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LIQUID-LIQUID EXTRATION OF ZIRCONIUM (IV) USING HIGH AMINE CTBA/n-HEXAN FROM SUNFURIC ACID MEDIA
Home Research Publications LIQUID-LIQUID EXTRATION OF ZIRCONIUM (IV) USING HIGH AMINE CTBA/n-HEXAN FROM SUNFURIC ACID MEDIA

LIQUID-LIQUID EXTRATION OF ZIRCONIUM (IV) USING HIGH AMINE CTBA/n-HEXAN FROM SUNFURIC ACID MEDIA

M N. C., A T. N. T., V Q. N., 2020, In: TNU Journal of Science and Technology, 225, 6, p. 243-248

Overview

Abstract:

The paper introducted results effect of the conditions on absorbance of ZrXO, the optimals absorption showed: wavelength was 535 nm, H2SO4 was 0.35 M, the ratio VZr(5.10^-3M)/VXO(5.10^-3M) = 5.0/5.2. Built a calibration curve to determine of Zr(IV) at 535 nm in the linear concentrations range from 10-4 - 5.10-3 M. Research results effect on extraction efficiency of Zr(IV), including: with 0.35 M H2SO4 for E = 73.26%; with Vo/Va = 1/1, E = 73.26%; contact time and equilibrium separation time of two phases were 20 minutes, E = 73.26%; with 0.25 M Na2SO4, that the best for the extraction efficiency of Zr(IV). Special, we introducted some characteristics of the extraction system Zr - H2SO4 - CTAB, that were: built extraction isotherms of Zr(IV) at concentrations of H2SO4 (0.15 - 1.0 M); according the Mc Cable-Thiele plot with Vo/Va = 1/1 the degrees of the theory extraction of Zr(IV) were 4 and Vo/Va = 2/1 were 2; extracts 96.21% of Zr(IV) from Zr(IV) 5.10-3 M through 5 times; loading organic of 10-4 M CTAB in carbon tetrachloride was determined to be LO = 0.4491 g/L through 5 times of phases contact.

Pages (from-to) 243-248
Journal TNU Journal of Science and Technology
Volume 225
Issue number 6
Publication status Published - 2020
ISBN 1859-2171