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SE9803474L - Syrgasblekning av massa - Google Patents

Syrgasblekning av massa

Info

Publication number
SE9803474L
SE9803474L SE9803474A SE9803474A SE9803474L SE 9803474 L SE9803474 L SE 9803474L SE 9803474 A SE9803474 A SE 9803474A SE 9803474 A SE9803474 A SE 9803474A SE 9803474 L SE9803474 L SE 9803474L
Authority
SE
Sweden
Prior art keywords
reactor
pulp
pressure
regulating valve
level
Prior art date
Application number
SE9803474A
Other languages
Unknown language ( )
English (en)
Other versions
SE9803474D0 (sv
Inventor
Per Aastroem
Rune Larsson
Per-Aake Soedersten
Monica Bokstroem
Original Assignee
Valmet Fibertech Ab
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 Valmet Fibertech Ab filed Critical Valmet Fibertech Ab
Priority to SE9803474A priority Critical patent/SE9803474L/sv
Publication of SE9803474D0 publication Critical patent/SE9803474D0/sv
Priority to PCT/SE1999/001761 priority patent/WO2000020678A1/en
Priority to BR9914337-2A priority patent/BR9914337A/pt
Priority to EP99956419A priority patent/EP1155183A1/en
Priority to JP2000574767A priority patent/JP2002526684A/ja
Publication of SE9803474L publication Critical patent/SE9803474L/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1052—Controlling the process
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
SE9803474A 1998-10-08 1998-10-08 Syrgasblekning av massa SE9803474L (sv)

Priority Applications (5)

Application Number Priority Date Filing Date Title
SE9803474A SE9803474L (sv) 1998-10-08 1998-10-08 Syrgasblekning av massa
PCT/SE1999/001761 WO2000020678A1 (en) 1998-10-08 1999-10-04 Oxygen gas bleaching of pulp
BR9914337-2A BR9914337A (pt) 1998-10-08 1999-10-04 Processo de deslignificação de material de polpa contendo lignocelulose por gás oxigênio em dois estágios
EP99956419A EP1155183A1 (en) 1998-10-08 1999-10-04 Oxygen gas bleaching of pulp
JP2000574767A JP2002526684A (ja) 1998-10-08 1999-10-04 パルプの酸素ガス漂白

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9803474A SE9803474L (sv) 1998-10-08 1998-10-08 Syrgasblekning av massa

Publications (2)

Publication Number Publication Date
SE9803474D0 SE9803474D0 (sv) 1998-10-08
SE9803474L true SE9803474L (sv) 2000-04-09

Family

ID=20412917

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9803474A SE9803474L (sv) 1998-10-08 1998-10-08 Syrgasblekning av massa

Country Status (5)

Country Link
EP (1) EP1155183A1 (sv)
JP (1) JP2002526684A (sv)
BR (1) BR9914337A (sv)
SE (1) SE9803474L (sv)
WO (1) WO2000020678A1 (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE503027T1 (de) * 2007-07-25 2011-04-15 Haarslev As Verfahren und system zur vorbehandlung von lignocellulosischem material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411633A (en) * 1991-04-30 1995-05-02 Kamyr, Inc. Medium consistency pulp ozone bleaching
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
SE505141C2 (sv) * 1995-10-23 1997-06-30 Sunds Defibrator Ind Ab Syrgasdelignifiering av massa i två steg med hög satsning av alkali och syrgas och temperatur under 90 C i första steget
AU2312797A (en) * 1996-03-26 1997-10-17 Sunds Defibrator Industries Ab Oxygen delignification of pulp in two stages

Also Published As

Publication number Publication date
JP2002526684A (ja) 2002-08-20
BR9914337A (pt) 2001-06-26
EP1155183A1 (en) 2001-11-21
WO2000020678A1 (en) 2000-04-13
SE9803474D0 (sv) 1998-10-08

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Legal Events

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