COMPARATIVE ANALYSIS OF FLOTATION REAGENTS FOR THE BENEFICIATION OF GOLD-SULFIDE ORES
DOI:
https://doi.org/10.25635/2313-1586.2024.04.118Keywords:
fine gold, carbonaceous matter, flotation enrichment, reagent regime, selective concentration, sulfide minerals, technological parametersAbstract
The paper presents a comparative analysis of flotation reagents for the beneficiation of gold-sulfide ores from the Malomyr deposit located in the Amur region. The ores from this deposit are characterized by a complex material composition that includes sulfide minerals, carbonaceous matter, and finely dispersed gold, which creates significant challenges during their flotation enrichment. The aim of the study is to experimentally investigate flotation beneficiation to improve gold recovery in the concentrate. To achieve this goal, tasks were set, including studying the influence of reagent regimes and preliminary ultrasonic treatment of the ore on flotation efficiency, as well as developing a rational technological scheme for enrichment. Various reagents such as collectors, depressants, and frothers were used in the research, along with experiments conducted on mechanical flotation machines. The results show that carbonaceous matter and finely dispersed gold negatively affect the flotation process, leading to gold losses in the tails. The scientific novelty of the work lies in the comprehensive study of the impact of reagent regimes and ultrasonic treatment on flotation beneficiation indicators. The practical significance consists in the development of an effective technological scheme that ensures high gold recovery from the ores of the Malomyr deposit. This work is aimed at solving the urgent problem of improving the efficiency of processing gold-sulfide ores.
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