title: Extraction of zirconium and hafnium thiocyanate with polyurethane foam.
abstract: Conditions for the extraction of zirconium and hafnium thiocyanate by polyether-type polyurethane foam were studied in detail. The composition of the extractable species was found to be dependent on both the thiocyanate and metal-ion concentrations. The extraction efficiency for zirconium and hafnium depended on the size of the counter-cation as well as on the type of anion.
authors.affiliation: Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada.
authors.forename: L
authors.initials: L
authors.lastname: Jin-Chun
authors.forename: A
authors.initials: A
authors.lastname: Chow