CA2767903C - Methode de production d'hydroxyde de sodium a partir d'un effluent de production de pulpe fibreuse - Google Patents

Methode de production d'hydroxyde de sodium a partir d'un effluent de production de pulpe fibreuse Download PDF

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Publication number
CA2767903C
CA2767903C CA2767903A CA2767903A CA2767903C CA 2767903 C CA2767903 C CA 2767903C CA 2767903 A CA2767903 A CA 2767903A CA 2767903 A CA2767903 A CA 2767903A CA 2767903 C CA2767903 C CA 2767903C
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CA
Canada
Prior art keywords
sodium
effluent
effluent stream
borate
stream
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CA2767903A
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English (en)
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CA2767903A1 (fr
Inventor
Maija Pitkanen
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Metsa Board Oyj
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M Real Oyj
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Publication date
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Publication of CA2767903A1 publication Critical patent/CA2767903A1/fr
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • 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
    • 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
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • 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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
    • 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
    • D21C11/12—Combustion of pulp liquors
    • 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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/122—Treatment, e.g. dissolution, of the smelt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)

Abstract

La présente invention concerne un procédé de production d'hydroxyde de sodium à partir du flux d'eaux résiduaires du processus de production de pâte fibreuse, ledit flux comprenant un déchet organique auquel est lié du sodium. Selon le procédé de la présente invention, le flux d'eaux résiduaires est concentré puis brûlé dans des conditions oxydantes afin de décomposer le déchet organique et les composés sodium. Selon la présente invention, du borate ou un composé qui forme du borate, est ajouté au flux d'eaux résiduaires, après quoi les composés sodium sont portés à une réaction d'auto-caustification. La réaction s'effectue à une température qui est suffisamment élevée pour évaporer le sodium, et le sodium est principalement sous forme d'oxyde. La conversion, au moins partielle, du carbonate de sodium en hydroxyde de sodium, selon la présente invention, améliore l'aptitude à l'emploi de l'alkali récupéré, par exemple, à l'aide du procédé Alrec qui, à son tour, fait baisser les coûts des produits chimiques et réduit la consommation d'énergie nécessaire au défibrage des copeaux, suite à l'imprégnation.
CA2767903A 2009-08-18 2010-08-18 Methode de production d'hydroxyde de sodium a partir d'un effluent de production de pulpe fibreuse Active CA2767903C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20095851A FI124685B (fi) 2009-08-18 2009-08-18 Menetelmä natriumhydroksidin tuottamiseksi kuitumassan valmistuksen jätevirrasta
FI20095851 2009-08-18
PCT/FI2010/050654 WO2011020949A1 (fr) 2009-08-18 2010-08-18 Procédé de production d'hydroxyde de sodium à partir d'un effluent de la production de pâte fibreuse

Publications (2)

Publication Number Publication Date
CA2767903A1 CA2767903A1 (fr) 2011-02-24
CA2767903C true CA2767903C (fr) 2019-05-14

Family

ID=41050679

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2767903A Active CA2767903C (fr) 2009-08-18 2010-08-18 Methode de production d'hydroxyde de sodium a partir d'un effluent de production de pulpe fibreuse

Country Status (9)

Country Link
CN (1) CN102625778B (fr)
AR (1) AR080852A1 (fr)
BR (1) BR112012003755B1 (fr)
CA (1) CA2767903C (fr)
FI (1) FI124685B (fr)
RU (1) RU2550177C2 (fr)
SE (1) SE536944C2 (fr)
UY (1) UY32847A (fr)
WO (1) WO2011020949A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI126767B (en) * 2012-11-16 2017-05-15 Andritz Oy Method for extracting the ash from a recovery boiler
CN103494810A (zh) * 2013-09-25 2014-01-08 青岛市市立医院 治疗网络成瘾的药物组合物
WO2020220117A1 (fr) * 2019-04-29 2020-11-05 Fpinnovations Procédé de récupération d'alcali à partir d'un matériau contenant un oxyde/hydroxyde métallique

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI53141C (fr) 1975-09-02 1978-02-10 Keskuslaboratorio
SU1624082A1 (ru) * 1989-01-12 1991-01-30 Ленинградская лесотехническая академия им.С.М.Кирова Способ регенерации отработанного щелока от сульфатной варки целлюлозы
US6348128B1 (en) 1998-06-01 2002-02-19 U.S. Borax Inc. Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition
US6294048B1 (en) 1998-06-01 2001-09-25 U.S. Borax Inc. Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
SE0202711D0 (sv) * 2002-09-12 2002-09-12 Kiram Ab Alkaline process for the manufacturing of pulp using alkali metaborate as buffering alkali
US20050076568A1 (en) * 2003-10-09 2005-04-14 Stigsson Lars Lennart Partial oxidation of cellulose spent pulping liquor
FI120548B (fi) 2004-01-14 2009-11-30 Rinheat Oy Menetelmä alkaliyhdisteitä sisältävän orgaanisen jätekonsentraatin polttamiseksi hapettavissa olosuhteissa
US20050155730A1 (en) 2004-01-20 2005-07-21 Stigsson Lars L. Method for the production of high yield chemical pulp from softwood

Also Published As

Publication number Publication date
CN102625778B (zh) 2015-05-20
RU2012102318A (ru) 2013-09-27
AR080852A1 (es) 2012-05-16
BR112012003755A2 (pt) 2016-04-12
UY32847A (es) 2011-06-30
FI20095851L (fi) 2011-02-23
WO2011020949A1 (fr) 2011-02-24
FI124685B (fi) 2014-12-15
FI20095851A0 (fi) 2009-08-18
BR112012003755B1 (pt) 2019-05-28
RU2550177C2 (ru) 2015-05-10
CN102625778A (zh) 2012-08-01
SE536944C2 (sv) 2014-11-11
CA2767903A1 (fr) 2011-02-24
SE1250098A1 (sv) 2012-02-09

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