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There are two basic types of ore in the region, massive and disseminated, with different
physical features and occurrence areas respectively related to geologic domains of
migmatites, gneisses and schists.
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Massive Ores
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Disseminated Ore
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The Sector of Mineral Technology of the Center
of Nuclear Technology Development (CDTN), carried out a study of mineralogical characterization
and developed a study of flotation in laboratory in order to ascertain the technical
feasibility of recovering the graphite (annex XIII). The results of this work show that a
graphite concentrate was achieved with a 90,7% content and 87,2% carbon recovery, by using a
circuit made up of one rougher stage, three cleaner stages and two scavenger stages.
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Table of Work Performed
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