ATE423866T1 - DISCONTINUOUS PROCESS FOR PRODUCING PULP - Google Patents

DISCONTINUOUS PROCESS FOR PRODUCING PULP

Info

Publication number
ATE423866T1
ATE423866T1 AT04805227T AT04805227T ATE423866T1 AT E423866 T1 ATE423866 T1 AT E423866T1 AT 04805227 T AT04805227 T AT 04805227T AT 04805227 T AT04805227 T AT 04805227T AT E423866 T1 ATE423866 T1 AT E423866T1
Authority
AT
Austria
Prior art keywords
liquor
polysulfide
discontinuous process
producing pulp
added
Prior art date
Application number
AT04805227T
Other languages
German (de)
Inventor
Seppo Martikainen
Panu Tikka
Olli Timonen
Mikael Svedman
Original Assignee
Glv Finance Hungary Kft Luxemb
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 Glv Finance Hungary Kft Luxemb filed Critical Glv Finance Hungary Kft Luxemb
Application granted granted Critical
Publication of ATE423866T1 publication Critical patent/ATE423866T1/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.
AT04805227T 2003-12-31 2004-12-22 DISCONTINUOUS PROCESS FOR PRODUCING PULP ATE423866T1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ATE423866T1 true ATE423866T1 (en) 2009-03-15

Family

ID=29763617

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04805227T ATE423866T1 (en) 2003-12-31 2004-12-22 DISCONTINUOUS PROCESS FOR PRODUCING 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
AU2010202496B2 (en) * 2010-05-04 2015-04-16 Bahia Specialty Cellulose Sa Method and system for high alpha dissolving pulp production
PT2567023E (en) * 2010-05-04 2014-12-23 Bahia Specialty Cellulose Sa Method and system for high alpha dissolving pulp production
KR20110123184A (en) 2010-05-06 2011-11-14 바히아 스페셜티 셀룰로스 에스에이 Method and system for high alpha dissolving pulp production
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
US20060175029A1 (en) 2006-08-10
DE602004019689D1 (en) 2009-04-09
WO2005064075A1 (en) 2005-07-14
CA2530704A1 (en) 2005-07-14
FI20031929A0 (en) 2003-12-31
FI20031929A (en) 2005-07-01
EP1702101B1 (en) 2009-02-25
FI120361B (en) 2009-09-30
EP1702101A1 (en) 2006-09-20

Similar Documents

Publication Publication Date Title
ATE470008T1 (en) METHOD FOR PRODUCING PULP AND ARTICLES MADE THEREFROM
ATE325219T1 (en) METHOD FOR PRODUCING MECHANICAL PULP
BR0207845A (en) Process for separating hemicelluloses from hemicellulose-containing biomass as well as biomass and hemicellulose obtained by said process
BR9916641A (en) Steam blast recycling process for fibers and fabrics made from recycled fibers
DK1885954T3 (en) Method of making a paper as well as a paper made according to the method
PT889056E (en) PROCESS FOR PRODUCING ONE, CYCLODEXTRIN.
ATE374856T1 (en) METHOD FOR PRODUCING WOOD PULP AND THE WOOD PULP THEREFORE PRODUCED
DE69920014D1 (en) METHOD FOR PRODUCING PAPER AND CARDBOARD
ATE423866T1 (en) DISCONTINUOUS PROCESS FOR PRODUCING PULP
ATE311488T1 (en) USE OF LOW SPECIFIC GRAVITY WOOD TO PRODUCE LYOCELL PRODUCTS
DE50113869D1 (en) METHOD FOR PRODUCING A SOLUTION FROM A POLYMER CONTAINING RECYCLING AZOLE UNITS
DE3680490D1 (en) METHOD FOR PRODUCING PAPER PRODUCTS.
DE60105435D1 (en) PROCESS FOR THE PREPARATION OF BETA-CARKINE
DE60015563D1 (en) METHOD FOR PRODUCING BENZOPERHYDROISOINDOLS
DE59400866D1 (en) Process for the preparation of folic acid
ES2053664T3 (en) A PROCEDURE FOR PRODUCING DIMETHYLAPHTHALENS.
ATE486846T1 (en) PROCESSING PROCESS FOR PRODUCING DIPHENYLSULPHONE COMPOUNDS
ATE384161T1 (en) METHOD FOR PRODUCING STEAM FROM BLACK LYE
DE60103560D1 (en) PROCESS FOR PRODUCING PACLITAXEL
ATE269297T1 (en) METHOD FOR PRODUCING W-AMINOALKANSULPHONIC ACIDS
DE60334363D1 (en) COOKING OF PULP IN A PREVENTATED BLACK-COOKING COOKING ROUGH
ATA209995A (en) CELLULOSE MOLDED BODY AND METHOD FOR THE PRODUCTION THEREOF
EA200970367A1 (en) BLEACHING OF CELLULOSE
ATE231159T1 (en) NEW PROCESS FOR PRODUCING ETOPOSIDE
NO943379D0 (en) Method of making plates

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification

Ref document number: 1702101

Country of ref document: EP