Prueba metalúrgica para determinar el factor ORG (oro recuperable gravimétricamente) en el equipo Knelson (kc-md3) con material de mina del distrito Nambija –Condominio Norte

Abstract

The present research was made with the objective of determinate the E-GRG (Gravimetric recoverable gold) factor in a material from a mine of the mining district of Nambija, Condominio Norte. For the metallurgical test a concentrator Knelson (KC-MD3) was used, this is a special equipment for laboratory that recuperates many minerals, gold in this case. The used test had three stages of consecutive grinding and concentration. The parameters that has been considered were: water pressure (1 PSI), feed flow (3,5 l/m), rotational force (60 Gs). The material that was used in the metallurgical test corresponds to a skarn with a specific weight of 3,11 g/cm3, its mineralogy is principally quartz, calcite and epidote. The material was pulverized sequentially (3, 9, 18 minutes), its D80 were: 248 µm, 176 µm y 82 µm respectively. From an initial amount of 0,19 g/tn of gold it was obtained concentrates of 14,38 g/tn y 9,61 g/tn. The average E-ORG factor is 52,28%, amount that permits to consider the methods like a good option for concentrate gold in the studied material