Abstract
A review is presented of selected surface and colloid chemistry concepts concerned with interactions in solid/water systems. With the aid of these concepts, an attempt is made to elucidate the interfacial physico-chemical factors underlying selected hydrometallurgical leaching processes: (a) the adsorption-desorption model and the ion-transfer model of non-oxidative dissolution, (b) the effects of solid-state point defects on interfacial activity and dissolution, (c) the adsorption of hydrolyzable metal ions and how this affects metal losses in aqueous ammoniacal leaching systems, (d) interaction of aurocyanide complexes with activated carbon and carbonaceous ores, (e) the role of passive films in the dissolution of metallic phases with aqueous ammoniacal solutions, and (f) the enhancement of leaching rates via product layer modificaion with surface active agents.
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Osseo-Asare, K. (1984). Interfacial Phenomena in Leaching Systems. In: Bautista, R.G. (eds) Hydrometallurgical Process Fundamentals. NATO Conference Series, vol 10. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2274-8_9
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