US2494425A - Electrolytically polished graphite anode - Google Patents
Electrolytically polished graphite anode Download PDFInfo
- 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
Links
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)
- Vessels And Coating Films For Discharge Lamps (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
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 (de) |
GB (1) | GB628129A (de) |
NL (1) | NL65822C (de) |
SE (1) | SE115949C1 (de) |
Cited By (4)
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)
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 |
-
0
- NL NL65822D patent/NL65822C/xx active
-
1944
- 1944-03-13 SE SE207444A patent/SE115949C1/sv unknown
-
1946
- 1946-07-02 US US681124A patent/US2494425A/en not_active Expired - Lifetime
- 1946-09-27 GB GB28921/46A patent/GB628129A/en not_active Expired
Patent Citations (5)
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)
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 |
---|---|
NL65822C (de) | |
SE115949C1 (de) | 1946-03-05 |
GB628129A (en) | 1949-08-23 |
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