04114nam 2200937z- 450 991055769120332120231214133236.0(CKB)5400000000044619(oapen)https://directory.doabooks.org/handle/20.500.12854/76291(EXLCZ)99540000000004461920202201d2021 |y 0engurmn|---annantxtrdacontentcrdamediacrrdacarrierLeaching Kinetics of Valuable MetalsBasel, SwitzerlandMDPI - Multidisciplinary Digital Publishing Institute20211 electronic resource (188 p.)3-0365-0548-2 3-0365-0549-0 Leaching is a primary extractive operation in hydrometallurgical processing, by which a metal of interest is transferred from naturally occurring minerals into an aqueous solution. In essence, it involves the selective dissolution of valuable minerals, where the ore, concentrate, or matte is brought into contact with an active chemical solution known as a leach solution. Currently, the hydrometallurgical processes have a great number of applications, not only in the mining sector—in particular, for the recovery of precious metals—but also in the environmental sector, for the recovery of toxic metals from wastes of various types, and their reuse as valuable metals, after purification. Therefore, there is an increasing need to develop novel solutions, to implement environmentally sustainable practices in the recovery of these valuable and precious metals, with particular reference to critical metals; those included in materials that are indispensable to modern life and for which an exponential increase in consumption is already a reality, or will be in a short-term perspective. For publication in this Special Issue, consideration has been given to articles that contribute to the optimization of the kinetic conditions of innovative hydrometallurgical processes—economic and of low environmental impact—applied to the recovery of valuable and critical metals.Research & information: generalbicssceudialyterare earth elementsdry digestionleachingneural networkuraniumcontaminated groundwaterpermeable reactive barrierzero-valent ironAl-Ni alloysaluminothermic reactionsreaction rateAl master alloyskineticsHydrometallurgical processesChalcopyritelow-pressure leachingmining wastehydrometallurgical processesleaching kineticthiosulphate leachingelectrowinninggoldwaste printed circuit boardiodideiodineascorbic acidprecipitationthiosulfate oxidationcatalysisoxygenhigh alumina fly ashdesilication ratephysical-chemical activationalumina silica mass ratiorefractory gold concentrateresources depletionreducing harmful emissionsarsenicnitric acidshrinking core modelpyritearsenopyriteclaysnanoscale zero-valent irongroundwaterwastewatergeochemical characteristicspitchblendeU neutral leachingELZPA ore deposit in PakistanResearch & information: generalUbaldini Stefanoedt1323480Ubaldini StefanoothBOOK9910557691203321Leaching Kinetics of Valuable Metals3035605UNINA