Nonaqueous solvent extraction for enhanced metal separations: concept, systems, and mechanisms

Z Li, B Dewulf, K Binnemans - Industrial & Engineering Chemistry …, 2021 - ACS Publications
Efficient and sustainable separation of metals is gaining increasing attention, because of the
essential roles of many metals in sustainable technologies for a climate-neutral society, such …

Assorted functionality-appended UiO-66-NH 2 for highly efficient uranium (vi) sorption at acidic/neutral/basic pH

S Tripathi, B Sreenivasulu, A Suresh, CVSB Rao… - RSC …, 2020 - pubs.rsc.org
A series of functionalized metal organic frameworks (MOFs) were synthesized by the post-
synthetic modification (PSM) of Zr (IV)-containing UiO-66-NH2 MOFs using covalent grafting …

Efficient phenyl phosphate ester extractant synthesis and solvent extraction performance evaluation for transition metals

B Han, S Li, D Chang, J Li, T Li, S Yang, Y Chen… - Separation and …, 2024 - Elsevier
The extraction performance of traditional acidic phosphate ester extractants (P204 and
P507) will decrease sharply as the aqueous-phase acidity increases. Although …

Acid-resistant luminescent Si/UiO-66-amidoxime (AO) nanostructures for rapid and efficient recovery of U (VI): experimental and theoretical studies

VS Vaddanam, A Pamarthi, S Sengupta… - ACS Applied Nano …, 2023 - ACS Publications
Despite the extremely favorable properties of metal–organic frameworks (MOFs) for
multifunctional applications, the challenge to synthesize MOFs with high chemical, radiation …

Efficient capture of actinides from strong acidic solution by hafnium phosphonate frameworks with excellent acid resistance and radiolytic stability

L Xiong, K Lv, M Gu, C Yang, F Wu, J Han… - Chemical Engineering …, 2019 - Elsevier
A kind of unconventional metal–organic framework (UMOF), hafnium phosphonates (HfP)
with different molar fractions P/(P+ Hf), were synthesized via a template-free, one-pot …

Highly selective separations of U (VI) from a Th (IV) matrix by branched butyl phosphates: insights from solvent extraction, chromatography and quantum chemical …

A Chandrasekar, A Suresh, M Joshi… - Separation and …, 2019 - Elsevier
Separation of f-block elements is a daunting task due to their similar chemical behaviour.
Among these, the separation of uranium from a thorium matrix is one of the persisting …

Solubility of di-cyclohexylhydrogen phosphonate in supercritical carbon dioxide medium: Application towards the recovery of uranium from aqueous solution

P Rajani, KC Pitchaiah, B Sreenivasulu… - Journal of Molecular …, 2023 - Elsevier
Hydrogen phosphonates are di-esters of phosphonic acids and are widely employed as
ligands for recovery of actinide species from different matrices. An alicyclic hydrogen …

Extraction of uranium from sulfuric acid media using amino-diamide extractants

M Wehbie, G Arrachart, T Sukhbaatar, XF Le Goff… - Hydrometallurgy, 2021 - Elsevier
Abstract Two extractants, N, N′-((octylazanediyl) bis (ethane-2, 1-diyl)) dioctanamide (LI)
and N, N′-((octylazanediyl) bis (ethane-2, 1-diyl)) di-2-methylheptanamide (LII), hav e been …

Solubility and extraction studies on diamylhydrogen phosphonate in supercritical carbon dioxide

B Sivaramakrishna, M Darshana, P Rajani… - The Journal of …, 2024 - Elsevier
Dialkylhydrogen phosphonates have emerged as potential extractants for extraction and
recovery of actinide species from different environments. The applicability of …

Experimental evidence and quantum chemical insights into extraction and third phase aggregation trends in Ce (IV) organophosphates

A Chandrasekar, N Sivaraman, TK Ghanty… - Separation and …, 2019 - Elsevier
Abstract “Third phase” formation is an aggregation phenomenon that arises due to the
mutual attraction of the polar cores of reverse micelles in a non-polar medium. A major …