Recent advances in layered double hydroxide-based nanomaterials for the removal of radionuclides from aqueous solution.

Synergic effects in the solvent extraction of the actinides—I uranium(VI)

The preparation and infra-red absorption spectra of several complexes of bis-(2-ethylhexyl)-phosphoric acid☆

Uranium solvent extraction (SX) from aqueous acidic solutions is reviewed. First the uranium availability in earth as well as resources, mining and production reports is presented and followed by SX basic flowsheet and various important stages. Extraction, scrubbing, stripping and finally solvent equilibrium are presented in a flow-sheet form. The second half of the review discusses the various extractants used for uranium extraction and separation from acidic solutions. The extractants are divided in four types: 1) nitrogen-based extractants, 2) phosphorous-based extractants, 3) sulfur-based extractants, and 4) other extractants. Nitrogen-based extractants cover predominantly the amides and amines functional group containing extractants. The phosphorous-based extractants: tri-butyl-phosphate (TBP), di(2-ethylhexyl) phosphoric acid (D2EHPA), 2-ethylhexyl phosphonic acid mono-2-ethylhexyl (PC88A), tri-n-octyl-phosphine oxide (TOPO or Cyanex 923) and bis(2,4,4-trimethyl pentyl) phosphinic acid (Cyanex 272) ...

C. F. Coleman

Papers

THE EXTRACTION OF IRON(III) FROM ACID PERCHLORATE SOLUTIONS BY DI-(2-ETHYLHEXYL)-PHOSPHORIC ACID IN n-OCTANE

Synergism and diluent effects in the extraction of cesium by 4-sec-butyl-2-(α-methylbenzyl)phenol (BAMBP)