Recovery of Rare Earth Element from Acid Mine Drainage Using Organo-Phosphorus Extractants and Ionic Liquids
نویسندگان
چکیده
Acid mine drainage is a legacy environmental issue and one of the largest pollutants in many mining districts throughout world. In prior work, authors have developed process for recovery critical materials, including rare earth elements, from acid using preconcentration step followed by solvent extraction as concentration purification technology. As part downstream technology development efforts, we synthesized suite ionic liquid extractants that facilitate greater separation factors leading to lower capital costs reduced impacts. This article provides comparison conventional D2EHPA, EHEHPA C572 with their respective liquids [c101][D2EHP,c101][EHEHP] [c101][C572] elements drainage. study, laboratory-scale, multi-contact tests were conducted at high low extractant/dosages. The results show varied performance, [c101][D2EHP] [c101][EHEHP] performing poorer than counterparts [c101][c572] better. Recommendations further study on include stripping tests, continuous pilot testing, techno-economic analysis.
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ژورنال
عنوان ژورنال: Minerals
سال: 2022
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min12111337