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. 2022 Jun 11;8(6):e09706. doi: 10.1016/j.heliyon.2022.e09706

Figure 3.

Figure 3

XRD pattern of (a) lixivium and (b) lixiviant, (c) the change of pH in the leaching of ore, (d) infrared spectra analysis of lixiviant NBS and lixivium