CA1026711A - Reduction of crevice corrosion in bipolar chlorine diaphragm cells by locating the cathode screen at the crevice and maintaining the titanium within the crevice anodic - Google Patents

Reduction of crevice corrosion in bipolar chlorine diaphragm cells by locating the cathode screen at the crevice and maintaining the titanium within the crevice anodic

Info

Publication number
CA1026711A
CA1026711A CA203,182A CA203182A CA1026711A CA 1026711 A CA1026711 A CA 1026711A CA 203182 A CA203182 A CA 203182A CA 1026711 A CA1026711 A CA 1026711A
Authority
CA
Canada
Prior art keywords
crevice
anodic
bipolar
locating
titanium
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA203,182A
Other languages
French (fr)
Other versions
CA203182S (en
Inventor
William B. Darlington
Hugh Cunningham
Carl W. Raetzsch (Jr.)
Donald W. Du Bois
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PPG Industries Inc
Original Assignee
PPG Industries Inc
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 PPG Industries Inc filed Critical PPG Industries Inc
Application granted granted Critical
Publication of CA1026711A publication Critical patent/CA1026711A/en
Expired legal-status Critical Current

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
    • C25B1/34—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
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70—Assemblies comprising two or more cells
    • 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
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

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)
CA203,182A 1973-07-20 1974-06-24 Reduction of crevice corrosion in bipolar chlorine diaphragm cells by locating the cathode screen at the crevice and maintaining the titanium within the crevice anodic Expired CA1026711A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US381114A US3876517A (en) 1973-07-20 1973-07-20 Reduction of crevice corrosion in bipolar chlorine diaphragm cells by locating the cathode screen at the crevice and maintaining the titanium within the crevice anodic

Publications (1)

Publication Number Publication Date
CA1026711A true CA1026711A (en) 1978-02-21

Family

ID=23503724

Family Applications (1)

Application Number Title Priority Date Filing Date
CA203,182A Expired CA1026711A (en) 1973-07-20 1974-06-24 Reduction of crevice corrosion in bipolar chlorine diaphragm cells by locating the cathode screen at the crevice and maintaining the titanium within the crevice anodic

Country Status (9)

Country Link
US (1) US3876517A (en)
JP (1) JPS5044179A (en)
BE (1) BE817867A (en)
CA (1) CA1026711A (en)
DE (1) DE2434353C3 (en)
FR (1) FR2237982B1 (en)
GB (1) GB1445903A (en)
IT (1) IT1016641B (en)
NO (1) NO139094C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111779A (en) * 1974-10-09 1978-09-05 Asahi Kasei Kogyo Kabushiki Kaisha Bipolar system electrolytic cell
US4033848A (en) * 1975-10-15 1977-07-05 Diamond Shamrock Corporation Wafer electrode for an electrolytic cell
US4057473A (en) * 1976-03-15 1977-11-08 Ppg Industries, Inc. Method of reducing cell liquor header corrosion
FR2367125A1 (en) * 1976-10-11 1978-05-05 Solvay Bipolar electrolysis cell - with chamber suspended from a supporting beam to avoid corrosion problems
DE2816152C2 (en) * 1978-04-14 1980-07-03 Bayer Ag, 5090 Leverkusen Process for the production of chlorine from hydrochloric acid by electrolysis and hydrochloric acid electrolysis cell
US4285787A (en) * 1980-03-20 1981-08-25 Pulp And Paper Research Institute Of Canada Electrochemical corrosion protection of stainless steel bleach plant washers
US4448663A (en) * 1982-07-06 1984-05-15 The Dow Chemical Company Double L-shaped electrode for brine electrolysis cell
WO1997012078A1 (en) * 1995-09-25 1997-04-03 Rmg Services Pty. Ltd. Electrochemical system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA625003A (en) * 1957-07-17 1961-08-01 B. Cotton Joseph Electrodes and uses thereof
BE569804A (en) * 1957-07-26
ZA703723B (en) * 1969-06-24 1972-01-26 Ppg Industries Inc Diaphragm cell
US3755108A (en) * 1971-08-12 1973-08-28 Ppg Industries Inc Method of producing uniform anolyte heads in the individual cells of a bipolar electrolyzer

Also Published As

Publication number Publication date
JPS5044179A (en) 1975-04-21
IT1016641B (en) 1977-06-20
BE817867A (en) 1975-01-20
AU7057174A (en) 1976-01-08
NO742613L (en) 1975-02-17
GB1445903A (en) 1976-08-11
FR2237982A1 (en) 1975-02-14
DE2434353C3 (en) 1984-10-11
NO139094C (en) 1979-01-10
NO139094B (en) 1978-09-25
FR2237982B1 (en) 1977-03-18
US3876517A (en) 1975-04-08
DE2434353B2 (en) 1977-09-01
DE2434353A1 (en) 1975-02-13

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