Selection of a hydrometallurgical process for rare earths ...
1. Introduction. The main mineral sources of rare earth elements (REEs) are monazite, xenotime and bastnasite (Jha et al., 2016).Monazite, which is the object of the present study, is composed of REEs phosphates, also presenting thorium and uranium in variable concentrations (Krishnamurthy and Gupta, 2015; Lapidus and Doyle, 2015).The current …
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