Investigating fine galena recovery problems in the lead circuit of Mount Isa Mines Lead/Zinc Concentrator part 1: Grinding media effects

Dissolution of fine and intermediate sized galena particles and their interactions with iron hydroxide colloids

“…For example, with an increase in the amount of iron hydroxide colloids produced by using more electrochemically active iron steel medium, the flotation of intermediate galena or chalcopyrite remains similar, but the flotation of fine galena or chalcopyrite is depressed significantly [6]. A similar trend has been observed in the flotation of many other base metal sulfides [7][8][9]. It seems that iron hydroxide colloids are more adsorbed on fine particles than intermediate particles.…”

The impact of iron sulfide on lead recovery at the giant Navan Zn–Pb orebody, Ireland

“…Oxidation of the anodic mineral is frequently accompanied by the dissolution and re-adsorption of its metal ion(s) onto the original mineral and the surface of other minerals (Cullinan et al, 1999). Previous studies have shown that the larger the ratio of cathodic mineral to anodic mineral surface area, the greater the galvanic interaction (Kwong et al, 2003;Yelloji Rao and Natarajan, 1989).…”

Reducing uncertainty in mineral flotation—flotation rate constant prediction for particles in an operating plant ore

“…fine galena or fine pyrite) (Cullinan et al, 1999). The attachment model predicts that the attachment efficiency approaches unity for very fine particles, almost independently of particle contact angle (above 20°).…”