Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1980-11-28
1984-04-10
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 68B, 75 84, C22B 404
Patent
active
044419201
ABSTRACT:
A method and apparatus for the continuous production of metals and/or carbides by thermal reduction is described. In the process, a mixture of metal oxide and carbon is agglomerated, each piece of agglomerate encased in carbon and/or graphite, the carbon casing serves as a housing of the agglomerate during the reducing reaction and as an electrical resistance element for heating of the agglomerate, the encased agglomerates are coked and reduced to metal carbide in a tightly-packed form. Extraction of the metal from the carbide is effected with a halide of the same metal.
REFERENCES:
patent: 3135696 (1964-06-01), Ruelle et al.
patent: 3929456 (1975-12-01), Kibby
patent: 4072512 (1978-02-01), Brusako et al.
patent: 4216010 (1980-08-01), Kibby
Herrmann et al., Aluminum, vol. 37, No. 4, 1961, pp. 215-221, "Electrothermic Winning of Aluminum in Patent Literature", Translation.
Andrews M. J.
Vereinigte Aluminium-Werke A.G.
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