US2494425A - Electrolytically polished graphite anode - Google Patents

Electrolytically polished graphite anode Download PDF

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Publication number
US2494425A
US2494425A US681124A US68112446A US2494425A US 2494425 A US2494425 A US 2494425A US 681124 A US681124 A US 681124A US 68112446 A US68112446 A US 68112446A US 2494425 A US2494425 A US 2494425A
Authority
US
United States
Prior art keywords
graphite
anode
graphite anode
electrolytically polished
anodes
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 - Lifetime
Application number
US681124A
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English (en)
Inventor
Bakker Jan
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.)
Hartford National Bank and Trust Co
Original Assignee
Hartford National Bank and Trust 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
Application filed by Hartford National Bank and Trust Co filed Critical Hartford National Bank and Trust Co
Application granted granted Critical
Publication of US2494425A publication Critical patent/US2494425A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
    • C25F3/00—Electrolytic etching or polishing
    • C25F3/16—Polishing
    • 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
    • C25B11/042—Electrodes formed of a single material
    • C25B11/043—Carbon, e.g. diamond or graphene
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0048—Tubes with a main cathode
    • H01J2893/0051—Anode assemblies; screens for influencing the discharge

Definitions

  • a graphite cylinder having a length of 8 cms. and a diameter of 2 cms. is arranged as the anode in an electrolysis bath of molten potassium hydrofiuoride KI-IFz which is not entirely anhydrous. At a voltage of volts the anode is loaded for half an hour with a current of 15 amperes. The graphite anode is then as smooth as a mirror. If the graphite rod is housed in a current-converting tube to form the anode and is deprived of gases in the usual manner, the current-converting tube is free from arcing back to a high extent.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
US681124A 1943-03-15 1946-07-02 Electrolytically polished graphite anode Expired - Lifetime US2494425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL628129X 1943-03-15

Publications (1)

Publication Number Publication Date
US2494425A true US2494425A (en) 1950-01-10

Family

ID=19788649

Family Applications (1)

Application Number Title Priority Date Filing Date
US681124A Expired - Lifetime US2494425A (en) 1943-03-15 1946-07-02 Electrolytically polished graphite anode

Country Status (4)

Country Link
US (1) US2494425A (enrdf_load_stackoverflow)
GB (1) GB628129A (enrdf_load_stackoverflow)
NL (1) NL65822C (enrdf_load_stackoverflow)
SE (1) SE115949C1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876190A (en) * 1955-04-18 1959-03-03 Union Carbide Corp Duct anode
US3432411A (en) * 1965-12-08 1969-03-11 Weyerhaeuser Co Method of operating an electrolytic chlorine production cell
US4602985A (en) * 1985-05-06 1986-07-29 Eldorado Resources Limited Carbon cell electrodes
US20150247255A1 (en) * 2014-02-28 2015-09-03 Boe Technology Group Co., Ltd. Electrochemical polishing solution, process for electrochemically polishing graphite gate electrode and graphite gate electrode

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1484733A (en) * 1919-06-30 1924-02-26 Frank C Mathers Method of making fluorine
US1866969A (en) * 1928-07-17 1932-07-12 Fredenhagen Karl Electrolytic production of fluorine
GB401471A (en) * 1931-09-12 1933-11-16 Philips Nv Improvements in or relating to gasfilled discharge tubes, particularly incandescent cathode rectifier tubes
GB455256A (en) * 1934-11-08 1936-10-16 British Thomson Houston Co Ltd Improvements in and relating to electrodes for electric discharge devices
US2329317A (en) * 1941-03-19 1943-09-14 Gen Electric X Ray Corp Method of conditioning anodes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1484733A (en) * 1919-06-30 1924-02-26 Frank C Mathers Method of making fluorine
US1866969A (en) * 1928-07-17 1932-07-12 Fredenhagen Karl Electrolytic production of fluorine
GB401471A (en) * 1931-09-12 1933-11-16 Philips Nv Improvements in or relating to gasfilled discharge tubes, particularly incandescent cathode rectifier tubes
GB455256A (en) * 1934-11-08 1936-10-16 British Thomson Houston Co Ltd Improvements in and relating to electrodes for electric discharge devices
US2329317A (en) * 1941-03-19 1943-09-14 Gen Electric X Ray Corp Method of conditioning anodes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2876190A (en) * 1955-04-18 1959-03-03 Union Carbide Corp Duct anode
US3432411A (en) * 1965-12-08 1969-03-11 Weyerhaeuser Co Method of operating an electrolytic chlorine production cell
US4602985A (en) * 1985-05-06 1986-07-29 Eldorado Resources Limited Carbon cell electrodes
US20150247255A1 (en) * 2014-02-28 2015-09-03 Boe Technology Group Co., Ltd. Electrochemical polishing solution, process for electrochemically polishing graphite gate electrode and graphite gate electrode
US9551085B2 (en) * 2014-02-28 2017-01-24 Boe Technology Group Co., Ltd. Electrochemical polishing solution, process for electrochemically polishing graphite gate electrode and graphite gate electrode

Also Published As

Publication number Publication date
GB628129A (en) 1949-08-23
NL65822C (enrdf_load_stackoverflow)
SE115949C1 (enrdf_load_stackoverflow) 1946-03-05

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