FI122655B - Eräprosessi massan valmistamiseksi - Google Patents

Eräprosessi massan valmistamiseksi Download PDF

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Publication number
FI122655B
FI122655B FI982411A FI982411A FI122655B FI 122655 B FI122655 B FI 122655B FI 982411 A FI982411 A FI 982411A FI 982411 A FI982411 A FI 982411A FI 122655 B FI122655 B FI 122655B
Authority
FI
Finland
Prior art keywords
liquor
process according
digester
meadow
pulp
Prior art date
Application number
FI982411A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI982411A0 (fi
FI982411A (fi
Inventor
Mikael Svedman
Thomas Fant
Seppo Martikainen
Original Assignee
Ovivo Luxembourg Sarl
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 Ovivo Luxembourg Sarl filed Critical Ovivo Luxembourg Sarl
Priority to FI982411A priority Critical patent/FI122655B/fi
Publication of FI982411A0 publication Critical patent/FI982411A0/fi
Priority to US09/830,925 priority patent/US6413367B1/en
Priority to AT0911199A priority patent/AT412405B/de
Priority to PCT/FI1999/000901 priority patent/WO2000028133A1/en
Priority to JP2000581292A priority patent/JP2002529618A/ja
Priority to BR9915044-1A priority patent/BR9915044A/pt
Publication of FI982411A publication Critical patent/FI982411A/fi
Application granted granted Critical
Publication of FI122655B publication Critical patent/FI122655B/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
FI982411A 1998-11-06 1998-11-06 Eräprosessi massan valmistamiseksi FI122655B (fi)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FI982411A FI122655B (fi) 1998-11-06 1998-11-06 Eräprosessi massan valmistamiseksi
US09/830,925 US6413367B1 (en) 1998-11-06 1999-10-27 Treatment of cellulosic material with a chelating agent prior to alkaline delignification
AT0911199A AT412405B (de) 1998-11-06 1999-10-27 Verfahren zum chargenweisen herstellen von pulpen
PCT/FI1999/000901 WO2000028133A1 (en) 1998-11-06 1999-10-27 Treatment of cellulosic material with a chelating agent prior to alkaline delignification
JP2000581292A JP2002529618A (ja) 1998-11-06 1999-10-27 アルカリ性脱リグニン化の前の、キレート化剤を用いるセルロース原料の処理
BR9915044-1A BR9915044A (pt) 1998-11-06 1999-10-27 Processo para a produção de polpa a partir dematerial contendo lignocelulose

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982411 1998-11-06
FI982411A FI122655B (fi) 1998-11-06 1998-11-06 Eräprosessi massan valmistamiseksi

Publications (3)

Publication Number Publication Date
FI982411A0 FI982411A0 (fi) 1998-11-06
FI982411A FI982411A (fi) 2000-05-07
FI122655B true FI122655B (fi) 2012-05-15

Family

ID=8552862

Family Applications (1)

Application Number Title Priority Date Filing Date
FI982411A FI122655B (fi) 1998-11-06 1998-11-06 Eräprosessi massan valmistamiseksi

Country Status (6)

Country Link
US (1) US6413367B1 (pt)
JP (1) JP2002529618A (pt)
AT (1) AT412405B (pt)
BR (1) BR9915044A (pt)
FI (1) FI122655B (pt)
WO (1) WO2000028133A1 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6475338B1 (en) 1996-06-05 2002-11-05 Andritz Inc. Method of minimizing transition metal ions during chemical pulping in a digester by adding chelating agent to the digester
EP1392914B1 (en) * 2001-06-06 2010-12-22 Dequest AG Method and aqueous composition for the production of improved pulp
SE520874E (sv) * 2001-11-30 2012-09-21 Stfi Packforsk Ab Avlägsnande av oorganiska grundämnen från träflis före kokning till massa
SE525065C2 (sv) * 2003-04-17 2004-11-23 Kvaerner Pulping Tech Förbehandling av flis med sur vätska vid ångbasning
FI122651B (fi) * 2004-11-19 2012-05-15 Metso Paper Inc Menetelmä ja laitteisto hakkeen käsittelemiseksi
EP3002365A1 (en) 2005-05-24 2016-04-06 International Paper Company Modified kraft fibers
US7520958B2 (en) 2005-05-24 2009-04-21 International Paper Company Modified kraft fibers
US20070131363A1 (en) * 2005-10-24 2007-06-14 Andritz Inc. Fiberline systems, processes and methods
US7842161B2 (en) * 2006-12-18 2010-11-30 The University Of Maine System Board Of Trustees Pre-extraction and solvent pulping of lignocellulosic material
US7824521B2 (en) * 2006-12-18 2010-11-02 University Of Maine System Board Of Trustees Process of treating a lignocellulosic material with hemicellulose pre-extraction and hemicellulose adsorption
DE102007022754A1 (de) * 2007-05-11 2008-11-13 Voith Patent Gmbh Verfahren zum Verringern des Schwermetallgehalts von lignocellulosischem Rohstoff
SE539706C2 (en) * 2014-11-07 2017-11-07 Valmet Oy Method for recovering hydrolyzate
SE538454C2 (en) * 2014-11-27 2016-07-12 Valmet Oy Method for displacement in batch digesters

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE416481B (sv) 1977-05-02 1981-01-05 Mo Och Domsjoe Ab Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts
US4826567A (en) 1985-08-05 1989-05-02 Interox (Societe Anonyme) Process for the delignification of cellulosic substances by pretreating with a complexing agent followed by hydrogen peroxide
US5002635A (en) * 1985-09-20 1991-03-26 Scott Paper Company Method for producing pulp using pre-treatment with stabilizers and refining
SE502667C2 (sv) * 1993-07-12 1995-12-04 Kvaerner Pulping Tech Behandling av fibermaterial med komplexbildare före kokning
US5339643A (en) 1993-07-12 1994-08-23 Venturedyne Limited Method for defrosting a laboratory freezer door

Also Published As

Publication number Publication date
ATA911199A (de) 2004-07-15
BR9915044A (pt) 2001-10-30
JP2002529618A (ja) 2002-09-10
FI982411A0 (fi) 1998-11-06
AT412405B (de) 2005-02-25
WO2000028133A1 (en) 2000-05-18
FI982411A (fi) 2000-05-07
US6413367B1 (en) 2002-07-02

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: GL&V FINANCE HUNGARY KFT.

Free format text: GL&V FINANCE HUNGARY KFT.

PC Transfer of assignment of patent

Owner name: OVIVO LUXEMBOURG S.à R.L.

Free format text: OVIVO LUXEMBOURG S.à R.L.

FG Patent granted

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