fig2

Alkali pretreatment effects on acid leaching recovery of rare earth elements from coal waste of the Western Kentucky No. 13 and Fire Clay seams

Figure 2. Leaching recoveries of individual REEs obtained from the alkali pretreatment of the (A) Western Kentucky No. 13 and (B) Fire Clay coal wastes with 5 M NaOH. REEs: Rare earth elements.

Minerals and Mineral Materials
ISSN 2832-269X (Online)

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All published articles are preserved here permanently:

https://www.portico.org/publishers/oae/