Research Papers by D.K. Singh

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

A solution containing oxalate complexes of rare earths, yttrium and iron (III) is obtained during the processing of wet process phosphoric acid for uranium recovery by solvent extraction. A process is described to recover oxalic acid from such a solution. The process is based on the conversion of ir