Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1981-10-01
1983-08-02
Tung, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204245, 204 67, 204294, 264 296, 264 294, 264 85, C25C 306
Patent
active
043964826
ABSTRACT:
An improved electrolytic cell is provided for production of a metal such as aluminum by electrolysis of a compound of the metal in a solvent or bath such as molten salt. Electrolysis is carried out by passing a current from an anode to a cathode between which the solvent bath is situated. The cathode comprises a base cathode and cathode extension surfaces comprising graphite and at least 90% refractory hard metal such as titanium diboride. The cathode extension surfaces are produced from a mixture comprising at least 90% refractory hard metal and a carbonaceous binder with little or substantially no particulate carbonaceous material and graphitizing said mixture above 2350.degree. C. to graphitize the carbonaceous material therein to exhibit the graphitic structure.
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Das Subodh K.
Foster, Jr. Perry A.
Hildeman Gregory J.
Aluminum Company of America
Lippert Carl R.
Thane Nathan
Tung T.
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