin, au peroxyde et a l'oxygene - Google Patents

Traitement des pates chimiques non blanchies et chlorees, par recours a un agent alcalin, au peroxyde et a l'oxygene

Info

Publication number
CA1251903A
CA1251903A CA000484110A CA484110A CA1251903A CA 1251903 A CA1251903 A CA 1251903A CA 000484110 A CA000484110 A CA 000484110A CA 484110 A CA484110 A CA 484110A CA 1251903 A CA1251903 A CA 1251903A
Authority
CA
Canada
Prior art keywords
pulp
weight
compound
peroxide
oxygen
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.)
Expired
Application number
CA000484110A
Other languages
English (en)
Inventor
Norman Liebergott
Barbara Van Lierop
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.)
FPInnovations
Original Assignee
Pulp and Paper Research Institute of Canada
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
Application filed by Pulp and Paper Research Institute of Canada filed Critical Pulp and Paper Research Institute of Canada
Priority to CA000484110A priority Critical patent/CA1251903A/fr
Priority to EP86304123A priority patent/EP0206560A3/fr
Priority to BR8602790A priority patent/BR8602790A/pt
Priority to NO862381A priority patent/NO862381L/no
Priority to FI862546A priority patent/FI862546A7/fi
Priority to JP61141210A priority patent/JPS6253497A/ja
Application granted granted Critical
Publication of CA1251903A publication Critical patent/CA1251903A/fr
Expired 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA000484110A 1985-06-17 1985-06-17 Traitement des pates chimiques non blanchies et chlorees, par recours a un agent alcalin, au peroxyde et a l'oxygene Expired CA1251903A (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA000484110A CA1251903A (fr) 1985-06-17 1985-06-17 Traitement des pates chimiques non blanchies et chlorees, par recours a un agent alcalin, au peroxyde et a l'oxygene
EP86304123A EP0206560A3 (fr) 1985-06-17 1986-05-30 Traitement alcalin au peroxyde et à l'oxygène pour des pâtes chimiques non-blanchies et chlorées
BR8602790A BR8602790A (pt) 1985-06-17 1986-06-16 Processo de polpamento e processo para abrilhantar polpa
NO862381A NO862381L (no) 1985-06-17 1986-06-16 Delingnifisering og/eller bleking av kjemisk tremasse.
FI862546A FI862546A7 (fi) 1985-06-17 1986-06-16 Menetelmä valkaisemattomien ja kloorattujen kemiallisten massojen käsittelemiseksi alkalilla, peroksidilla ja hapolla.
JP61141210A JPS6253497A (ja) 1985-06-17 1986-06-17 パルプ化方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000484110A CA1251903A (fr) 1985-06-17 1985-06-17 Traitement des pates chimiques non blanchies et chlorees, par recours a un agent alcalin, au peroxyde et a l'oxygene

Publications (1)

Publication Number Publication Date
CA1251903A true CA1251903A (fr) 1989-04-04

Family

ID=4130718

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000484110A Expired CA1251903A (fr) 1985-06-17 1985-06-17 Traitement des pates chimiques non blanchies et chlorees, par recours a un agent alcalin, au peroxyde et a l'oxygene

Country Status (6)

Country Link
EP (1) EP0206560A3 (fr)
JP (1) JPS6253497A (fr)
BR (1) BR8602790A (fr)
CA (1) CA1251903A (fr)
FI (1) FI862546A7 (fr)
NO (1) NO862381L (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6231718B1 (en) 1992-02-28 2001-05-15 International Paper Company Two phase ozone and oxygen pulp treatment
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2023916A1 (fr) * 1989-11-11 1991-05-12 Augustine I Dalton Delignification de fibres ligno-cellulosiques
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
WO2012038966A1 (fr) 2010-09-22 2012-03-29 Tyche Industries Ltd. Procédé de préparation d'un intermédiaire du donépézil
TW201610265A (zh) 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 非木材纖維之漂白及植物性雜質減量方法
TW201544652A (zh) 2014-05-20 2015-12-01 Georgia Pacific Consumer Prod 非木材纖維之漂白及植物性雜質減量方法
TW201610261A (zh) * 2014-05-20 2016-03-16 喬治亞太平洋消費者產品公司 非木材纖維之漂白及植物性雜質減量方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1100709A (en) * 1965-06-25 1968-01-24 Pulp Paper Res Inst Two-stage purification of fibrous cellulose material
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6231718B1 (en) 1992-02-28 2001-05-15 International Paper Company Two phase ozone and oxygen pulp treatment
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production

Also Published As

Publication number Publication date
NO862381D0 (no) 1986-06-16
FI862546L (fi) 1986-12-18
FI862546A7 (fi) 1986-12-18
BR8602790A (pt) 1987-02-10
NO862381L (no) 1986-12-18
EP0206560A2 (fr) 1986-12-30
EP0206560A3 (fr) 1988-07-20
FI862546A0 (fi) 1986-06-16
JPS6253497A (ja) 1987-03-09

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Legal Events

Date Code Title Description
MKEX Expiry