FI20115659A0 - Menetelmä selluloosamassan valmistamiseksi - Google Patents

Menetelmä selluloosamassan valmistamiseksi

Info

Publication number
FI20115659A0
FI20115659A0 FI20115659A FI20115659A FI20115659A0 FI 20115659 A0 FI20115659 A0 FI 20115659A0 FI 20115659 A FI20115659 A FI 20115659A FI 20115659 A FI20115659 A FI 20115659A FI 20115659 A0 FI20115659 A0 FI 20115659A0
Authority
FI
Finland
Prior art keywords
production
cellulosic pulp
cellulosic
pulp
Prior art date
Application number
FI20115659A
Other languages
English (en)
Swedish (sv)
Other versions
FI127420B (fi
Inventor
Esko Turunen
Kari Kovasin
Original Assignee
Metsae Botnia Ab Oy
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 Metsae Botnia Ab Oy filed Critical Metsae Botnia Ab Oy
Priority to FI20115659A priority Critical patent/FI127420B/fi
Publication of FI20115659A0 publication Critical patent/FI20115659A0/fi
Priority to EP12172946.1A priority patent/EP2537979B1/en
Priority to US13/530,277 priority patent/US8758555B2/en
Priority to CA2780587A priority patent/CA2780587A1/en
Priority to RU2012126021A priority patent/RU2606867C2/ru
Application granted granted Critical
Publication of FI127420B publication Critical patent/FI127420B/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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline 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
    • D21C3/02—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
    • 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)
FI20115659A 2011-06-23 2011-06-23 Menetelmä selluloosamassan valmistamiseksi FI127420B (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI20115659A FI127420B (fi) 2011-06-23 2011-06-23 Menetelmä selluloosamassan valmistamiseksi
EP12172946.1A EP2537979B1 (en) 2011-06-23 2012-06-21 Method of producing cellulose pulp
US13/530,277 US8758555B2 (en) 2011-06-23 2012-06-22 Method of producing cellulose pulp
CA2780587A CA2780587A1 (en) 2011-06-23 2012-06-22 Method of producing cellulose pulp
RU2012126021A RU2606867C2 (ru) 2011-06-23 2012-06-22 Способ изготовления целлюлозной массы

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20115659A FI127420B (fi) 2011-06-23 2011-06-23 Menetelmä selluloosamassan valmistamiseksi

Publications (2)

Publication Number Publication Date
FI20115659A0 true FI20115659A0 (fi) 2011-06-23
FI127420B FI127420B (fi) 2018-05-31

Family

ID=44206867

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20115659A FI127420B (fi) 2011-06-23 2011-06-23 Menetelmä selluloosamassan valmistamiseksi

Country Status (5)

Country Link
US (1) US8758555B2 (fi)
EP (1) EP2537979B1 (fi)
CA (1) CA2780587A1 (fi)
FI (1) FI127420B (fi)
RU (1) RU2606867C2 (fi)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3661698A (en) * 1969-10-08 1972-05-09 Pulp Paper Res Inst Production of pulp by a multi-stage ammonium polysulphide pulping process
US3664919A (en) 1969-12-09 1972-05-23 Pulp Paper Res Inst Vapor phase polysulphide liquid pulping of lignocellulosic materials
SE9703365D0 (sv) * 1997-09-18 1997-09-18 Kvaerner Pulping Tech Method in connection with impregnation and digestion of lignocelulosic material
JP4205855B2 (ja) * 1997-09-18 2009-01-07 ケムレック アクチボラグ ポリサルファイドパルプ化プロセス
US6241851B1 (en) * 1998-03-03 2001-06-05 Andritz-Ahlstrom Inc. Treatment of cellulose material with additives while producing cellulose pulp
US6153052A (en) * 1998-10-09 2000-11-28 Pulp And Paper Research Institute Of Canada Pulping process
SE518538C2 (sv) 2001-12-14 2002-10-22 Kvaerner Pulping Tech Förbehandling av flis med färsk vitlut före behandling med svartlut
FI120361B (fi) 2003-12-31 2009-09-30 Gl & V Finance Hungary Kft Eräkeittomenetelmä kraftmassan valmistamiseksi
US20070240837A1 (en) * 2006-04-13 2007-10-18 Andritz Inc. Hardwood alkaline pulping processes and systems
US7828930B2 (en) 2007-11-20 2010-11-09 International Paper Company Use of polysulfide in modified cooking
RU2011144375A (ru) * 2009-04-02 2013-05-10 Оберн Юниверсити Способ варки целлюлозы для повышения выхода и качества, включающий способы экстракции гемицеллюлозы и обработки лигноцеллюлозных материалов после экстракции гемицеллюлозы

Also Published As

Publication number Publication date
EP2537979C0 (en) 2024-03-27
FI127420B (fi) 2018-05-31
CA2780587A1 (en) 2012-12-23
US20120325417A1 (en) 2012-12-27
EP2537979B1 (en) 2024-03-27
RU2012126021A (ru) 2013-12-27
RU2606867C2 (ru) 2017-01-10
EP2537979A1 (en) 2012-12-26
US8758555B2 (en) 2014-06-24

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Legal Events

Date Code Title Description
PC Transfer of assignment of patent

Owner name: METSAE FIBRE OY

PC Transfer of assignment of patent

Owner name: ANDRITZ OY

FG Patent granted

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