Eficiência do processo de lavagem de minério de quartzo na redução de teores de alumínio (Al), ferro (Fe) e cálcio (Ca)

Abstract

In the process of producing silicon metal alloys obtained by carbothermic reduction of sources of silicon (quartz) in electric submerged arc furnaces, the aluminum (Al), Iron (Fe), and Calcium (Ca) contents present in the quartz mineral are considered the three main elements, based on their contents that give the alloy a percentage of impurities. In this sense, the study aimed to evaluate the efficiency of reducing the levels of these elements through the application of the industrial washing process carried out by the use of a feeder and vibrating sieve with high-pressure sprinkler nozzles.