Sm. Kakade et Vm. Shinde, ANALYTICAL STUDY ON SEPARATION OF VANADIUM(V), NIOBIUM(V), AND TANTALUM(V), Bulletin of the Chemical Society of Japan, 67(5), 1994, pp. 1306-1309
A simple and rapid method for extractive separation of vanadium(V), ni
obium(V), and tantalum(V) from halide media has been worked out using
triphenylphosphine oxide in toluene as an extractant. The optimum cond
itions for extraction and. separation have been evaluated from critica
l study of various variable factors. The log-log plots are used to asc
ertain probable extractable species. The method is applicable to the a
nalysis of standard alloy samples and synthetic mixtures. The results
are reproducible and accurate.