Extraction kinetics of copper with benzoylacetone during drop formation.

Abstract

The extraction rate of copper with benzoylacetone was studied by a single-drop method, as basic research on extraction kinetics of metals by chelating agents. Specifically, a study of the extraction rate during drop formation was carried out. A theoretical analysis of extraction kinetics accompanied by chemical reaction in the continuous phase was carried out for an (w, «)-th order reaction. The relationships between the extent of extraction during drop formation and drop formation time, concentrations of reactants in both phases and the reaction rate constant were clarified. The experimental results were correlated theoretically. The good correspondence obtained indicates that the theoretical analysis described in this paper is useful for determination of kinetic mechanismsfor the extraction of metals by chelating agents.

Kinetic determinations and some kinetic aspects of analytical chemistry

“…Their prolific contributions to the subject cover the extraction kinetics of copper with benzoylacetone during drop formation (199), during drop rise (200), in a stirred transfer cell (201), and with liquid surfactant membranes containing benzoylacetone as a mobile carrier (202)(203)(204). The same research group has reported on the effects of interfacial rate process for the extraction of hydrochloric acid by long-chain alkylamines (205).…”