A stepwise carbochlorination-chemical vapor transport(SC-CVT) technique is proposed for separation of thorium from mixed bastnaesite-monazite concentrate.
The results show that rare earth elements can efficiently improve the structures of the Chromvanadizing layer, the rate of growth and properties of diffusion layer.
This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.
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Regolith or lunar soil gold platinum and many other rare earth elements such as atrium used in the manufacture of computer screens are all stored in the inner layers of Earth's satellite.