ES2166398T3 - Metodo para el tratamiento complejo de pasta papelera conjuntamente con una etapa de dioxido de cloro. - Google Patents

Metodo para el tratamiento complejo de pasta papelera conjuntamente con una etapa de dioxido de cloro.

Info

Publication number
ES2166398T3
ES2166398T3 ES95915365T ES95915365T ES2166398T3 ES 2166398 T3 ES2166398 T3 ES 2166398T3 ES 95915365 T ES95915365 T ES 95915365T ES 95915365 T ES95915365 T ES 95915365T ES 2166398 T3 ES2166398 T3 ES 2166398T3
Authority
ES
Spain
Prior art keywords
bleaching
cellulose pulp
chlorine dioxide
chlorine
dioxide stage
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95915365T
Other languages
English (en)
Inventor
Otto Sten Axel Gusta Lindeberg
Lars Ake Gunnar Ahlenius
Jan Georg Liden
Sture Erik Olof Noreus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metsa Board Oyj
Original Assignee
M Real Oyj
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 M Real Oyj filed Critical M Real Oyj
Application granted granted Critical
Publication of ES2166398T3 publication Critical patent/ES2166398T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Catalysts (AREA)

Abstract

LA INVENCION SE REFIERE A UN METODO PARA LA MANUFACTURA DE PULPA DE CELULOSA BLANQUEADA, EN CONJUNCION CON LA CUAL SE DIGIERE UN MATERIAL DE LIGNOCELULOSA PARA FORMAR PULPA DE CELULOSA POR MEDIO DE UN LICOR DE DIGESTION ALCALINO, Y LA PULPA DE CELULOSA EN FORMA DE SUSPENSION SE TAMIZA, SI FUERA NECESARIO, Y SE EXPONE EN SERIE A AL MENOS LA DESLIGNIFICACION/BLANQUEADO MEDIANTE GAS DE OXIGENO (O), SI SE REQUIERE, AL BLANQUEADO MEDIANTE DIOXIDO DE CLORO (D) Y AL BLANQUEADO CON UN AGENTE BLANQUEADOR OXIDATIVO, QUE NO CONTENGA CLORO (O,P,Z), CON LAS DIFERENTES ETAPAS DE BLANQUEADO INTERCALADAS CON EL LAVADO Y/O RECONCENTRACION DE LA PULPA DE CELULOSA EN AL MENOS UNA ETAPA, EL PROCESO SE CARACTERIZA EN QUE SE AÑADEN AGENTES COMPLEJADORES A LA PULPA DE CELULOSA EN CONJUNCION CON EL BLANQUEADOR DE DIOXIDO DE CLORO. TAMBIEN ES IMPORTANTE QUE EL COCIENTE MOL DE LA PULPA DE CELULOSA PARA EL MAGNESIO/MANGANESO, DURANTE EL BLANQUEADO CON UN AGENTE BLANQUEADOR OXIDATIVO, QUE NO CONTENGA CLORO, SE MANTENGA O SE APROXIME A UN VALOR QUE EXCEDA DE 20, Y PREFERIBLEMENTE QUE EXCEDA DE 40.
ES95915365T 1994-04-05 1995-04-04 Metodo para el tratamiento complejo de pasta papelera conjuntamente con una etapa de dioxido de cloro. Expired - Lifetime ES2166398T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401125A SE502706E (sv) 1994-04-05 1994-04-05 Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg

Publications (1)

Publication Number Publication Date
ES2166398T3 true ES2166398T3 (es) 2002-04-16

Family

ID=20393524

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95915365T Expired - Lifetime ES2166398T3 (es) 1994-04-05 1995-04-04 Metodo para el tratamiento complejo de pasta papelera conjuntamente con una etapa de dioxido de cloro.

Country Status (15)

