Aplicación de técnicas metalúrgicas para la recuperación de oro de material de mina del sector San Vicente, cantón El Guabo, provincia de El Oro

Abstract

Abstract: The present work allowed us to find the best process to recover gold from a material of mine, through the characterization (physical, chemical and mineralogical) and evaluation of the material. Resulting in a relative density of 3.55 and the elements: silicon, calcium, iron, arsenic and sulfur, forming the minerals arsenopyrite (ore), quartz, dolomite and calcite (gangue); being in arsenopyrite where gold is found refractory encapsulated. For the evaluation of concentration processes, opted for three alternatives: alternative 1 was to process the material using a shaking table with a grain diameter D80 #120 mesh; Alternative 2 consisted of carrying out two floats normal by varying the primary collectors (Z6 and Z11) and two reverse floats by varying the depressants (Z6 and cement); Alternative 3 resulted from processing by flotation the shake table preconcentrate by normal flotation and flotation reverse using the reagents that gave the best performance in alternative 2. The Alternative 1 was the best process to concentrate the gold encapsulated in the arsenopyrite with a performance of 74.89%.