SOLVENT EXTRATION OF ZIRCONIUM(IV) IN SUNFURIC ACID SOLUTION BY HIGH AMINE CETYL TRIMETHYL AMMONI BROMIDE/CCl4
Overview
Abstract:
The paper investigated results effect of the
conditions on absorbance of ZrXO, that: the optimal absorption wavelength was
535nm, the optimal concentration of H2SO4 was 0,35M, the
volume ratio of 5.10-3M Zr and 5.10-3M XO was
5.0/5.2. Established a
calibration curve to determine concentration of Zr(IV) at 535nm in the linear
concentrations range from 10-4 - 5.10-3M. Research
results effect on extraction efficiency of Zr(IV), including: with 0.35M H2SO4
for E = 72.27%; with Vo/Va = 1/1, E = 72.27%; contact time
of two phases and equilibrium separation time of two phases were 20 minutes, E
= 72.27%; [Na2SO4]] = 0.25M, that the best effect on the
extraction efficiency 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 (0.05-1.0M) H2SO4;
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 96.52% of Zr(IV) from Zr(IV) 5.10-3M through 5
times extraction; loading organic (LO) of 10-4M CTAB/CCl4
was determined to be 0.4455 g/L Zr(IV) through 5 times of phases contact.
Pages (from-to) | 35-40 |
Journal | TNU Journal of Science and Technology |
Volume | 12/1 |
Issue number | 157 |
Publication status | Published - 2016 |
ISBN | 1859-2171 |