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SE9302010L - Ozonblekning - Google Patents

Ozonblekning

Info

Publication number
SE9302010L
SE9302010L SE9302010A SE9302010A SE9302010L SE 9302010 L SE9302010 L SE 9302010L SE 9302010 A SE9302010 A SE 9302010A SE 9302010 A SE9302010 A SE 9302010A SE 9302010 L SE9302010 L SE 9302010L
Authority
SE
Sweden
Prior art keywords
ozone
gas
stirring
pulp
bleaching
Prior art date
Application number
SE9302010A
Other languages
Unknown language ( )
English (en)
Other versions
SE9302010D0 (sv
SE502665C2 (sv
Inventor
Hasse Boerjesson
Christen Groenvold-Hansen
Axel Laemaas
Torbjoern Kvarnstroem
Ronny Hoeglund
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9302010A priority Critical patent/SE502665C2/sv
Publication of SE9302010D0 publication Critical patent/SE9302010D0/sv
Priority to AU70118/94A priority patent/AU7011894A/en
Priority to PCT/SE1994/000543 priority patent/WO1994029514A1/en
Publication of SE9302010L publication Critical patent/SE9302010L/sv
Publication of SE502665C2 publication Critical patent/SE502665C2/sv

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/50—Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)
SE9302010A 1993-06-11 1993-06-11 Sätt och reaktor för ozonblekning SE502665C2 (sv)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9302010A SE502665C2 (sv) 1993-06-11 1993-06-11 Sätt och reaktor för ozonblekning
AU70118/94A AU7011894A (en) 1993-06-11 1994-06-06 Ozone bleaching
PCT/SE1994/000543 WO1994029514A1 (en) 1993-06-11 1994-06-06 Ozone bleaching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302010A SE502665C2 (sv) 1993-06-11 1993-06-11 Sätt och reaktor för ozonblekning

Publications (3)

Publication Number Publication Date
SE9302010D0 SE9302010D0 (sv) 1993-06-11
SE9302010L true SE9302010L (sv) 1994-12-12
SE502665C2 SE502665C2 (sv) 1995-12-04

Family

ID=20390244

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9302010A SE502665C2 (sv) 1993-06-11 1993-06-11 Sätt och reaktor för ozonblekning

Country Status (3)

Country Link
AU (1) AU7011894A (sv)
SE (1) SE502665C2 (sv)
WO (1) WO1994029514A1 (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE504803C2 (sv) * 1995-08-24 1997-04-28 Sunds Defibrator Ind Ab Behandling av massa med komplexbildare i minst två blandningssteg utan mellanliggande tvätt
WO1997046310A1 (en) * 1996-06-03 1997-12-11 Beloit Technologies, Inc. High turbulence mixer
SE508239C2 (sv) * 1997-01-03 1998-09-21 Sunds Defibrator Ind Ab Behandling av massa med komplexbildare i minst ett blandningssteg, utan användning av blektorn
EP1586366A1 (en) * 2004-04-13 2005-10-19 Sulzer Pumpen Ag A method, an apparatus and a rotor for homogenizing a medium
RU2456063C1 (ru) * 2010-12-02 2012-07-20 Геннадий Анатольевич Шаталов Прямоточный смеситель жидкостей и газов

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1801442A1 (de) * 1967-10-20 1969-05-29 Stadler Hurter Internat Ltd Ruehrbehaeltermischer
US3966542A (en) * 1974-09-20 1976-06-29 General Signal Corporation Multi-stage bleaching of pulp using successively lower power levels
US4080249A (en) * 1976-06-02 1978-03-21 International Paper Company Delignification and bleaching of a lignocellulosic pulp slurry with ozone

Also Published As

Publication number Publication date
WO1994029514A1 (en) 1994-12-22
AU7011894A (en) 1995-01-03
SE9302010D0 (sv) 1993-06-11
SE502665C2 (sv) 1995-12-04

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Legal Events

Date Code Title Description
NUG Patent has lapsed