title: Substituted ethan phosphonic acid esters as reagents for the separation of molybdenum from rhenium by solvent extraction.
abstract: New esters of the ethan phosphonic acids have been synthesized and their extraction properties studied with respect to Mo(VI), Re(VII), Fe(III),Au(III),Tl(III) and Sb(V). A possibility is shown for the analytical separation of molybdenum from rhenium (beta = 700). The state of these new extraction agents in carbon tetrachloride solution, and the mechanism of the extraction processes, have been investigated by means of infrared spectra.
authors.affiliation: Institute of General and Inorganic Chemistry and Institute of Organic Chemistry, Bulgarian Academy of Sciences, Sofia, Bulgaria.
authors.forename: N
authors.initials: N
authors.lastname: Jordanov
authors.forename: S
authors.initials: S
authors.lastname: Mareva
authors.forename: G
authors.initials: G
authors.lastname: Borisov
authors.forename: B
authors.initials: B
authors.lastname: Jordanov