BR0312387A - Process for the production of alkali metal chlorate - Google Patents

Process for the production of alkali metal chlorate

Info

Publication number
BR0312387A
BR0312387A BR0312387-1A BR0312387A BR0312387A BR 0312387 A BR0312387 A BR 0312387A BR 0312387 A BR0312387 A BR 0312387A BR 0312387 A BR0312387 A BR 0312387A
Authority
BR
Brazil
Prior art keywords
alkali metal
compartment
production
anode
chlorate
Prior art date
Application number
BR0312387-1A
Other languages
Portuguese (pt)
Other versions
BR0312387B1 (en
Inventor
Bo Haakansson
Eduardo Fontes
Fredrik Herlitz
Viktoria Lindstrand
Original Assignee
Akzo Nobel Nv
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 Nv filed Critical Akzo Nobel Nv
Publication of BR0312387A publication Critical patent/BR0312387A/en
Publication of BR0312387B1 publication Critical patent/BR0312387B1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/24—Halogens or compounds thereof
    • C25B1/26—Chlorine; Compounds thereof
    • C25B1/265—Chlorates
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
    • C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells

Abstract

"PROCESSO PARA A PRODUçãO DE CLORATO DE METAL ALCALINO". A presente invenção se refere a um processo para a produção de clorato de metal alcalino em uma célula eletrolítica (1) que está dividida por um separador seletivo de cátion (3) em um compartimento de anodo (2) no qual um anodo (2a) está disposto e um compartimento de catodo (5) no qual um eletrodo de difusão de gás (5a) está disposto. O referido processo para a produção de clorato de metal alcalino, em concordância com a presente invenção, está caracterizado pelo fato de que compreende a introdução de uma solução de eletrólito contendo cloreto de metal alcalino para o compartimento de anodo (2) e de um gás contendo oxigênio para o compartimento de catodo (5); eletrolisando a solução de eletrólito para produzir uma solução eletrolisada no compartimento de anodo (2); eletrolisando oxigênio introduzido para o compartimento de catodo (5) resultando na formação de hidróxido de metal alcalino no compartimento de catodo (5); transferindo a solução eletrolisada a partir do compartimento de anodo (2) para um reator de clorato (10, 11) para reagir a solução eletrolisada adicionalmente para produzir um eletrólito de clorato de metal alcalino concentrado. A presente invenção também se refere a uma célula eletrolítica (1) para a produção de clorato de metal alcalino. A referida célula eletrolítica (1) em concordância com a presente invenção, está caracterizada pelo fato de que compreende um separador seletivo de cátion (3) dividindo a célula eletrolítica (1) em um compartimento de anodo (2) no qual um anodo (2a) está disposto e um compartimento de catodo (5) no qual um eletrodo de difusão de gás (Sa) está disposto, uma entrada para solução de eletrólito e uma saída para solução eletrolisada estão proporcionadas no compartimento de anodo (2), e uma entrada para introdução de gás contendo oxigênio está proporcionada no compartimento de catodo (5), em que a referida célula eletrolítica (1) resiste a um fluxo de pelo menos cerca de 0,5 m^ 3^h^ -1^m^ -2^ através do compartimento de anodo (2), e uma entrada para introdução de gás contendo oxigênio está proporcionada na câmara de gás (6). A presente invenção igualmente também se refere a uma planta compreendendo a célula eletrolítica (1) e à utilização da mesma para a produção de clorato de metal alcalino e/ou de dióxido de cloro."PROCESS FOR THE PRODUCTION OF ALKALINE CHLORATE". The present invention relates to a process for the production of alkali metal chlorate in an electrolyte cell (1) which is divided by a selective cation separator (3) in an anode compartment (2) in which an anode (2a) is disposed and a cathode compartment (5) in which a gas diffusion electrode (5a) is disposed. Said process for the production of alkali metal chlorate, in accordance with the present invention, is characterized in that it comprises introducing an alkali metal chloride containing electrolyte solution into the anode compartment (2) and a gas containing oxygen to the cathode compartment (5); electrolyzing the electrolyte solution to produce an electrolyzed solution in the anode compartment (2); electrolyzing oxygen introduced into the cathode compartment (5) resulting in the formation of alkali metal hydroxide in the cathode compartment (5); transferring the electrolyzed solution from the anode compartment (2) to a chlorate reactor (10, 11) to further react the electrolyzed solution to produce a concentrated alkali metal chlorate electrolyte. The present invention also relates to an electrolyte cell (1) for the production of alkali metal chlorate. Said electrolytic cell (1) in accordance with the present invention, is characterized in that it comprises a selective cation separator (3) dividing the electrolytic cell (1) in an anode compartment (2) in which an anode (2a ) is disposed and a cathode compartment (5) in which a gas diffusion electrode (Sa) is disposed, an electrolyte solution inlet and an electrolyte solution outlet are provided in the anode compartment (2), and an inlet for introducing oxygen containing gas is provided in the cathode compartment (5), wherein said electrolytic cell (1) resists a flow of at least about 0.5 m ^ 3 ^ h ^ -1 ^ m ^ -2 through the anode compartment (2), and an inlet for introducing oxygen containing gas is provided in the gas chamber (6). The present invention also also relates to a plant comprising the electrolytic cell (1) and the use thereof for the production of alkali metal chlorate and / or chlorine dioxide.

