RO83322B - Procedeu pentru obtinerea clorului si hidroxidului de sodiu prin electroliza clorurii de sodiu - Google Patents

Procedeu pentru obtinerea clorului si hidroxidului de sodiu prin electroliza clorurii de sodiu

Info

Publication number
RO83322B
RO83322B RO95848A RO9584878A RO83322B RO 83322 B RO83322 B RO 83322B RO 95848 A RO95848 A RO 95848A RO 9584878 A RO9584878 A RO 9584878A RO 83322 B RO83322 B RO 83322B
Authority
RO
Romania
Prior art keywords
membrane
electrode
electrolysis
natrium
ppm
Prior art date
Application number
RO95848A
Other languages
English (en)
Other versions
RO83322A (ro
Inventor
Thomas George Coker
Anthony Basil Laconti
Anthony Robert Fragala
Russell Mason Dempsey
Original Assignee
General Electric Co
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
Priority claimed from US05/922,316 external-priority patent/US4224121A/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of RO83322A publication Critical patent/RO83322A/ro
Publication of RO83322B publication Critical patent/RO83322B/ro

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
    • 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
    • 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
    • C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
    • C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
    • C25B11/091—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds
    • C25B11/095—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of at least one catalytic element and at least one catalytic compound; consisting of two or more catalytic elements or catalytic compounds at least one of the compounds being organic
    • 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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C25B9/23—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)

Abstract

Inventia se refera la un procedeu pentru obtinerea clorului si hidroxidului de sodiu prin electroliza clorurii de sodiu într-o celula electrolitica, prevazuta cu o membrana dintr-un polimer schimbator de cation, cel putin unul dintre electrozi fiind fixat de membrana într-o pluralitate de puncte. Procedeul consta în electroliza unei saramuri concentrate, continînd 300g/l ClNa, cu o puritate de cel putin 2 ppm, de preferinta 0,5 ppm, continut total de ioni Ca++, Mg++, acidulata cu acid clorhidric 0,25 M într-o celula în care cel putin unul din electrozi este în contact direct cu membrana în care este înglobat, astfel ca reactia electrolitica are loc direct la interfata electrod/membrana, potentialul aplicîndu-se electrodului legat de membrana prin intermediul unui colector de curent conductor de electroni a carui suprafata este presata pe electrod, dar a carui structura este separata de acesta, suprafata colectorului de curent avînd o supratensiune pentru hidrogen sau clor mai mare decît aceea a electrodului, electroliza avînd loc la densitati de curent cuprinse între 21,5 si 43 în baza 2A/dm2, de preferinta 32,5 A/dm2, sub o tensiune de curent cuprinsa între 2,9 si 3,6 V, la temperaturi de la 35 pîna la 90 degree C, eficienta curentului catodic fiind de 88 pîna la 92%.
RO95848A 1977-12-09 1978-12-09 Procedeu pentru obtinerea clorului si hidroxidului de sodiu prin electroliza clorurii de sodiu RO83322B (ro)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85895977A 1977-12-09 1977-12-09
US89250078A 1978-04-03 1978-04-03
US05/922,316 US4224121A (en) 1978-07-06 1978-07-06 Production of halogens by electrolysis of alkali metal halides in an electrolysis cell having catalytic electrodes bonded to the surface of a solid polymer electrolyte membrane

Publications (2)

Publication Number Publication Date
RO83322A RO83322A (ro) 1984-06-21
RO83322B true RO83322B (ro) 1984-08-30

Family

ID=27420400

Family Applications (1)

Application Number Title Priority Date Filing Date
RO95848A RO83322B (ro) 1977-12-09 1978-12-09 Procedeu pentru obtinerea clorului si hidroxidului de sodiu prin electroliza clorurii de sodiu

Country Status (12)

