SE0403222L - Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg - Google Patents

Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg

Info

Publication number
SE0403222L
SE0403222L SE0403222A SE0403222A SE0403222L SE 0403222 L SE0403222 L SE 0403222L SE 0403222 A SE0403222 A SE 0403222A SE 0403222 A SE0403222 A SE 0403222A SE 0403222 L SE0403222 L SE 0403222L
Authority
SE
Sweden
Prior art keywords
pulp
high pressure
reactor
dwell time
reactors
Prior art date
Application number
SE0403222A
Other languages
English (en)
Other versions
SE526843C2 (sv
SE0403222D0 (sv
Inventor
Vidar Snekkenes
Jonas Saetheraasen
Lennart Gustavsson
Martin Ragnar
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 SE0403222A priority Critical patent/SE0403222L/sv
Publication of SE0403222D0 publication Critical patent/SE0403222D0/sv
Priority to PCT/SE2005/001366 priority patent/WO2006071165A1/en
Priority to US10/595,860 priority patent/US20090107642A1/en
Priority to BRPI0506684-0A priority patent/BRPI0506684A/pt
Priority to EP05784562A priority patent/EP1831455A1/en
Priority to CA002553539A priority patent/CA2553539A1/en
Priority to JP2007549312A priority patent/JP2008527184A/ja
Publication of SE526843C2 publication Critical patent/SE526843C2/sv
Publication of SE0403222L publication Critical patent/SE0403222L/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
    • D21C9/147—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)
SE0403222A 2004-12-30 2004-12-30 Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg SE0403222L (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE0403222A SE0403222L (sv) 2004-12-30 2004-12-30 Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg
PCT/SE2005/001366 WO2006071165A1 (en) 2004-12-30 2005-09-20 A method for oxygen delignification of cellulose pulp at high pressure in several steps
US10/595,860 US20090107642A1 (en) 2004-12-30 2005-09-20 Method for oxygen delignification of cellulose pulp at high pressure in several steps
BRPI0506684-0A BRPI0506684A (pt) 2004-12-30 2005-09-20 método para deslignificação pór oxigênio de polpa de celulose em diversas etapas sob alta pressão
EP05784562A EP1831455A1 (en) 2004-12-30 2005-09-20 A method for oxygen delignification of cellulose pulp at high pressure in several steps
CA002553539A CA2553539A1 (en) 2004-12-30 2005-09-20 A method for oxygen delignification of cellulose pulp at high pressure in several steps
JP2007549312A JP2008527184A (ja) 2004-12-30 2005-09-20 高圧における数段階のセルロースパルプ酸素脱リグニン方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0403222A SE0403222L (sv) 2004-12-30 2004-12-30 Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg

Publications (3)

Publication Number Publication Date
SE0403222D0 SE0403222D0 (sv) 2004-12-30
SE526843C2 SE526843C2 (sv) 2005-11-08
SE0403222L true SE0403222L (sv) 2005-11-08

Family

ID=34102164

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0403222A SE0403222L (sv) 2004-12-30 2004-12-30 Metod för syrgasdelignifiering av cellulosamassa vid högt tryck i flera steg

Country Status (7)

Country Link
US (1) US20090107642A1 (sv)
EP (1) EP1831455A1 (sv)
JP (1) JP2008527184A (sv)
BR (1) BRPI0506684A (sv)
CA (1) CA2553539A1 (sv)
SE (1) SE0403222L (sv)
WO (1) WO2006071165A1 (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI123023B (sv) 2009-09-01 2012-10-15 Andritz Oy Förfarande och anordning för avskiljning av såpa
FI126847B (sv) * 2012-12-13 2017-06-15 Upm Kymmene Corp Förfarande för katalytisk oxidation av cellulosa och förfarande för tillverkning av en cellulosaprodukt
SE540043C2 (sv) * 2015-11-27 2018-03-06 Valmet Oy Method and system for oxygen delignification of cellulose pulp
DE102020002445A1 (de) 2020-04-23 2021-10-28 Messer Austria Gmbh Verfahren und Vorrichtung zur Herstellung von gebleichtem Zellstoff

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217575A (en) * 1988-10-18 1993-06-08 Kamyr Ab Process for oxygen bleaching using two vertical reactors
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus
SE9401628L (sv) * 1994-05-10 1995-11-11 Stora Kopparbergs Bergslags Ab Förfarande vid syrgasdelignifiering
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
EP0865531B1 (en) * 1995-12-07 2002-03-06 Beloit Technologies, Inc. Oxygen delignification of medium consistency pulp slurry

Also Published As

Publication number Publication date
EP1831455A1 (en) 2007-09-12
SE526843C2 (sv) 2005-11-08
WO2006071165A1 (en) 2006-07-06
BRPI0506684A (pt) 2007-05-02
CA2553539A1 (en) 2006-07-06
US20090107642A1 (en) 2009-04-30
SE0403222D0 (sv) 2004-12-30
JP2008527184A (ja) 2008-07-24

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Legal Events

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NUG Patent has lapsed