Fig. 6: Comparison of selected bulk and trace elements extraction performance between leachate-IL and ash-IL systems. | npj Materials Sustainability

Fig. 6: Comparison of selected bulk and trace elements extraction performance between leachate-IL and ash-IL systems.

From: Sustainable extraction of rare earth elements from coal fly ash leachates using a recyclable ionic liquid

Fig. 6

Extraction from leachates was performed under the same conditions (pH ~11, 25 mM ascorbic acid, and 10 mg betaine/g leachate). a Distribution, D, of selected bulk and trace elements in each system. An * indicates elements with very low concentrations in the IL phase but no detectable amounts remaining in the leachate after extraction. b Recovery efficiencies, R%, of selected bulk and trace elements in each system.

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