DYNAMICS OF CERIUM DISTRIBUTION DURING OSCILLATORY EXTRACTION

The dynamics of the Ce distribution in a nonequilibrium extraction pro cess are investigated. Results are presented for the extraction of Ce by tributylphosphate in organic diluents from an aqueous solution in w hich a Belousov-Zhabotinskii oscillating reaction is occurring. The ti me dependences of [Ce] in the organic phase of the oscillatory extract ion system that are synchronous with the redox-potential dependences a re obtained for the first time. The effect of the initial concentratio ns of Ce, oxidant, and organic substrate on the principal parameters o f the oscillatory extraction, such as the frequency, amplitude, etc., is found. A conclusion is made about the ability to central an oscilla tory extraction process.