Extraction of uranium from aqueous solution by phosphonic acid-imbedded polyurethane foam.
Phenylphosphonic acid was imbedded into the matrix of the polyurethane foam during the fabrication process of the polymer. The extraction of uranium by phosphonic acid-imbedded polyurethane foam and blank polyurethane (i.e., foam without phosphonic acid functional groups) was investigated. Phosphonic acid-imbedded foam showed superior extractability of uranium from solutions with pH=7.0+/-1.5 over a wide range of temperature.
Katragadda
S
S
Department of Chemistry, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada.
Gesser
H D
HD
Chow
A
A