| 摘要 |
<p>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. The apparatus for producing the metal carbide is a vertical furnace with an upper inlet and a lower bifurcated discharge. An indirectly heated vertical muffle is in the upper section and at least two electrodes extend into the lower section of the furnace, mounted on the sidewalls. A third electrode is mounted in a discharge area in the center of the lower section.</p> |