BRPI0312387-1A 2002-07-05 2003-06-19 A process for producing alkali metal chlorate in an electrolytic cell and plant comprising an electrolytic cell. BR0312387B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02445094 2002-07-05
PCT/SE2003/001062 WO2004005583A1 (en) 2002-07-05 2003-06-19 Process for producing alkali metal chlorate

Publications (2)

Publication Number Publication Date
BR0312387A true BR0312387A (en) 2005-04-12
BR0312387B1 BR0312387B1 (en) 2013-05-14

Family

ID=30011331

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0312387-1A BR0312387B1 (en) 2002-07-05 2003-06-19 A process for producing alkali metal chlorate in an electrolytic cell and plant comprising an electrolytic cell.

Country Status (7)

Country Link
EP (1) EP1527209A1 (en)
CN (1) CN1665961A (en)
AU (1) AU2003239065B2 (en)
BR (1) BR0312387B1 (en)
CA (1) CA2490737A1 (en)
RU (1) RU2317351C2 (en)
WO (1) WO2004005583A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8034227B2 (en) 2005-06-30 2011-10-11 Akzo Nobel N.V. Chemical process
ITMI20061374A1 (en) * 2006-07-14 2008-01-15 Uhdenora Spa CHLORINE-SODA ELECTROLYZER EQUIPPED WITH OXYGEN DIFFUSION CATHODE
DE102009023539B4 (en) * 2009-05-30 2012-07-19 Bayer Materialscience Aktiengesellschaft Method and device for the electrolysis of an aqueous solution of hydrogen chloride or alkali chloride in an electrolytic cell
FR3025055B1 (en) * 2014-08-19 2016-08-26 Jomi Leman ELECTROCHEMICAL DEVICE FOR STORING ELECTRIC ENERGY AND HYDROGEN PRODUCTION, AND PROCESS FOR PRODUCING HYDROGEN
JP6635879B2 (en) * 2016-06-24 2020-01-29 東亞合成株式会社 Alkali hydroxide production apparatus and operation method of alkali hydroxide production apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL256163A (en) * 1959-09-28
US4269675A (en) * 1978-07-13 1981-05-26 The Dow Chemical Company Electrolyte series flow in electrolytic chlor-alkali cells
US4364805A (en) * 1981-05-08 1982-12-21 Diamond Shamrock Corporation Gas electrode operation
FR2691479B1 (en) * 1992-05-20 1994-08-19 Atochem Elf Sa Method of manufacturing alkali metal chlorate and device for its implementation.
CA2121628C (en) * 1993-04-26 2000-02-15 Johan Wanngard Process for the production of alkali metal chlorate
JP3553775B2 (en) * 1997-10-16 2004-08-11 ペルメレック電極株式会社 Electrolyzer using gas diffusion electrode
JP3437127B2 (en) * 1999-07-07 2003-08-18 東亞合成株式会社 Operating method of alkaline chloride electrolytic cell

Also Published As

Publication number Publication date
AU2003239065A1 (en) 2004-01-23
WO2004005583A1 (en) 2004-01-15
BR0312387B1 (en) 2013-05-14
AU2003239065B2 (en) 2009-01-08
EP1527209A1 (en) 2005-05-04
CA2490737A1 (en) 2004-01-15
RU2317351C2 (en) 2008-02-20
RU2005102827A (en) 2005-08-20
CN1665961A (en) 2005-09-07

Similar Documents

Publication Publication Date Title
CA2023733C (en) Chlorine dioxide generation from chloric acid
US5198080A (en) Electrochemical processing of aqueous solutions
NO922821L (en) ELECTROCHEMICAL PROCESS FOR THE PREPARATION OF CHLORIC ACID AND ALKALIMETAL CHLORATE MIXTURES
ES2041559T3 (en) PROCEDURE FOR THE ELECTROLYTIC PRODUCTION OF ALKALINE METAL CHLORATE AND AUXILIARY CHEMICALS.
NO310284B1 (en) Process for the preparation of chloride oxide
SE501204C2 (en) Preparation of polysulfide by electrolysis of white liquor containing sulfide
BRPI0414351A (en) process for aletrolysis of an aqueous solution of hydrogen chloride or alkali metal chloride
US4076603A (en) Caustic and chlorine production process
HK1015832A1 (en) Process for the combined electrochemical production of sodium peroxide disulphate and soda lye
AR246987A1 (en) Combined process for production of chlorine dioxide and sodium hydroxide
BR0312387A (en) Process for the production of alkali metal chlorate
US8216443B2 (en) Process for producing alkali metal chlorate
CA2121628A1 (en) Process for the Production of Alkali Metal Chlorate
US5851374A (en) Process for production of chlorine dioxide
US6159349A (en) Electrolytic cell for hydrogen peroxide production
CN101935847A (en) Method for removing trace iodine from salt water for producing sodium hydroxide by electrolysis method
EP0532535B1 (en) Electrochemical production of acid chlorate solutions
FR2768751B1 (en) ELECTROLYSIS OF A BRINE
US5284553A (en) Chlorine dioxide generation from chloric acid
CA2116427C (en) Acidity control in chlorine dioxide manufacture
MX9401113A (en) IMPROVED PROCESS AND CUBA FOR CHLORINE-ALCALI ELECTROLYSIS WITH DIAPHRAGM.
CA2018507C (en) Electrochemical processing of aqueous solutions
RU2146221C1 (en) Method of production of sodium dithionite
WO1993004979A1 (en) Acidity control in chlorine dioxide manufacture
JPS5831395B2 (en) Diaphragm type alkaline chloride electrolyzer

Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 19/06/2003, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved
B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 17A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2594 DE 24-09-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.