Bioleaching and biosorption behavior of vanadium-bearing stone coal by Bacillus mucilaginosus

Dong, Yingbo; Chong, Shijia; Lin, Hai

doi:10.1007/s12613-021-2344-9

Cited by 7 publications

(1 citation statement)

References 42 publications

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“…Conventional hydrometallurgical approaches (e.g.,: solvent extraction, ion-exchange, or adsorption) separate V(V) 21 – 23 but suffer from limitations, including low affinity and selectivity, high extractant dosage, limited recyclability and toxic effluent generation 24 – 27 . Therefore, developing new materials and viable methods for recovering V(V) from acidic wastes is crucial.…”

Section: Introductionmentioning

confidence: 99%

A molecular extraction process for vanadium based on tandem selective complexation and precipitation

Osin,

Lin,

Gelfand

et al. 2024

Nat Commun

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Recycling vanadium from alternative sources is essential due to its expanding demand, depletion in natural sources, and environmental issues with terrestrial mining. Here, we present a complexation-precipitation method to selectively recover pentavalent vanadium ions, V(V), from complex metal ion mixtures, using an acid-stable metal binding agent, the cyclic imidedioxime, naphthalimidedioxime (H2CIDIII). H2CIDIII showed high extraction capacity and fast binding towards V(V) with crystal structures showing a 1:1 M:L dimer, [V2(O)3(C12H6N3O2)2]2−, 1, and 1:2 M:L non-oxido, [V(C12H6N3O2)2] ̶ complex, 2. Complexation selectivity studies showed only 1 and 2 were anionic, allowing facile separation of the V(V) complexes by pH-controlled precipitation, removing the need for solid support. The tandem complexation-precipitation technique achieved high recovery selectivity for V(V) with a selectivity coefficient above 3 × 105 from synthetic mixed metal solutions and real oil sand tailings. Zebrafish toxicity assay confirmed the non-toxicity of 1 and 2, highlighting H2CIDIII’s potential for practical and large-scale V(V) recovery.

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