fig13
![Alkali pretreatment effects on acid leaching recovery of rare earth elements from coal waste of the Western Kentucky No. 13 and Fire Clay seams](https://image.oaes.cc/020683d7-f854-43cd-b83e-bde768784680/4853.fig.13.jpg)
Figure 13. EDS spectra and elemental compositions of the different areas in particle WAL 1. EDS: ENERGY dispersive X-ray spectroscopy.
Figure 13. EDS spectra and elemental compositions of the different areas in particle WAL 1. EDS: ENERGY dispersive X-ray spectroscopy.
All published articles are preserved here permanently:
https://www.portico.org/publishers/oae/