Caracterização mineralógica em minério de tântalo e nióbio de Porto Grande – AP

Abstract

This work presents the results of mineralogical characterization studies on two ore samples Tantalite-Columbite. The methodology used for the studies involved the execution of analysis characterization in size distribution in Tyler series of 100#; 150#; 200# and 325# mesh, mineral separations by liquid heavy, followed by chemical-mineralogical studies using fluorescence and X-ray diffraction, aiming identify the minerals phases present. The sample collection was punctual, realized at the head margin of the drainage and a depth of 70 cm, where was constituted the first sample. Already the second sample was composed after three bateia sequences. The studied samples present different content different concentrations of Ta; Ti; Fe; Zr and Nb, the largest difference observed refers to the increase in the content of tantalum and titanium and decrease of the content of silício. Empiric work and primitive form realized this region indicate, after bateiamento, content of tantalum between 50 to 55%.