GB1312375A - Stripping of coated titanium electrodes for re-coating - Google Patents

Stripping of coated titanium electrodes for re-coating

Info

Publication number
GB1312375A
GB1312375A GB3104870A GB1312375DA GB1312375A GB 1312375 A GB1312375 A GB 1312375A GB 3104870 A GB3104870 A GB 3104870A GB 1312375D A GB1312375D A GB 1312375DA GB 1312375 A GB1312375 A GB 1312375A
Authority
GB
United Kingdom
Prior art keywords
coating
bath
electrode
stripping
water
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
GB3104870A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB1312375A publication Critical patent/GB1312375A/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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/28—Cleaning or pickling metallic material with solutions or molten salts with molten salts
    • C23G1/32—Heavy metals
    • 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
    • C25B15/00—Operating or servicing cells

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Electrodes For Compound Or Non-Metal Manufacture (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

1312375 Cleaning metals in fused baths IMPERIAL CHEMICAL INDUSTRIES Ltd 14 May 1971 [26 June 1970] 31048/70 Heading C7E A coating of platinum group metal oxide is stripped from a titianium base, prior to recoating for use as an electrode, by immersing in a bath of molten alkali metal hydroxide containing at least 0À1 % by weight of alkali metal hydride and then washing in water. The electrode may be subsequently immersed in a hot diluted mineral acid, e.g. H 2 SO 4 , and then rinsed in water. The hydride may be formed in the bath by reactron between the metal and hydrogen or cracked ammonia. The oxide coating may include oxides of Ti, Zr, Nb, Ta, W, Sn, Ge and Sb.
GB3104870A 1970-06-26 1970-06-26 Stripping of coated titanium electrodes for re-coating Expired GB1312375A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3104870 1970-06-26

Publications (1)

Publication Number Publication Date
GB1312375A true GB1312375A (en) 1973-04-04

Family

ID=10317183

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3104870A Expired GB1312375A (en) 1970-06-26 1970-06-26 Stripping of coated titanium electrodes for re-coating

Country Status (10)

Country Link
US (1) US3706600A (en)
JP (1) JPS5529153B1 (en)
BE (1) BE769041A (en)
CA (1) CA919560A (en)
FR (1) FR2099942A5 (en)
GB (1) GB1312375A (en)
IL (1) IL37073A (en)
MY (1) MY7400198A (en)
SU (1) SU490279A3 (en)
ZA (1) ZA714129B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434622A1 (en) * 1989-12-19 1991-06-26 Eltech Systems Corporation Molten salt stripping of electrode coatings
DE102007037246B4 (en) 2006-08-10 2018-05-17 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) METHOD FOR RECYCLING A COATED BIPOLAR PLATE OF STAINLESS STEEL

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4132569A (en) * 1977-10-25 1979-01-02 Diamond Shamrock Corporation Ruthenium recovery process
US4246083A (en) * 1978-08-31 1981-01-20 Johnson, Matthey & Co., Limited Removal of surface material
DE3032480C2 (en) * 1980-08-28 1983-10-13 C. Conradty Nürnberg GmbH & Co KG, 8505 Röthenbach Process for removing electrocatalytically effective protective coatings from electrodes with a metal core and application of the process
US4339281A (en) * 1981-08-20 1982-07-13 Rca Corporation Shank diamond cleaning
US5314601A (en) * 1989-06-30 1994-05-24 Eltech Systems Corporation Electrodes of improved service life
US5366598A (en) * 1989-06-30 1994-11-22 Eltech Systems Corporation Method of using a metal substrate of improved surface morphology
US5324407A (en) * 1989-06-30 1994-06-28 Eltech Systems Corporation Substrate of improved plasma sprayed surface morphology and its use as an electrode in an electrolytic cell

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2891881A (en) * 1957-01-02 1959-06-23 Albert L Jaffe Recovery of metals
DE1546112C3 (en) * 1965-05-12 1973-11-22 Dynamit Nobel Ag, 5210 Troisdorf Process for reducing the hydride losses in hydride-containing melts
US3502503A (en) * 1967-05-10 1970-03-24 Reactive Metals Inc Descaling of titanium and alloys thereof
GB1214579A (en) * 1968-02-28 1970-12-02 Chemner Ag Improvements in or relating to the re-constitution of electrodes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0434622A1 (en) * 1989-12-19 1991-06-26 Eltech Systems Corporation Molten salt stripping of electrode coatings
DE102007037246B4 (en) 2006-08-10 2018-05-17 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) METHOD FOR RECYCLING A COATED BIPOLAR PLATE OF STAINLESS STEEL

Also Published As

Publication number Publication date
CA919560A (en) 1973-01-23
JPS5529153B1 (en) 1980-08-01
ZA714129B (en) 1973-02-28
MY7400198A (en) 1974-12-31
IL37073A0 (en) 1971-08-25
IL37073A (en) 1974-07-31
SU490279A3 (en) 1975-10-30
BE769041A (en) 1971-12-27
FR2099942A5 (en) 1972-03-17
US3706600A (en) 1972-12-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years