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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.12 [2005] >
IJCT Vol.12(4) [July 2005] >
| Title: | Extraction of Zn(II) from sulphate media using organophosphine oxides, cyanex-923 and cyanex-925 |
| Authors: | Pawar, S D
Dhadke, P M |
| Keywords: | Zn(II)
extraction
cyanex-923
cyanex-925
stripping |
| Issue Date: | Jul-2005 |
| Publisher: | CSIR |
| IPC Code: | C22F1/053 |
| Abstract: | Extraction
of Zn(II) with phosphine oxides cyanex-923 and cyanex-925 from sulphate
solution is described. Extraction was found to be quantitative with 0.01M
cyanex-923 and 0.03 M cyanex-925 in toluene in the pH range 8.0-10.0. From
organic phase of cyanex-923 and cyanex-925, Zn(II) was stripped out with 1.0 M
HCl and 1.0 M H2SO4 respectively and determined
spectrophotometrically. Effect of various parameters such as reagent
concentration, equilibration period, effect of various diluents and diverse
ions on the extraction of Zn(II) was also studied. The stoichiometry of the
extracted species was determined on the basis of slope analysis method. |
| Page(s): | 419-424 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Source: | IJCT Vol.12(4) [July 2005]
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