A review of acid leaching of uraninite

Industrial Deployment of Reactive Transport Simulation: An Application to Uranium In situ Recovery

“…. Two technological choices are then available (Bhargava et al 2015): acid (usually sulfuric acid) or alkaline (higher pH carbonate or bicarbonate solutions) leaching. In both cases, oxidizing agents can be added: air or oxygen, hydrogen peroxide, ferric iron and others.…”

Numerical modelling of column experiments to investigate in-situ bioleaching as an alternative mining technology

“…In-situ recovery consists in exploiting an ore body in place by circulating a leaching solution instead of resorting to excavation or galleries. It has been used for over a century for extracting various commodities such as copper [Sulli- van, 1931], and has become one of the principal extraction method for uranium in the last decades [Bhargava et al, 2015;Seredkin et al, 2016]. Leaching is commonly applied on the surface in tanks or heaps [Sullivan, 1931;Riekkola-Vanhanen, 2013;Wang, 2005], but is more interestingly applied in-situ when geological settings are favourable.…”

Environmental impact of alum shale mining and oil and uranium production in Kvarntorp, Sweden, based on historical archives and environmental monitoring data

“…Some shales are also of interest due to potential metal recovery. Black shale deposits are estimated to be about the 14th most important uranium resource from an economical perspective [10] and there is ongoing research about recovery methods [11].…”