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Figure 1

From: Technospheric Mining of Rare Earth Elements from Bauxite Residue (Red Mud): Process Optimization, Kinetic Investigation, and Microwave Pretreatment

Figure 1

Bauxite residue characterization results. (a) Aqua regia digestion - ICP-OES results indicating REEs composition. (b) XRF elemental composition. Error bars represent the standard error of the mean for ten replicates (c) X-ray diffractogram. (d) BSE image of the bauxite residue particle; bright spots are the high atomic number REEs. (el) STEM image and EDS elemental mapping of the bauxite residue particle.

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