Entrainment and true flotation of a natural complex ore sulfide

Abstract

This study attempts to assess the contribution of entrainment and true flotation in the overall recovery by the laboratory tests performed on a natural complex sulfide ore, provided by la Compagnie Minière des Guemassa (Morocco), and the effect of two different collectors, Potassium Amyl Xanthate (PAX) and Sodium di-isobutyl di-thiophosphinate (Aerophine 3418A), on the two contributions. Overall recovery and true recovery were fitted to first kinetic model and modified flotation parameters were calculated to measure of flotation separation selectivity of chalcopyrite, galena and sphalerite over gangue and pyrrhotite. To estimate the entrainment, Ross method was the most suitable in the case of complex sulfide ore with high content of pyrrhotite. Trahar method overestimates the effect of entrainment.

Effect of zinc process water recycling on galena flotation from a complex sulphide ore

“…Bench-scale flotation tests were carried out on a representative sample of the complex sulphide ore from the Draa Sfar mine (Morocco) processed by MCG. The sulphide ore used was composed of 6.43% sphalerite (ZnS), 2.22% galena (PbS), 0.95% chalcopyrite (CuFeS₂), 41.57% pyrrhotite (Fe 9 S 10 ), and 48.82% gangue, consisting mainly of quartz, talc, chlorite, calcite, siderite, and ankerite (Abidi et al, 2014;Boujounoui et al, 2015Boujounoui et al, , 2018Boujounoui et al, , and 2020.…”

Optimization of chlorite and talc flotation using experimental design methodology: Case study of the MCG plant, Morocco

“…Bench-scale flotation tests were carried out on a representative sample of the complex sulphide ore from MCG's Draa Sfar mine (Marrakech, Morocco). The ore used was the same as that used by Abidi et al (2014) and Boujounoui et al (2015Boujounoui et al ( , 2018Boujounoui et al ( , 2019. It was composed of sphalerite, galena, chalcopyrite, pyrrhotite, and gangue minerals consisting mainly of quartz, talc, chlorite, calcite, siderite, and ankerite.…”

“…This study is a part of an overall project to improve the performance of the MCG flotation plant by optimizing the mica flotation, as well the recycling of process water. (Abidi et al, 2014(Abidi et al, , 2016(Abidi et al, , 2019Boujounoui et al, 2015Boujounoui et al, , 2017Boujounoui et al, , 2018Boujounoui et al, , 2019. Since the MGC plant is located in a semi-arid climate, improving the rate of process water recycling is still a serious target, despite the possible modification in the flotation conditions.…”