Research Status of Rare Earth Recovery from Sedimentary Rare Earth Ore
The rare earth mineral resource occurring in kaolinite clay rocks in northwest Guizhou is a new type of rare earth mineral resources, which belongs to the brand-new "sedimentary rare earth ore". The average thickness of the rare earth deposit is 5.07 m with good continuity. The average grade of rare earth oxides is 0.26%, the highest is 1.6%, and the …