Country Link
JP (1) JPS54112398A (ro)
CH (1) CH650031A5 (ro)
DD (1) DD140262A5 (ro)
DE (1) DE2844496C2 (ro)
ES (1) ES475850A1 (ro)
FR (1) FR2411249A1 (ro)
GB (1) GB2009795B (ro)
IT (1) IT1101513B (ro)
MX (1) MX151431A (ro)
NL (1) NL186261C (ro)
RO (1) RO83322B (ro)
SE (1) SE453602B (ro)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS551351B2 (ro) * 1974-03-07 1980-01-12
US4209368A (en) * 1978-08-07 1980-06-24 General Electric Company Production of halogens by electrolysis of alkali metal halides in a cell having catalytic electrodes bonded to the surface of a porous membrane/separator
JPS55148777A (en) * 1979-05-04 1980-11-19 Asahi Glass Co Ltd Manufacture of caustic alkali
JPS55161081A (en) * 1979-06-01 1980-12-15 Asahi Glass Co Ltd Electrolytic cell
GB2051870B (en) * 1979-06-07 1983-04-20 Asahi Chemical Ind Method for electrolysis of aqueous alkali metal chloride solution
JPS5620178A (en) * 1979-07-30 1981-02-25 Asahi Glass Co Ltd Closely sticking method for ion exchange membrane and electrode
JPS5827352B2 (ja) * 1979-08-31 1983-06-08 旭硝子株式会社 電極層付着イオン交換膜の製造法
JPS5655577A (en) * 1979-10-06 1981-05-16 Toyo Soda Mfg Co Ltd Electrolyzing method for alkali metal halide
US4342629A (en) * 1979-11-08 1982-08-03 Ppg Industries, Inc. Solid polymer electrolyte chlor-alkali process
US4315805A (en) * 1979-11-08 1982-02-16 Ppg Industries, Inc. Solid polymer electrolyte chlor-alkali process
JPS56156783A (en) * 1980-05-06 1981-12-03 Asahi Glass Co Ltd Electrolytic cell for aqueous alkali chloride solution
JPS56112490A (en) * 1980-02-11 1981-09-04 Ppg Industries Inc Solid polymer electrolyte chlorine alkali process and electrolytic cell
US4293394A (en) * 1980-03-31 1981-10-06 Ppg Industries, Inc. Electrolytically producing chlorine using a solid polymer electrolyte-cathode unit
JPS57500514A (ro) * 1980-05-02 1982-03-25
US4289591A (en) * 1980-05-02 1981-09-15 General Electric Company Oxygen evolution with improved Mn stabilized catalyst
DE3036066A1 (de) * 1980-09-25 1982-05-06 Hoechst Ag, 6000 Frankfurt Verfahren zur herstellung eines elektroden-membran-verbundsystems
US4421579A (en) * 1981-06-26 1983-12-20 Diamond Shamrock Corporation Method of making solid polymer electrolytes and electrode bonded with hydrophyllic fluorocopolymers
US4434116A (en) 1981-06-26 1984-02-28 Diamond Shamrock Corporation Method for making a porous fluorinated polymer structure
US4465533A (en) * 1983-01-13 1984-08-14 Eltech Systems Limited Method for making polymer bonded electrodes
DE3672975D1 (de) * 1985-12-09 1990-08-30 Dow Chemical Co Festkoerperpolymerelektrolyt-elektrode.

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134697A (en) * 1959-11-03 1964-05-26 Gen Electric Fuel cell
GB1004124A (en) * 1961-09-25 1965-09-08 Gen Electric Fuel cell
DE1546717C3 (de) * 1964-05-14 1974-06-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrochemische Zelle
US3470019A (en) * 1965-02-04 1969-09-30 Matthey Bishop Inc Platinum coating composition,process and platinum-coated materials
NL6705604A (ro) * 1967-04-21 1968-10-22
BE788557A (fr) * 1971-09-09 1973-03-08 Ppg Industries Inc Diaphragmes pour cellules electrolytiques
US4100050A (en) * 1973-11-29 1978-07-11 Hooker Chemicals & Plastics Corp. Coating metal anodes to decrease consumption rates
JPS526374A (en) * 1975-07-07 1977-01-18 Tokuyama Soda Co Ltd Anode structure for electrolysis
US4039409A (en) * 1975-12-04 1977-08-02 General Electric Company Method for gas generation utilizing platinum metal electrocatalyst containing 5 to 60% ruthenium
CA1087546A (en) * 1976-02-05 1980-10-14 Robert B. Macmullin Low voltage chlor-alkali ion exchange process for the production of chlorine
DE2741956A1 (de) * 1976-09-20 1978-03-23 Gen Electric Elektrolyse von natriumsulfat unter verwendung einer ionenaustauschermembranzelle mit festelektrolyt
DE2802257C2 (de) * 1977-01-21 1986-01-02 Studiecentrum voor Kernenergie, S.C.K., Brüssel/Bruxelles Membran für eine elektrochemische Zelle und ihre Verwendung in einer Elektrolysevorrichtung
IT1077612B (it) * 1977-02-07 1985-05-04 Nora Oronzo Impianti Elettroch Setto bipolare conduttore per celle elettrochimiche e metodo di preparazione

Also Published As

Publication number Publication date
DD140262A5 (de) 1980-02-20
JPS54112398A (en) 1979-09-03
CH650031A5 (de) 1985-06-28
FR2411249A1 (fr) 1979-07-06
SE7812640L (sv) 1979-08-02
NL7811997A (nl) 1979-06-12
SE453602B (sv) 1988-02-15
ES475850A1 (es) 1980-01-16
FR2411249B1 (ro) 1983-01-07
GB2009795B (en) 1982-08-04
DE2844496C2 (de) 1982-12-30
NL186261B (nl) 1990-05-16
IT7830451A0 (it) 1978-12-01
NL186261C (nl) 1990-10-16
GB2009795A (en) 1979-06-20
RO83322A (ro) 1984-06-21
DE2844496A1 (de) 1979-06-13
MX151431A (es) 1984-11-21
JPS616156B2 (ro) 1986-02-24
IT1101513B (it) 1985-09-28

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