Abstract
Mineralogical Characteristics of a Micro-Fine and Low Grade Refractory Gold Ore
Highlights
With the rapid development of the gold industry, refractory gold ores are becoming increasingly important resources for gold production [1,2]
Autoclave pressure oxidation (AC POX) of the sulfide ore and subsequent cyanidation is a common technology used to recover the gold in such types of ore
Flotation is often used as a pre-treatment method to refractory gold ore [5]
Summary
With the rapid development of the gold industry, refractory gold ores are becoming increasingly important resources for gold production [1,2]. The fine grind usually causes the production of significant quantities of slimes, which comprise easy-to-float gangue minerals such as mica, dolomite, and calcite. Wei, Li, and Xie (2006) used the flowsheet of one rough-five cleaners-three scavengers with mixed collectors of butyl xanthate and butyl dithiophosphate on a refractory gold ore from Shuanglong Gold Mine of Shanxin, which contained arsenic and carbon with fine dissemination of gold particles. They achieved concentrate gold grade 36.04 g/t and gold recovery of 76.15%. Attention was paid to the occurrence of main metallic minerals and the mineral liberation degree of pyrite
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