Production of Aluminum-Silicon Alloy and Ferrosilicon and Commercial Purity Aluminum by the Direct Reduction Process. Second Interim Technical Report, Phase C for the Period 1980 April 1-1980 June 30

摘要

Beneficiation of bauxite by high intensity wet magnetic separation to remove Fe and Ti was not successful. Pilot reactor VSR-3 was modified and operated to evaluate the blast-arc reduction process concept. Modifications included a tapered upper shaft section, vertical stroke ram, and CO preheater system. The taper/ram revisions were successful in maintaining bed movement, resulting in several continuous runs in which large quantities of burden were fed and metal product was recovered. Pilot VSR samples were also analyzed. The major phases contained Si and FeSi sub 2 Al sub 4 intermetallics in a matrix of eutectic Al-Si. (ERA citation 06:003918)