CA2149332A1 - Methode de blanchiment de la pate - Google Patents

Methode de blanchiment de la pate

Info

Publication number
CA2149332A1
CA2149332A1 CA 2149332 CA2149332A CA2149332A1 CA 2149332 A1 CA2149332 A1 CA 2149332A1 CA 2149332 CA2149332 CA 2149332 CA 2149332 A CA2149332 A CA 2149332A CA 2149332 A1 CA2149332 A1 CA 2149332A1
Authority
CA
Canada
Prior art keywords
stage
accordance
bleaching
pulp
peroxide
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
CA 2149332
Other languages
English (en)
Inventor
Hakan Finne
Kaj Henricson
Uno Lundgren
Ingvar Ollandt
Kenneth Winberg
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.)
Andritz Oy
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2149332A1 publication Critical patent/CA2149332A1/fr
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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA 2149332 1992-11-13 1993-09-14 Methode de blanchiment de la pate Abandoned CA2149332A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI925159 1992-11-13
FI925159A FI925159A0 (fi) 1992-11-13 1992-11-13 Foerfarande foer blekning av massa

Publications (1)

Publication Number Publication Date
CA2149332A1 true CA2149332A1 (fr) 1994-05-26

Family

ID=8536209

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2149332 Abandoned CA2149332A1 (fr) 1992-11-13 1993-09-14 Methode de blanchiment de la pate

Country Status (6)

Country Link
EP (1) EP0669999A1 (fr)
JP (1) JPH08503267A (fr)
BR (1) BR9307443A (fr)
CA (1) CA2149332A1 (fr)
FI (1) FI925159A0 (fr)
WO (1) WO1994011568A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89516B (fi) 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
SE500616C2 (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
AU7243594A (en) * 1993-09-15 1995-04-03 Kamyr Inc. Eop stage for chlorine free bleaching
JP2002266272A (ja) * 2001-03-12 2002-09-18 Nippon Paper Industries Co Ltd セルロース質繊維材料パルプの漂白方法
RU2634586C1 (ru) * 2016-08-01 2017-10-31 федеральное государственное бюджетное образовательное учреждение высшего образования "Пермский национальный исследовательский политехнический университет" Способ отбелки лиственной сульфатной целлюлозы

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
CA2023916A1 (fr) * 1989-11-11 1991-05-12 Augustine I Dalton Delignification de fibres ligno-cellulosiques
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon

Also Published As

Publication number Publication date
BR9307443A (pt) 1999-06-01
WO1994011568A1 (fr) 1994-05-26
FI925159A0 (fi) 1992-11-13
EP0669999A1 (fr) 1995-09-06
JPH08503267A (ja) 1996-04-09

Similar Documents

Publication Publication Date Title
CA2017807C (fr) Procede de blanchiment de pates lignocellulosique
CA2149648C (fr) Procede de delignification de pate contenant de la lignocellulose
CA1190360A (fr) Delignification catalytique par un peroxyde en milieu alcalin
CA2053035C (fr) Pates de bois sans chlore, et procede de fabrication
WO1979000637A1 (fr) Blanchiment de materiau lignocellulosique avec des agents de blanchiment contenant du peroxyde
CA2040871C (fr) Procede de blanchiment de materiau contenant de la lignocellulose
CA2219759A1 (fr) Blanchiment de pate a papier a la temperature ambiante au moyen de sels de peroxyacide
KR930002072B1 (ko) 과산화수소 강화된 산소 탈리그닌화 방법
CA2149332A1 (fr) Methode de blanchiment de la pate
AU665461B2 (en) Method of treating process water
CA2149649C (fr) Procede de blanchiment de pate contenant de la lignocellulose
USH1690H (en) Process for bleaching kraft pulp
CA2163116C (fr) Methode de blanchiment de la pate sans utilisation de composes chlores
WO1991012366A1 (fr) Blanchiment de pate a papier
US20030168190A1 (en) Method for controlling the delignfication and bleaching of a pulp suspension
EP0951599B1 (fr) Traitement de pate avec un chelateur sans utiliser de tour de blanchiment
JP2002069879A (ja) セルロース質繊維材料のパルプの漂白方法
SE502135C2 (sv) Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg
RU2097462C1 (ru) Способ делигнификации и отбеливания лигноцеллюлозосодержащей пульпы
JPH08260370A (ja) リグノセルロース物質の漂白方法
AU642971B2 (en) Bleaching of paper pulp
WO1998014657A1 (fr) Oxydation des ions metal perturbateurs dans des procedes de blanchiment

Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead