FI921961A0 - Foerfarande foer blekning av xylan- och lignocellulosahaltiga material. - Google Patents

Foerfarande foer blekning av xylan- och lignocellulosahaltiga material.

Info

Publication number
FI921961A0
FI921961A0 FI921961A FI921961A FI921961A0 FI 921961 A0 FI921961 A0 FI 921961A0 FI 921961 A FI921961 A FI 921961A FI 921961 A FI921961 A FI 921961A FI 921961 A0 FI921961 A0 FI 921961A0
Authority
FI
Finland
Prior art keywords
lignocellulosahaltiga
xylan
och
foerfarande foer
blekning
Prior art date
Application number
FI921961A
Other languages
English (en)
Other versions
FI921961A (fi
Inventor
Michael Sinner
Karl Schwarzl
Johann Kapplmuller
Original Assignee
Voest Alpine Ind Anlagen
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 Voest Alpine Ind Anlagen filed Critical Voest Alpine Ind Anlagen
Publication of FI921961A0 publication Critical patent/FI921961A0/fi
Publication of FI921961A publication Critical patent/FI921961A/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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
FI921961A 1991-05-02 1992-04-30 Foerfarande foer blekning av xylan- och lignocellulosahaltiga material FI921961A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT91791A AT400153B (de) 1991-05-02 1991-05-02 Verfahren zum bleichen von xylan- und lignocellulosehältigen materialien

Publications (2)

Publication Number Publication Date
FI921961A0 true FI921961A0 (fi) 1992-04-30
FI921961A FI921961A (fi) 1992-11-03

Family

ID=3502802

Family Applications (1)

Application Number Title Priority Date Filing Date
FI921961A FI921961A (fi) 1991-05-02 1992-04-30 Foerfarande foer blekning av xylan- och lignocellulosahaltiga material

Country Status (4)

Country Link
EP (1) EP0512978A1 (fi)
AT (1) AT400153B (fi)
CA (1) CA2067880A1 (fi)
FI (1) FI921961A (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI93232C (fi) * 1993-03-03 1995-03-10 Ahlstroem Oy Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
US6010594A (en) * 1993-03-03 2000-01-04 Ahlstrom Machinery Corporation Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage
BE1007272A3 (fr) * 1993-07-15 1995-05-09 Solvay Procede pour le blanchiment d'une pate a papier.
FI935187A (fi) * 1993-11-22 1995-05-23 Valtion Teknillinen Menetelmä valkaistun selluloosamassan valmistamiseksi
CN109320744B (zh) * 2018-09-26 2021-08-13 山东恒联新材料股份有限公司 一种再生纤维素膜漂白工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
DE3636208A1 (de) * 1986-10-24 1988-05-05 Call Hans Peter Verfahren zur delignifizierung und bleichung von lignicellulosehaltigem bzw. ligninhaltigem material bzw. lignin durch enzymatische behandlung
CA2003503A1 (en) * 1988-11-23 1990-05-23 Roberta Lee Farrell Use of aureobasidium pullulans in pulp bleaching
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
NZ235679A (en) * 1989-10-18 1993-01-27 Int Paper Co Bleaching lignocellulosic pulp using (a) treatment with xylanase and (b) one or more chemical bleaching stages

Also Published As

Publication number Publication date
FI921961A (fi) 1992-11-03
AT400153B (de) 1995-10-25
EP0512978A1 (de) 1992-11-11
ATA91791A (de) 1995-02-15
CA2067880A1 (en) 1992-11-03

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Legal Events

Date Code Title Description
FD Application lapsed