Country Link
US (1) US6258208B1 (es)
EP (1) EP0754258B1 (es)
JP (1) JP3716349B2 (es)
AT (1) ATE212086T1 (es)
AU (1) AU690254B2 (es)
BR (1) BR9507286A (es)
CA (1) CA2185808C (es)
DE (1) DE69525045T2 (es)
ES (1) ES2166398T3 (es)
FI (1) FI116392B (es)
NO (1) NO320161B1 (es)
NZ (1) NZ283828A (es)
PT (1) PT754258E (es)
SE (1) SE502706E (es)
WO (1) WO1995027100A1 (es)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE514697C2 (sv) 1994-08-31 2001-04-02 Valmet Fibertech Ab Eliminering av metalljoner vid blekning av massa
US6706143B1 (en) * 1996-03-19 2004-03-16 International Paper Company Minimizing chlorinated organics in pulp bleaching processes
US6375797B1 (en) * 1996-06-20 2002-04-23 Andritz-Ahlstrom Oy Bleaching chemical pulp in a PkDQ-Po Sequence
SE507742C2 (sv) * 1996-11-08 1998-07-06 Sunds Defibrator Ind Ab Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar
FI105214B (fi) 1997-11-13 2000-06-30 Kemira Chemicals Oy Tehostettu kemiallisen massan valkaisumenetelmä
WO2003074780A1 (en) * 2002-03-06 2003-09-12 Iogen Bio-Products Corporation Xylanase treatment of chemical pulp
SE0200981D0 (sv) * 2002-03-28 2002-03-28 Eka Chemicals Ab Process for bleaching lignocellulose-containing non-wood pulp
US20050045291A1 (en) * 2002-08-08 2005-03-03 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
SE521780C2 (sv) * 2003-01-31 2003-12-09 Kvaerner Pulping Tech Förfarande för blekning av cellulosamassa samt bleklinje härför
US7541396B2 (en) * 2004-12-29 2009-06-02 Weyerhaeuser Nr Company Method for making carboxyalkyl cellulose
FI122626B (fi) * 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
FI123102B (fi) * 2006-03-31 2012-11-15 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
US20080110584A1 (en) * 2006-11-15 2008-05-15 Caifang Yin Bleaching process with at least one extraction stage
US7976676B2 (en) * 2006-12-18 2011-07-12 International Paper Company Process of bleaching softwood pulps in a D1 or D2 stage in a presence of a weak base
US7976677B2 (en) * 2006-12-18 2011-07-12 International Paper Company Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base
EP2113044A1 (en) * 2007-02-21 2009-11-04 SOLVAY (Société Anonyme) Process for the bleaching of paper pulp
US9388251B2 (en) * 2011-06-30 2016-07-12 Nano-Green Biorefineries Inc. Catalytic biomass conversion
JP6882307B2 (ja) 2016-01-28 2021-06-02 ナノ − グリーン バイオリファイナリーズ インコーポレイテッド 結晶性セルロースの製造
FR3062138B1 (fr) * 2017-01-23 2019-06-07 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de blanchiment d'une pate a papier
SE544255C2 (en) * 2020-09-03 2022-03-15 Valmet Oy System for producing cellulose pulp and method for controlling such a system
SE545758C2 (en) * 2022-06-20 2024-01-02 Valmet Oy Method for bleaching pulp from recycled textile material

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219504C2 (de) 1972-04-21 1974-10-03 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
DE2841013C2 (de) * 1978-09-21 1984-06-07 Degussa Ag, 6000 Frankfurt Verfahren zur Vollbleiche von Zellstoff
US4238282A (en) * 1979-07-23 1980-12-09 Nalco Chemical Company Chemical treatments in bleaching stages which increase pulp brightness
WO1988004706A1 (en) 1986-12-22 1988-06-30 Aga Aktiebolag Method for washing of alcaline pulp
US4959124A (en) 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
SE9000340L (sv) 1990-01-31 1991-08-01 Eka Nobel Ab Foerfarande vid blekning av lignocellulosahaltigt material
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5352332A (en) * 1991-01-28 1994-10-04 Maples Gerald E Process for recycling bleach plant filtrate
CA2150810A1 (en) * 1993-03-12 1994-09-15 Karl-Erik L. Eriksson Process for bleaching pulp
DE69420306T2 (de) 1993-04-20 2000-04-20 Eka Chemicals Ab Verfahren zum Bleichen von Lignozellulose-enthaltendem Zellstoff

Also Published As

Publication number Publication date
NZ283828A (en) 1997-05-26
NO964223D0 (no) 1996-10-04
EP0754258B1 (en) 2002-01-16
FI963985A (fi) 1996-10-04
CA2185808C (en) 2004-11-30
PT754258E (pt) 2002-06-28
CA2185808A1 (en) 1995-10-12
JP3716349B2 (ja) 2005-11-16
ATE212086T1 (de) 2002-02-15
SE502706C2 (sv) 1995-12-11
US6258208B1 (en) 2001-07-10
FI963985A0 (fi) 1996-10-04
EP0754258A1 (en) 1997-01-22
DE69525045D1 (de) 2002-02-21
SE9401125D0 (sv) 1994-04-05
BR9507286A (pt) 1997-09-23
WO1995027100A1 (en) 1995-10-12
FI116392B (fi) 2005-11-15
SE502706E (sv) 1999-09-27
NO320161B1 (no) 2005-11-07
NO964223L (no) 1996-10-04
SE9401125L (sv) 1995-10-06
JPH09511031A (ja) 1997-11-04
AU2226495A (en) 1995-10-23
AU690254B2 (en) 1998-04-23
DE69525045T2 (de) 2002-08-29

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