FI954113A0 - Menetelmä ligniinin poistamiseksi kemiallisesta paperimassasta - Google Patents

Menetelmä ligniinin poistamiseksi kemiallisesta paperimassasta

Info

Publication number
FI954113A0
FI954113A0 FI954113A FI954113A FI954113A0 FI 954113 A0 FI954113 A0 FI 954113A0 FI 954113 A FI954113 A FI 954113A FI 954113 A FI954113 A FI 954113A FI 954113 A0 FI954113 A0 FI 954113A0
Authority
FI
Finland
Prior art keywords
chemical pulp
removing lignin
lignin
pulp
chemical
Prior art date
Application number
FI954113A
Other languages
English (en)
Swedish (sv)
Other versions
FI954113A (fi
Inventor
Johan Devenyns
Nicholas A Troughton
Francois Desprez
Original Assignee
Solvay Interox
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 Solvay Interox filed Critical Solvay Interox
Publication of FI954113A0 publication Critical patent/FI954113A0/fi
Publication of FI954113A publication Critical patent/FI954113A/fi

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
    • 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
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI954113A 1993-03-02 1995-09-01 Menetelmä ligniinin poistamiseksi kemiallisesta paperimassasta FI954113A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9300196A BE1006881A3 (fr) 1993-03-02 1993-03-02 Procede pour la delignification d'une pate a papier chimique.
PCT/EP1994/000546 WO1994020674A1 (fr) 1993-03-02 1994-02-24 Procede pour la delignification d'une pate a papier chimique

Publications (2)

Publication Number Publication Date
FI954113A0 true FI954113A0 (fi) 1995-09-01
FI954113A FI954113A (fi) 1995-10-04

Family

ID=3886877

Family Applications (1)

Application Number Title Priority Date Filing Date
FI954113A FI954113A (fi) 1993-03-02 1995-09-01 Menetelmä ligniinin poistamiseksi kemiallisesta paperimassasta

Country Status (10)

Country Link
EP (1) EP0687322A1 (fi)
JP (1) JPH08507332A (fi)
AU (1) AU6206094A (fi)
BE (1) BE1006881A3 (fi)
BR (1) BR9405943A (fi)
CA (1) CA2157291A1 (fi)
FI (1) FI954113A (fi)
NO (1) NO953440L (fi)
WO (1) WO1994020674A1 (fi)
ZA (1) ZA941468B (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2211223C (en) * 1995-02-17 2002-04-30 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide
FI117392B (fi) * 1999-03-02 2006-09-29 Kemira Oyj Monivaiheinen valkaisumenetelmä kemiallisen selluloosamassan valkaisemiseksi
US6899790B2 (en) 2000-03-06 2005-05-31 Georgia-Pacific Corporation Method of providing papermaking fibers with durable curl
US6627041B2 (en) * 2000-03-06 2003-09-30 Georgia-Pacific Corporation Method of bleaching and providing papermaking fibers with durable curl
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
BRPI0821031B1 (pt) 2007-12-20 2018-05-15 Mitsubishi Gas Chemical Company, Inc. Processo para produção de polpa alvejada

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69004492T3 (de) * 1989-06-06 2001-11-15 Eka Nobel Ab, Bohus Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
JPH0364589A (ja) * 1989-07-28 1991-03-19 Mitsubishi Gas Chem Co Inc 化学パルプの漂白方法
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
BE1004974A3 (fr) * 1991-06-06 1993-03-09 Interox Internat Sa Procede pour le blanchiment et la delignification de pates a papier chimiques et application de ce procede au blanchiment et a la delignification des pates kraft et des pates asam.
BE1006057A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour la delignification d'une pate a papier chimique.

Also Published As

Publication number Publication date
BE1006881A3 (fr) 1995-01-17
JPH08507332A (ja) 1996-08-06
NO953440D0 (no) 1995-09-01
FI954113A (fi) 1995-10-04
WO1994020674A1 (fr) 1994-09-15
EP0687322A1 (fr) 1995-12-20
CA2157291A1 (fr) 1994-09-15
ZA941468B (en) 1994-09-27
AU6206094A (en) 1994-09-26
BR9405943A (pt) 1996-02-06
NO953440L (no) 1995-11-01

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