UY32847A - METHOD FOR PRODUCING SODIUM HYDROXIDE OF FIBER PULP PRODUCTION WASTE FLOW - Google Patents

METHOD FOR PRODUCING SODIUM HYDROXIDE OF FIBER PULP PRODUCTION WASTE FLOW

Info

Publication number
UY32847A
UY32847A UY0001032847A UY32847A UY32847A UY 32847 A UY32847 A UY 32847A UY 0001032847 A UY0001032847 A UY 0001032847A UY 32847 A UY32847 A UY 32847A UY 32847 A UY32847 A UY 32847A
Authority
UY
Uruguay
Prior art keywords
fiber pulp
pulp production
sodium hydroxide
production waste
producing sodium
Prior art date
Application number
UY0001032847A
Other languages
Spanish (es)
Inventor
Pitkaenen Maija
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
Publication of UY32847A publication Critical patent/UY32847A/en

Links

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)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

Método para producir NaOH a partir del agua residual del proceso de producción de pulpa de fibra. El agua residual se concentra y se incinera bajo condiciones de oxidazación, para separar el residuo orgánico de los compuestos de sodio. Se agrega borato o un compuesto que forma el borato y los compuestos de sodio obtenidos se autocaustifican, a temperatura suficiente para evaporar el sodio que está principalmente en forma de óxido. El proceso Alrec que recupera el álcali, contribuye a disminuir los costos y reducir el consumo de energía para la desfibración de las astillas de madera.Method to produce NaOH from the wastewater of the fiber pulp production process. The wastewater is concentrated and incinerated under oxidation conditions, to separate the organic residue from the sodium compounds. Borate or a compound that forms the borate is added and the sodium compounds obtained are self-heated, at a temperature sufficient to evaporate the sodium which is mainly in the form of oxide. The Alrec process that recovers the alkali helps reduce costs and reduce energy consumption for the defibration of wood chips.

UY0001032847A 2009-08-18 2010-08-18 METHOD FOR PRODUCING SODIUM HYDROXIDE OF FIBER PULP PRODUCTION WASTE FLOW UY32847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20095851A FI124685B (en) 2009-08-18 2009-08-18 A process for the production of sodium hydroxide from a waste stream for the production of pulp

Publications (1)

Publication Number Publication Date
UY32847A true UY32847A (en) 2011-06-30

Family

ID=41050679

Family Applications (1)

Application Number Title Priority Date Filing Date
UY0001032847A UY32847A (en) 2009-08-18 2010-08-18 METHOD FOR PRODUCING SODIUM HYDROXIDE OF FIBER PULP PRODUCTION WASTE FLOW

Country Status (9)

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

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 Procedure for leaching ash from collection boiler
CN103494810A (en) * 2013-09-25 2014-01-08 青岛市市立医院 Pharmaceutical composition for treating Internet addiction
EP3966165A4 (en) * 2019-04-29 2023-06-14 FPInnovations Process to recover alkali from a metal oxide/hydroxide containing material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI53141C (en) 1975-09-02 1978-02-10 Keskuslaboratorio
SU1624082A1 (en) * 1989-01-12 1991-01-30 Ленинградская лесотехническая академия им.С.М.Кирова Method of regenerating spent liquor of sulfate pulp digestion
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 (en) * 2002-09-12 2002-09-12 Kiram Ab Alkaline process for the manufacture 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 (en) * 2004-01-14 2009-11-30 Rinheat Oy Process for combustion of an organic waste concentrate under oxidizing conditions
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
SE536944C2 (en) 2014-11-11
FI20095851A (en) 2011-02-23
BR112012003755A2 (en) 2016-04-12
WO2011020949A1 (en) 2011-02-24
RU2550177C2 (en) 2015-05-10
RU2012102318A (en) 2013-09-27
CN102625778B (en) 2015-05-20
CA2767903A1 (en) 2011-02-24
CA2767903C (en) 2019-05-14
SE1250098A1 (en) 2012-02-09
FI124685B (en) 2014-12-15
CN102625778A (en) 2012-08-01
AR080852A1 (en) 2012-05-16
BR112012003755B1 (en) 2019-05-28
FI20095851A0 (en) 2009-08-18

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