PT2655732E - Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel - Google Patents

Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel Download PDF

Info

Publication number
PT2655732E
PT2655732E PT118023761T PT11802376T PT2655732E PT 2655732 E PT2655732 E PT 2655732E PT 118023761 T PT118023761 T PT 118023761T PT 11802376 T PT11802376 T PT 11802376T PT 2655732 E PT2655732 E PT 2655732E
Authority
PT
Portugal
Prior art keywords
pulp
chlorine dioxide
dioxide bleaching
improving chlorine
improving
Prior art date
Application number
PT118023761T
Other languages
English (en)
Original Assignee
Akzo Nobel Chemicals Int Bv
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 Akzo Nobel Chemicals Int Bv filed Critical Akzo Nobel Chemicals Int Bv
Publication of PT2655732E publication Critical patent/PT2655732E/pt

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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
    • 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
PT118023761T 2010-12-22 2011-12-19 Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel PT2655732E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201061426179P 2010-12-22 2010-12-22

Publications (1)

Publication Number Publication Date
PT2655732E true PT2655732E (pt) 2015-02-09

Family

ID=45420634

Family Applications (1)

Application Number Title Priority Date Filing Date
PT118023761T PT2655732E (pt) 2010-12-22 2011-12-19 Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel

Country Status (7)

Country Link
US (1) US9057156B2 (pt)
EP (1) EP2655732B1 (pt)
CA (1) CA2821954C (pt)
CL (1) CL2013001799A1 (pt)
PT (1) PT2655732E (pt)
UY (1) UY33838A (pt)
WO (1) WO2012084842A1 (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012084842A1 (en) * 2010-12-22 2012-06-28 Akzo Nobel Chemicals International B.V. Process for improving chlorine dioxide bleaching of pulp

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3020197A (en) * 1960-08-05 1962-02-06 Allied Chem Method for production of high brightness high strength wood pulps
USRE28884E (en) 1965-06-28 1976-06-29 Hooker Chemicals & Plastics Corporation Woodpulp bleaching process
US3802958A (en) * 1968-11-07 1974-04-09 Mo Och Domsjoe Ab Chlorination of cellulose pulp
USRE28887E (en) 1968-12-26 1976-06-29 Hooker Chemicals & Plastics Corporation Sequential bleaching of kraft pulp with chlorine dioxide followed by chlorine
JPS5318602B2 (pt) * 1973-07-20 1978-06-16
US4013506A (en) 1974-07-22 1977-03-22 Canadian International Paper Company Method and apparatus for automatically and simultaneously controlling solution viscosity and brightness of a pulp during multi-stage bleaching
US4238281A (en) 1979-04-30 1980-12-09 Canadian International Paper Company Simplified bleaching process
US4657633A (en) 1985-05-24 1987-04-14 Westvaco Corporation Delignification and bleaching of a cellulose pulp with an alkalioxygen-hypochlorite single stage sequential extraction
US4740212A (en) * 1985-11-25 1988-04-26 Quantum Technologies, Inc. Process and composition for bleaching cellulosic material with hypochlorous acid
EP0279845A4 (en) 1986-08-28 1991-01-09 James River-Norwalk, Inc. Pulp bleaching process
DE3923728A1 (de) * 1989-07-18 1991-01-24 Degussa Verfahren zur stabilisierung der viskositaet von zellstoffen
US5268075A (en) * 1989-10-19 1993-12-07 North Carolina State University High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
EP0496827A1 (en) 1989-10-19 1992-08-05 North Carolina State University Chlorine dioxide pulp bleaching process using sequential chlorine addition
DE4129739A1 (de) 1990-09-11 1992-03-12 Sandoz Ag Chlorfreies bleichen von papierpulpe
US5792316A (en) * 1992-02-28 1998-08-11 International Paper Company Bleaching process for kraft pulp employing high consistency chlorinated pulp treated with gaseous chlorine and ozone
JP2000220088A (ja) * 1999-01-26 2000-08-08 Nippon Paper Industries Co Ltd パルプの漂白方法
FI20000806A (fi) * 2000-04-05 2001-10-06 Aga Ab Menetelmä lignoselluloosamassan valkaisemiseksi
US20050045291A1 (en) * 2002-08-08 2005-03-03 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
US8317975B2 (en) 2004-04-20 2012-11-27 The Research Foundation Of The State University Of New York Product and processes from an integrated forest biorefinery
US20060006361A1 (en) * 2004-07-08 2006-01-12 Joseph Callerame Clathrate of chlorine dioxide
PL2840182T3 (pl) 2005-05-02 2020-01-31 International Paper Company Materiały lignocelulozowe i produkty z nich wykonane
FI122237B (fi) * 2007-06-15 2011-10-31 Andritz Oy Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
WO2012084842A1 (en) * 2010-12-22 2012-06-28 Akzo Nobel Chemicals International B.V. Process for improving chlorine dioxide bleaching of pulp

Also Published As

Publication number Publication date
WO2012084842A1 (en) 2012-06-28
US9057156B2 (en) 2015-06-16
UY33838A (es) 2012-06-29
EP2655732B1 (en) 2014-12-03
CL2013001799A1 (es) 2014-06-27
CA2821954A1 (en) 2012-06-28
CA2821954C (en) 2019-02-26
US20130269891A1 (en) 2013-10-17
EP2655732A1 (en) 2013-10-30

Similar Documents

Publication Publication Date Title
PL2597968T3 (pl) Sposób modyfikowania właściwości błonnika cytrusowego
PL2319984T3 (pl) Sposób wytwarzania papieru
ZA201403363B (en) Improved method for the treatment of water with chlorine dioxide
PL2632930T3 (pl) Sposób pozyskiwania ligniny
IL219005A (en) Process for producing calcium carbonate
LT2345760T (lt) Celiuliozės delignifikacijos ir balinimo būdas
EP2707205A4 (en) IMPROVED DRAINAGE MACHINE AND METHOD THEREFOR
PT2526047T (pt) Processo para a produção de dióxido de cloro
IL220557A (en) A method of wastewater treatment using chlorine dioxide
EP2623580A4 (en) PROCESS FOR PRODUCING BETA-SIALON
ZA201107418B (en) Method for the production of hydrogen peroxide
EG27079A (en) Process for the production of chlorine dioxide
ZA201209254B (en) Bleaching of pulp
EP2247782A4 (en) METHOD FOR FIBROUSAL COMPENSATION
PL2834407T3 (pl) Sposób bielenia masy celulozowej
ZA201202475B (en) Process for production of chlorine dioxide
ZA201108619B (en) Process for the production of chlorine dioxide
EP2791417A4 (en) PROCESS FOR DEACIDIFYING CELLULOSE MATERIALS
PT2334594T (pt) Processo para a produção de dióxido de cloro
PL2558201T3 (pl) Wybielanie substratów
EP2423187A4 (en) PROCESS FOR PRODUCING N-ALCOXYCARBONYL-tert-LEUCINS
PT2655732E (pt) Processo para melhorar o branqueamento com dióxido de cloro da pasta de papel
PL2493810T3 (pl) Sposób wytwarzania dwutlenku chloru
EP2527349A4 (en) PROCESS FOR THE PRODUCTION OF A TRIALKYLPHOSPHINE
EP2603531A4 (en) CHLORINE DIOXIDE TREATMENT OF CHARGE FROM BIOMASS