SE9302409L - Massaframställning - Google Patents

Massaframställning

Info

Publication number
SE9302409L
SE9302409L SE9302409A SE9302409A SE9302409L SE 9302409 L SE9302409 L SE 9302409L SE 9302409 A SE9302409 A SE 9302409A SE 9302409 A SE9302409 A SE 9302409A SE 9302409 L SE9302409 L SE 9302409L
Authority
SE
Sweden
Prior art keywords
fiber material
mass production
digestion
comminuted
stage
Prior art date
Application number
SE9302409A
Other languages
Unknown language ( )
English (en)
Other versions
SE9302409D0 (sv
SE502667C2 (sv
Inventor
Christer Fahlgren
Soeren Gustavsson
Petter Tibbling
Ewa Westerlund
Original Assignee
Kvaerner Pulping Tech
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 Tech filed Critical Kvaerner Pulping Tech
Priority to SE9302409A priority Critical patent/SE502667C2/sv
Publication of SE9302409D0 publication Critical patent/SE9302409D0/sv
Priority to US08/224,711 priority patent/US5593544A/en
Priority to ZA944335A priority patent/ZA944335B/xx
Priority to PCT/SE1994/000662 priority patent/WO1995002726A1/en
Priority to CA002166618A priority patent/CA2166618C/en
Priority to AU72405/94A priority patent/AU7240594A/en
Publication of SE9302409L publication Critical patent/SE9302409L/sv
Publication of SE502667C2 publication Critical patent/SE502667C2/sv
Priority to FI960145A priority patent/FI118475B/sv

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
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds

Landscapes

  • Paper (AREA)
SE9302409A 1993-07-12 1993-07-12 Behandling av fibermaterial med komplexbildare före kokning SE502667C2 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9302409A SE502667C2 (sv) 1993-07-12 1993-07-12 Behandling av fibermaterial med komplexbildare före kokning
US08/224,711 US5593544A (en) 1993-07-12 1994-04-08 Pulp production
ZA944335A ZA944335B (en) 1993-07-12 1994-06-17 Pulp production
PCT/SE1994/000662 WO1995002726A1 (en) 1993-07-12 1994-07-05 Pulp production
CA002166618A CA2166618C (en) 1993-07-12 1994-07-05 Pulp production
AU72405/94A AU7240594A (en) 1993-07-12 1994-07-05 Pulp production
FI960145A FI118475B (sv) 1993-07-12 1996-01-12 Förfarande för framställning av pappersmassa

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9302409A SE502667C2 (sv) 1993-07-12 1993-07-12 Behandling av fibermaterial med komplexbildare före kokning

Publications (3)

Publication Number Publication Date
SE9302409D0 SE9302409D0 (sv) 1993-07-12
SE9302409L true SE9302409L (sv) 1995-01-13
SE502667C2 SE502667C2 (sv) 1995-12-04

Family

ID=20390601

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9302409A SE502667C2 (sv) 1993-07-12 1993-07-12 Behandling av fibermaterial med komplexbildare före kokning

Country Status (7)

Country Link
US (1) US5593544A (sv)
AU (1) AU7240594A (sv)
CA (1) CA2166618C (sv)
FI (1) FI118475B (sv)
SE (1) SE502667C2 (sv)
WO (1) WO1995002726A1 (sv)
ZA (1) ZA944335B (sv)

Families Citing this family (24)

