Solvent extraction

We present a density functional theory (DFT) based study on interaction of alkali metal cations (Li+ and Na+) with macrocyclic crown ethers of different ring sizes. The minimum energy structures, binding energies, and binding enthalpies of crown ether–cation complexes have been determined with a cor

Separation of high purity rare earth elements from their mixed oxides, obtained from monazite or xenotime, requires multiple stages of separation by circuits incorporating one or more solvents. The separation factors being small, a large number of counter-current stages become necessary. Process dev

A solvent extraction process for the production of nuclear grade Dy2O3 for its applications in advance heavy water reactor (AHWR) from a crude concentrate of rare earths containing Y2O3 ~ 67%, Dy2O3 ~ 22%, etc. has been developed and tested by bench-scale counter-current operations. The challenging

Separation of palladium from high level liquid waste (HLLW) solution originated from the reprocessing of spent fuel by PUREX process is carried out by solvent extraction and precipitation methods using oximes. In solvent extraction, palladium is extracted from the waste using 1.1×10–2M α-benzoin oxi