WO2008098601A2 - Blanchiment à base de fas - Google Patents

Blanchiment à base de fas Download PDF

Info

Publication number
WO2008098601A2
WO2008098601A2 PCT/EP2007/010166 EP2007010166W WO2008098601A2 WO 2008098601 A2 WO2008098601 A2 WO 2008098601A2 EP 2007010166 W EP2007010166 W EP 2007010166W WO 2008098601 A2 WO2008098601 A2 WO 2008098601A2
Authority
WO
WIPO (PCT)
Prior art keywords
fas
bleaching
pulp
primary
iso
Prior art date
Application number
PCT/EP2007/010166
Other languages
German (de)
English (en)
Other versions
WO2008098601A3 (fr
Inventor
Hans-Ludwig Schubert
Esa-Matt Aalto
Rudolf Patt
Othar Kordsachia
Original Assignee
Voith Patent Gmbh
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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2008098601A2 publication Critical patent/WO2008098601A2/fr
Publication of WO2008098601A3 publication Critical patent/WO2008098601A3/fr

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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
    • 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Definitions

  • the yield of Primärmaschinen0 after FAS treatment is at least 95%, preferably at least 97%, more preferably at least 98% based on the initial amount of otro pulp.
  • the high yield is very advantageous especially for high-yield fibers, which aim at the lowest possible yield losses.
  • the high yield is achieved because FAS does not cause degradation of the pulp. Rather, only chromophore5 groups are converted.
  • the FAS bleaching occurs at a pH above 5.
  • the effect of FAS is not decisively determined by the pH.
  • the invention further relates to a bleached primary pulp of lignocellulosic material, wherein the primary pulp of softwood has a lignin content of at least 15% based on otro pulp, a breaking length of at least 7 km and a Buik of at least 1.25 at 20 0 SR , and wherein the primary pulp made
  • RPV13309 WO.RTF Hardwood has a lignin content of at least 15% based on otro pulp, a breaking length of at least 6 km and a buik of at least 1.2 at 30 0 SR.
  • Such a primary pulp is preferably obtained when a high yield sulfite pulp is bleached using FAS.
  • the yield was calculated by weighing the raw material used and the pulp obtained after the digestion or bleaching, in each case at 105 ° C. dried to constant weight (atro).
  • the lignin content was determined as Klason lignin according to TAPPT T 222 om-98.
  • the acid-soluble lignin was determined according to TAPPI UM 250.
  • the paper-technological properties were determined on test sheets which were produced according to Zellcheming leaflet V / 8/76. 0 - The degree of grinding was recorded according to Zellcheming leaflet V / 3/62.
  • the tear length was determined according to Zellcheming Regulation V / 12/57.
  • the whiteness was determined by preparing the test sheets according to Zellcheming leaflet V / 19/63, measured according to SCAN C 11:75 with a Datacolor elrepho 450 x photometer; the whiteness is given in percent according to ISO standard 2470. 0 -
  • the term "otro" in this document refers to "oven-dry” material which has been dried at 105 ° C. to constant weight.
  • Example 2 Bleaching of Spruce High Yield Fiber
  • the spruce pulp according to Example 1 was bleached with a bleach sequence followed by a peroxide bleach after an initial treatment with DTPA (Q-step).
  • the FAS treatment completed the bleaching. 5

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un blanchiment, ménageant la lignine, par l'acide formamidinesulfinique (FAS) de fibres primaires lignocellulosiques obtenues sous l'action de sulfites. L'invention concerne également une matière fibreuse blanchie composée de matière lignocellulosique obtenue sous l'action de sulfites, la matière fibreuse primaire constituée de bois conifère présentant une teneur en lignine d'au moins 15 % par rapport à l'autre matière fibreuse et une longueur de rupture d'au moins 7 km pour 20 °SR, et la matière fibreuse primaire de bois feuillu présentant une teneur en lignine d'au moins 15 % par rapport à l'autre matière fibreuse et une longueur de rupture d'au moins 6 km pour 30 °SR.
PCT/EP2007/010166 2007-02-13 2007-11-23 Blanchiment à base de fas WO2008098601A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710007654 DE102007007654A1 (de) 2007-02-13 2007-02-13 FAS Bleiche
DE102007007654.3 2007-02-13

Publications (2)

Publication Number Publication Date
WO2008098601A2 true WO2008098601A2 (fr) 2008-08-21
WO2008098601A3 WO2008098601A3 (fr) 2008-10-09

Family

ID=39597675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/010166 WO2008098601A2 (fr) 2007-02-13 2007-11-23 Blanchiment à base de fas

Country Status (2)

Country Link
DE (1) DE102007007654A1 (fr)
WO (1) WO2008098601A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009010696A1 (de) 2009-02-27 2010-09-02 Voith Patent Gmbh Verfahren zur Herstellung von Magazinpapier

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0187477A1 (fr) * 1984-12-21 1986-07-16 Pulp and Paper Research Institute of Canada Blanchiment multistade de pâtes de bois à haut et très haut rendement
US20020098317A1 (en) * 1999-02-24 2002-07-25 Thomas Jaschinski Oxidized cellulose-containing fibrous materials and products made therefrom
US20020129912A1 (en) * 2000-12-22 2002-09-19 Sca Hygiene Products Gmbh Fully bleached sulfite chemical pulp, a process for the production thereof and products derived therefrom
WO2003048450A1 (fr) * 2001-11-28 2003-06-12 Warwick International Group Limited Blanchiment de fibres recyclees
US20030155085A1 (en) * 2002-02-15 2003-08-21 Naddeo Ronald C. Process for bleaching pulp or paper
US20050279467A1 (en) * 2004-06-22 2005-12-22 Fort James Corporation Process for high temperature peroxide bleaching of pulp with cool discharge
WO2006110751A1 (fr) * 2005-04-08 2006-10-19 Nalco Company Composition amelioree et procedes de production de papier

