AR080852A1 - 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
AR080852A1
AR080852A1 ARP100103016A ARP100103016A AR080852A1 AR 080852 A1 AR080852 A1 AR 080852A1 AR P100103016 A ARP100103016 A AR P100103016A AR P100103016 A ARP100103016 A AR P100103016A AR 080852 A1 AR080852 A1 AR 080852A1
Authority
AR
Argentina
Prior art keywords
sodium
sodium hydroxide
fiber pulp
pulp production
flow
Prior art date
Application number
ARP100103016A
Other languages
Spanish (es)
Inventor
Maija Pitkanen
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 AR080852A1 publication Critical patent/AR080852A1/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)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

Un método para producir hidroxido de sodio del caudal de agua con residuos del proceso de produccion de pulpa de fibra, caudal que comprende residuos orgánicos y sodio ligado al mismo. De acuerdo con el presente método, el caudal de agua de residuos se concentra y luego se incinera bajo condiciones de oxidizacion, con el fin de romper el residuo orgánico y los compuestos de sodio. De acuerdo con la presente solicitud, el borato o un compuesto que forma el borato, se agrega al caudal del agua de residuos, después de lo cual los compuestos de sodio se llevan a una reaccion de autocaustificacion. La reaccion se realiza a una temperatura que es lo suficientemente elevada como para evaporar el sodio y el sodio está principalmente en forma de oxido. La conversion, por lo menos parcial, del carbonato de sodio en hidroxido de sodio, de acuerdo con la presente solicitud, mejora el uso del álcali que se recupera por ejemplo, utilizando el proceso AIrec, que, a su vez, disminuye los costos de los químicos y reduce el consumo de energía necesario para la desfibracion de las astillas de madera, que es posterior a la absorcion.A method for producing sodium hydroxide from the water flow with waste from the fiber pulp production process, flow comprising organic waste and sodium linked thereto. In accordance with the present method, the waste water flow is concentrated and then incinerated under oxidization conditions, in order to break the organic waste and the sodium compounds. According to the present application, the borate or a compound that forms the borate is added to the wastewater flow, after which the sodium compounds are brought to a self-heating reaction. The reaction is carried out at a temperature that is high enough to evaporate the sodium and the sodium is mainly in the form of oxide. The conversion, at least partially, of sodium carbonate into sodium hydroxide, in accordance with the present application, improves the use of alkali which is recovered, for example, using the AIrec process, which, in turn, reduces the costs of the chemicals and reduces the energy consumption necessary for the defibration of wood chips, which is subsequent to absorption.

ARP100103016A 2009-08-18 2010-08-18 METHOD FOR PRODUCING SODIUM HYDROXIDE OF FIBER PULP PRODUCTION WASTE FLOW AR080852A1 (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
AR080852A1 true AR080852A1 (en) 2012-05-16

Family

ID=41050679

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP100103016A AR080852A1 (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 (2)

* 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

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
FI20095851A (en) 2011-02-23
SE536944C2 (en) 2014-11-11
RU2550177C2 (en) 2015-05-10
RU2012102318A (en) 2013-09-27
BR112012003755A2 (en) 2016-04-12
SE1250098A1 (en) 2012-02-09
CA2767903C (en) 2019-05-14
FI124685B (en) 2014-12-15
WO2011020949A1 (en) 2011-02-24
FI20095851A0 (en) 2009-08-18
UY32847A (en) 2011-06-30
CA2767903A1 (en) 2011-02-24
CN102625778A (en) 2012-08-01
CN102625778B (en) 2015-05-20
BR112012003755B1 (en) 2019-05-28

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