FI20031929A0 - Batch cooking process for cellulose production - Google Patents

Batch cooking process for cellulose production

Info

Publication number
FI20031929A0
FI20031929A0 FI20031929A FI20031929A FI20031929A0 FI 20031929 A0 FI20031929 A0 FI 20031929A0 FI 20031929 A FI20031929 A FI 20031929A FI 20031929 A FI20031929 A FI 20031929A FI 20031929 A0 FI20031929 A0 FI 20031929A0
Authority
FI
Finland
Prior art keywords
liquor
cooking process
cellulose production
batch cooking
polysulfide
Prior art date
Application number
FI20031929A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20031929A (en
FI120361B (en
Original Assignee
Metso Paper Inc
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 Metso Paper Inc filed Critical Metso Paper Inc
Priority to FI20031929A priority Critical patent/FI120361B/en
Publication of FI20031929A0 publication Critical patent/FI20031929A0/en
Priority to AT04805227T priority patent/ATE423866T1/en
Priority to PCT/FI2004/050196 priority patent/WO2005064075A1/en
Priority to EP04805227A priority patent/EP1702101B1/en
Priority to US10/564,373 priority patent/US20060175029A1/en
Priority to CA002530704A priority patent/CA2530704A1/en
Priority to DE602004019689T priority patent/DE602004019689D1/en
Publication of FI20031929A publication Critical patent/FI20031929A/en
Application granted granted Critical
Publication of FI120361B publication Critical patent/FI120361B/en

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • 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
    • 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
    • D21C3/26—Multistage processes

Landscapes

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

According to the invention, polysulfide is used in the manufacture of kraft pulp in the initial stage of a displacement batch process in order to improve the yield. Polysulfide-containing white liquor is added inter-mixed with the first liquor charged to the digester, or as a separate charge before the impregnation liquor is introduced. Preferably, a cooking catalyst, e.g. antraquinone, is added to the white liquor charge as the cooking stage commences.
FI20031929A 2003-12-31 2003-12-31 Batch cooking process for the production of kraft pulp FI120361B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FI20031929A FI120361B (en) 2003-12-31 2003-12-31 Batch cooking process for the production of kraft pulp
AT04805227T ATE423866T1 (en) 2003-12-31 2004-12-22 DISCONTINUOUS PROCESS FOR PRODUCING PULP
PCT/FI2004/050196 WO2005064075A1 (en) 2003-12-31 2004-12-22 Batch process for preparing pulp
EP04805227A EP1702101B1 (en) 2003-12-31 2004-12-22 Batch process for preparing pulp
US10/564,373 US20060175029A1 (en) 2003-12-31 2004-12-22 Batch process for preparing pulp
CA002530704A CA2530704A1 (en) 2003-12-31 2004-12-22 Batch process for preparing pulp
DE602004019689T DE602004019689D1 (en) 2003-12-31 2004-12-22 DISCONTINUOUS METHOD FOR THE PRODUCTION OF PULP

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20031929 2003-12-31
FI20031929A FI120361B (en) 2003-12-31 2003-12-31 Batch cooking process for the production of kraft pulp

Publications (3)

Publication Number Publication Date
FI20031929A0 true FI20031929A0 (en) 2003-12-31
FI20031929A FI20031929A (en) 2005-07-01
FI120361B FI120361B (en) 2009-09-30

Family

ID=29763617

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20031929A FI120361B (en) 2003-12-31 2003-12-31 Batch cooking process for the production of kraft pulp

Country Status (7)

Country Link
US (1) US20060175029A1 (en)
EP (1) EP1702101B1 (en)
AT (1) ATE423866T1 (en)
CA (1) CA2530704A1 (en)
DE (1) DE602004019689D1 (en)
FI (1) FI120361B (en)
WO (1) WO2005064075A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7828930B2 (en) * 2007-11-20 2010-11-09 International Paper Company Use of polysulfide in modified cooking
KR20110123184A (en) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 Method and system for high alpha dissolving pulp production
AU2010202496B2 (en) * 2010-05-04 2015-04-16 Bahia Specialty Cellulose Sa Method and system for high alpha dissolving pulp production
PT2567022E (en) * 2010-05-04 2014-12-23 Bahia Specialty Cellulose Sa Method and system for pulp processing using cold caustic extraction with alkaline filtrate reuse
FI127420B (en) 2011-06-23 2018-05-31 Andritz Oy Process for producing cellulose pulp
FI129362B (en) * 2017-05-16 2021-12-31 Andritz Oy Method for producing chemical pulp

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578149A (en) * 1981-03-05 1986-03-25 Fagerlund Bertil K E Process for digesting cellulosic material with heat recovery
FI71176C (en) * 1983-11-30 1991-12-03 Ekono Oy Process for preparing cellulose with batch boiling
US5183535B1 (en) * 1990-02-09 1996-02-06 Sunds Defibrator Rauma Oy Process for preparing kraft pulp using black liquor pretreatment reaction
FI92224C (en) * 1991-06-28 1994-10-10 Sunds Defibrator Rauma Oy Batch process for the production of cogeneration
FI105929B (en) * 1996-05-30 2000-10-31 Sunds Defibrator Pori Oy An improved batch process for the preparation of sulphate cellulose
FI970254A (en) * 1997-01-22 1998-07-23 Ahlstrom Machinery Oy Method and apparatus for cooking pulp
SE9703365D0 (en) * 1997-09-18 1997-09-18 Kvaerner Pulping Tech Method in connection with impregnation and digestion of lignocelulosic material
JP4205855B2 (en) * 1997-09-18 2009-01-07 ケムレック アクチボラグ Polysulfide pulping process
FI110327B (en) * 1999-10-04 2002-12-31 Metso Chemical Pulping Oy Process for the production of pulp

Also Published As

Publication number Publication date
EP1702101B1 (en) 2009-02-25
ATE423866T1 (en) 2009-03-15
US20060175029A1 (en) 2006-08-10
WO2005064075A1 (en) 2005-07-14
EP1702101A1 (en) 2006-09-20
DE602004019689D1 (en) 2009-04-09
FI20031929A (en) 2005-07-01
CA2530704A1 (en) 2005-07-14
FI120361B (en) 2009-09-30

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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.

FG Patent granted

Ref document number: 120361

Country of ref document: FI

PC Transfer of assignment of patent

Owner name: OVIVO LUXEMBOURG S.à R.L.

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

MM Patent lapsed