Chemistry: electrical and wave energy – Processes and products
Patent
1983-01-20
1984-10-23
Barr, Josephine
Chemistry: electrical and wave energy
Processes and products
252518, 252519, 252520, 252521, 252512, 252513, 252514, 204 64T, 204 66, 204 67, 204 70, 204291, 204292, 204243R, C25C 300
Patent
active
044786930
ABSTRACT:
An inert type electrode composition suitable for use in the electrolytic production of metals such as aluminum is disclosed. The aluminum is produced from an aluminum-containing material dissolved in a molten salt. The electrode composition is fabricated from at least two metals or metal compounds combined to provide a combination metal compound containing at least one of the group consisting of oxide, fluoride, nitride, sulfide, carbide or boride, the combination metal compound defined by the formula: ##EQU1## Z is a number in the range of 1.0 to 2.2; K is a number in the range of 2.0 to 4.4; M.sub.i is at least one metal having a valence of 1, 2, 3, 4 or 5 and is the same metal or metals when M.sub.i is used in the composition; M.sub.j is a metal having a valence of 2, 3 or 4; X.sub.r is at least one of the elements from the group consisting of O, F, N, S, C and B; m, p and n are the number components which comprise M.sub.i, M.sub.j and X.sub.r ; F.sub.M.sbsb.i, F'.sub.M.sbsb.j, F'.sub.M.sbsb.i or F.sub.x.sbsb.r are the mole fractions of M.sub.i, M.sub.j and X.sub.r and 0<.SIGMA.F'.sub.M.sbsb.i <1.
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Alexander Andrew
Aluminum Company of America
Barr Josephine
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