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3309956C1 (de) * 1983-03-19 1984-07-12 Degussa Ag, 6000 Frankfurt Verfahren zum Bleichen von Papierrohstoffen
DE19833629A1 (de) * 1998-05-20 1999-11-25 Degussa FAS-Abmischungen
US6428653B1 (en) * 2000-12-04 2002-08-06 West Fraser Timber Co. Ltd. Method of bleaching with formamidine sulfinic acid using a reducing agent to eliminate residual peroxide
DE10064131C2 (de) * 2000-12-22 2003-03-27 Sca Hygiene Prod Gmbh Vollgebleichter Sulfit-Zellstoff, Verfahren zu seiner Herstellung und daraus hergestellte Produkte
EP1375734A1 (fr) * 2002-06-17 2004-01-02 SCA Hygiene Products GmbH Pâte chimique au sulfite blanchie et résistante, procédé de production et produits obtenus
DE10320618A1 (de) * 2003-05-08 2004-11-18 Papierfabrik Albbruck Gmbh & Co. Kg Verfahren zum Bleichen von Faserstoffen
DE102006027005A1 (de) * 2006-06-08 2007-12-13 Voith Patent Gmbh Lignocellulosischer Faserstoff aus Holz
DE102006027006A1 (de) 2006-06-08 2007-12-13 Voith Patent Gmbh Verfahren zum Herstellen von Faserstoff aus Holz

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0187477A1 (fr) * 1984-12-21 1986-07-16 Pulp and Paper Research Institute of Canada Blanchiment multistade de pâtes de bois à haut et très haut rendement
US20020098317A1 (en) * 1999-02-24 2002-07-25 Thomas Jaschinski Oxidized cellulose-containing fibrous materials and products made therefrom
US20020129912A1 (en) * 2000-12-22 2002-09-19 Sca Hygiene Products Gmbh Fully bleached sulfite chemical pulp, a process for the production thereof and products derived therefrom
WO2003048450A1 (fr) * 2001-11-28 2003-06-12 Warwick International Group Limited Blanchiment de fibres recyclees
US20030155085A1 (en) * 2002-02-15 2003-08-21 Naddeo Ronald C. Process for bleaching pulp or paper
US20050279467A1 (en) * 2004-06-22 2005-12-22 Fort James Corporation Process for high temperature peroxide bleaching of pulp with cool discharge
WO2006110751A1 (fr) * 2005-04-08 2006-10-19 Nalco Company Composition amelioree et procedes de production de papier

Also Published As

Publication number Publication date
WO2008098601A3 (fr) 2008-10-09
DE102007007654A1 (de) 2008-08-14

Similar Documents

Publication Publication Date Title
DE69839097T2 (de) Bleichen von zellstoff mittels persäure
DE69912128T2 (de) Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material
EP0494214B1 (fr) Procede pour fabriquer des pates chimio-mecaniques et/ou chimio-thermo-mecaniques
WO2007140838A2 (fr) Matière fibreuse lignocellulosique à partir de bois
DE1594861C3 (fr)
DE10229546B4 (de) Verfahren zum Delignifizieren lignocellulosischer Rohstoffe
WO2008098601A2 (fr) Blanchiment à base de fas
DE3802401A1 (de) Verfahren zur herstellung von halbgebleichtem kraftzellstoff
WO2009015699A1 (fr) Matière fibreuse lignocellulosique issue de plantes annuelles
DE2124324C3 (de) Verfahren zum Bleichen von Holzzellstoffen
DE2601380C2 (de) Verfahren zur Herstellung von gebleichter mechanischer Pulpe
DE2005526C3 (de) Verfahren zur Herstellung von Zellstoff
US4487656A (en) Process for bleaching paper pulp using melamine as a viscosity stabilizer
US4526651A (en) Process for oxygen bleaching paper pulp using melamine as a viscosity stabilizer
AT404478B (de) Celluloseherstellung
DE2124325C3 (de) Verfahren zum Bleichen von chemischen Holzzellstoff
WO2009015704A1 (fr) Fibres blanchies
DE2105324A1 (en) Production of papermaking pulps
DE102007022753A1 (de) Verfahren zum Zerfasern von chemisch behandeltem, lignocellulosischem Rohstoff
EP0479319B1 (fr) Procédé pour le blanchiment et la délignification pauvre en chlore de pâtes cellulosiques
DE2413123B2 (de) Bleichverfahren auf sauerstoffbasis fuer kraftpulpe
DE102007022752A1 (de) Bleichen von lignocellulosischen Primärfasern
DE4307660C1 (de) Herstellung chemo-mechanischer und/oder chemo-thermo-mechanischer Holzstoffe
AT203839B (de) Verfahren zur Gewinnung von gebleichtem Halbzellstoff
DE2833115A1 (de) Verfahren zur herstellung von chemischen massen fuer die papierherstellung

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07846767

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07846767

Country of ref document: EP

Kind code of ref document: A2