EP1834034A4 - Procede de delignification a l'oxygene de la pate a papier par melange de substances chimiques - Google Patents

Procede de delignification a l'oxygene de la pate a papier par melange de substances chimiques

Info

Publication number
EP1834034A4
EP1834034A4 EP05777705A EP05777705A EP1834034A4 EP 1834034 A4 EP1834034 A4 EP 1834034A4 EP 05777705 A EP05777705 A EP 05777705A EP 05777705 A EP05777705 A EP 05777705A EP 1834034 A4 EP1834034 A4 EP 1834034A4
Authority
EP
European Patent Office
Prior art keywords
chemicals
mixing
cellulose pulp
oxygen delignification
delignification
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP05777705A
Other languages
German (de)
English (en)
Other versions
EP1834034A1 (fr
Inventor
Vidar Snekkenes
Jonas Saetheraasen
Lennart Gustavsson
Martin Ragnar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metso Fiber Karlstad AB
Original Assignee
Kvaerner Pulping AB
Kvaerner Pulping Technologies 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 Kvaerner Pulping AB, Kvaerner Pulping Technologies AB filed Critical Kvaerner Pulping AB
Publication of EP1834034A1 publication Critical patent/EP1834034A1/fr
Publication of EP1834034A4 publication Critical patent/EP1834034A4/fr
Withdrawn legal-status Critical Current

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)
EP05777705A 2004-12-30 2005-09-05 Procede de delignification a l'oxygene de la pate a papier par melange de substances chimiques Withdrawn EP1834034A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0403202A SE0403202L (sv) 2004-12-30 2004-12-30 Metod för syrgasdelignifiering av cellulosamassa med inmixning av kemikalier vid högt tryck
PCT/SE2005/001274 WO2006071163A1 (fr) 2004-12-30 2005-09-05 Procede de delignification a l'oxygene de la pate a papier par melange de substances chimiques

Publications (2)

Publication Number Publication Date
EP1834034A1 EP1834034A1 (fr) 2007-09-19
EP1834034A4 true EP1834034A4 (fr) 2012-12-19

Family

ID=34102144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05777705A Withdrawn EP1834034A4 (fr) 2004-12-30 2005-09-05 Procede de delignification a l'oxygene de la pate a papier par melange de substances chimiques

Country Status (7)

Country Link
US (1) US20080271861A1 (fr)
EP (1) EP1834034A4 (fr)
JP (1) JP2008527183A (fr)
BR (1) BRPI0506424A (fr)
CA (1) CA2559362A1 (fr)
SE (1) SE0403202L (fr)
WO (1) WO2006071163A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100317053A1 (en) * 2009-06-15 2010-12-16 Andritz Inc. Process machinery for feeding pre-treated lignocellulosic materials into bioreactors for bio-fuels and biochemicals
SE540043C2 (en) * 2015-11-27 2018-03-06 Valmet Oy Method and system for oxygen delignification of cellulose pulp

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030158A1 (fr) * 1979-12-03 1981-06-10 The Black Clawson Company Appareil et procédé de délignification au moyen d'oxygène d'une pâte à consistance moyenne
WO1997017489A1 (fr) * 1994-05-10 1997-05-15 Stora Kopparbergs Bergslags Ab Procede de delignification a l'oxygene
WO1998023810A1 (fr) * 1996-11-26 1998-06-04 Sunds Defibrator Industries Ab Procede de gestion de la delignification a l'oxygene de pate
US6162324A (en) * 1995-12-07 2000-12-19 Beloit Technologies, Inc. Oxygen delignification of medium consistency pulp slurry using two alkali additions
EP1067237A1 (fr) * 1999-07-06 2001-01-10 Kvaerner Pulping Ab Appareil et procédé pour la délignification à l'oxygène d'une matière lignocellulosique
US6221206B1 (en) * 1995-10-23 2001-04-24 Valmet Fibertech Aktiebolag Method for oxygen delignification of a digested pulp
US20010035272A1 (en) * 1995-10-23 2001-11-01 Monica Bokstrom Method for oxygen delignification of a digested pulp

Family Cites Families (2)

* 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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0030158A1 (fr) * 1979-12-03 1981-06-10 The Black Clawson Company Appareil et procédé de délignification au moyen d'oxygène d'une pâte à consistance moyenne
WO1997017489A1 (fr) * 1994-05-10 1997-05-15 Stora Kopparbergs Bergslags Ab Procede de delignification a l'oxygene
US6221206B1 (en) * 1995-10-23 2001-04-24 Valmet Fibertech Aktiebolag Method for oxygen delignification of a digested pulp
US20010035272A1 (en) * 1995-10-23 2001-11-01 Monica Bokstrom Method for oxygen delignification of a digested pulp
US6162324A (en) * 1995-12-07 2000-12-19 Beloit Technologies, Inc. Oxygen delignification of medium consistency pulp slurry using two alkali additions
WO1998023810A1 (fr) * 1996-11-26 1998-06-04 Sunds Defibrator Industries Ab Procede de gestion de la delignification a l'oxygene de pate
EP1067237A1 (fr) * 1999-07-06 2001-01-10 Kvaerner Pulping Ab Appareil et procédé pour la délignification à l'oxygène d'une matière lignocellulosique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2006071163A1 *

Also Published As

Publication number Publication date
SE0403202D0 (sv) 2004-12-30
WO2006071163A1 (fr) 2006-07-06
SE526707C2 (sv) 2005-10-25
SE0403202L (sv) 2005-10-25
BRPI0506424A (pt) 2006-12-26
EP1834034A1 (fr) 2007-09-19
JP2008527183A (ja) 2008-07-24
US20080271861A1 (en) 2008-11-06
CA2559362A1 (fr) 2006-07-06

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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A4 Supplementary search report drawn up and despatched

Effective date: 20121116

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Ipc: D21C 9/147 20060101AFI20121112BHEP

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Effective date: 20130615