Journal article

Selective recovery of Rhenium from industrial leach solutions by synergistic solvent extraction

T Hong, M Liu, J Ma, G Yang, L Li, KA Mumford, GW Stevens

Separation and Purification Technology | Elsevier Inc. | Published : 2020

Abstract

In our previous work, the selective precipitation of rhenium from an acidic washing solution present in the copper smelting process was studied. The precipitate formed is a polymetallic sulfide that contains rhenium, copper, arsenic, and bismuth. To recover rhenium from the precipitate, the separation of perrhenate ions from industrial leach solutions using synergistic solvent extraction was investigated. For the synergistic extraction system of Alamine 336 and TBP, Alamine 336 is the primary compound that combines with the anions in the leach solution. The solubility of the extraction complex in the organic phase is enhanced by TBP bonding with the neutral complex. For the extraction of per..

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Grants

Awarded by Natural Science Foundation of Shaanxi Province, China


Awarded by Basic Research Foundation of Xi'an University of Architecture Technology


Awarded by China Scholarship Council


Funding Acknowledgements

The authors are grateful for the financial support from the Natural Science Foundation of Shaanxi Province, China (Grant No. 2016JM5025) and the Basic Research Foundation of Xi’an University of Architecture & Technology (Grant No. QN1724). Tao Hong is grateful for the financial support provided by the China Scholarship Council (No. 201707835003).