* 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
SE510775C2 (sv) * 1996-09-26 1999-06-21 Kvaerner Pulping Tech Svavelfri kokning av kemisk massa
FI122654B (sv) 1997-12-08 2012-05-15 Ovivo Luxembourg Sarl Förfarande för framställning av papperscellulosamassa
FI122655B (sv) * 1998-11-06 2012-05-15 Ovivo Luxembourg Sarl Satsvis process för framställning av massa
EP1010805A1 (en) * 1998-12-18 2000-06-21 Akzo Nobel N.V. Calcium removal in pulping
US7306698B2 (en) * 2001-03-20 2007-12-11 Biopulping International Method for producing pulp
DE60238675D1 (de) * 2001-06-06 2011-02-03 Dequest Ag Verfahren und wässerige zusammensetzung zur herstellung von verbessertem zellstoff
SE520874E (sv) 2001-11-30 2013-01-15 Stfi Packforsk Ab Avlägsnande av oorganiska grundämnen från träflis före kokning till massa
FI122651B (sv) 2004-11-19 2012-05-15 Metso Paper Inc Förfarande och anordning för behandling av flis
US20070131364A1 (en) * 2005-12-14 2007-06-14 University Of Maine Process for treating a cellulose-lignin pulp
US20100224336A1 (en) * 2005-12-14 2010-09-09 University Of Maine System Board Of Trustees Process of bleaching a wood pulp
WO2008076055A1 (en) * 2006-12-19 2008-06-26 Akzo Nobel N.V. Process of pulping
CA2745466C (en) 2008-12-08 2013-04-09 Fpinnovations Increasing alkaline pulping yield for softwood with metal ions
US8490619B2 (en) 2009-11-20 2013-07-23 International Business Machines Corporation Solar energy alignment and collection system
US8026439B2 (en) * 2009-11-20 2011-09-27 International Business Machines Corporation Solar concentration system
US9127859B2 (en) 2010-01-13 2015-09-08 International Business Machines Corporation Multi-point cooling system for a solar concentrator
EP3401410B1 (en) 2010-06-26 2020-12-30 Virdia, Inc. Methods for production of sugar mixtures
IL206678A0 (en) 2010-06-28 2010-12-30 Hcl Cleantech Ltd A method for the production of fermentable sugars
IL207329A0 (en) 2010-08-01 2010-12-30 Robert Jansen A method for refining a recycle extractant and for processing a lignocellulosic material and for the production of a carbohydrate composition
IL207945A0 (en) 2010-09-02 2010-12-30 Robert Jansen Method for the production of carbohydrates
PT106039A (pt) 2010-12-09 2012-10-26 Hcl Cleantech Ltd Processos e sistemas para o processamento de materiais lenhocelulósicos e composições relacionadas
WO2012137201A1 (en) 2011-04-07 2012-10-11 Hcl Cleantech Ltd. Lignocellulose conversion processes and products
BR112014031092B1 (pt) 2012-06-13 2022-05-17 University Of Maine System Board Of Trustees Processo para formar nanofibras de celulose a partir de um material celulósico
KR102049612B1 (ko) * 2014-03-13 2019-11-27 도쿠슈 도카이 세이시 가부시키가이샤 유리 합지

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE314581B (sv) * 1968-10-29 1969-09-08 Mo Och Domsjoe Ab
SE335053B (sv) * 1969-05-13 1971-05-10 Mo Och Domsjoe Ab
CA1031110A (en) * 1974-12-19 1978-05-16 Macmillan Bloedel Limited High yield pulping process
US4091749A (en) * 1975-01-02 1978-05-30 Macmillan Bloedel Limited Alkaline pulping of lignocellulosic material with amine pretreatment
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
US5183535B1 (en) * 1990-02-09 1996-02-06 Sunds Defibrator Rauma Oy Process for preparing kraft pulp using black liquor pretreatment reaction
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
JPH04126885A (ja) * 1990-09-14 1992-04-27 Akio Onda 化学パルプの製造方法
CA2037717C (en) * 1990-09-17 1996-03-05 Bertil Stromberg Extended kraft cooking with white liquor added to wash circulation

Also Published As

Publication number Publication date
WO1995002726A1 (en) 1995-01-26
CA2166618A1 (en) 1995-01-26
SE9302409D0 (sv) 1993-07-12
FI960145L (sv) 1996-01-12
FI118475B (sv) 2007-11-30
SE502667C2 (sv) 1995-12-04
US5593544A (en) 1997-01-14
CA2166618C (en) 2001-04-24
ZA944335B (en) 1995-02-09
AU7240594A (en) 1995-02-13
FI960145A0 (sv) 1996-01-12

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Legal Events

Date Code Title Description
NUG Patent has lapsed