STUDY OF WATER PROPERTIES DURING Pt(IV) AND Au(III) EXTRACTION BY TRITON N-42 REVERSE MICELLES FROM ACID SULFATE-CHLORIDE SOLUTIONS
T. Y. Podlipskaya, A. I. Bulavchenko, L. A. Sheludyakova
Keywords: hydration (bound) water, bulk (free) water, FT-IR spectroscopy, reverse micelles, Triton N-42, extraction
Pages: 1006-1010
Abstract
FT-IR spectroscopy is used to study the distribution of bulk (free) and hydration (bound) water during the extraction of Pt(IV) and Au(III) from acid sulfate-chloride media by Triton N-42 reverse micelles. The bulk water fraction in Triton N-42 micelles reduces from 44% to 23% with an increase in the sodium sulfate concentration up to 3.5 mol/l in the feed. A decrease in the total concentration of micellar water and bulk water fraction complies well with an increase in the Pt(IV) and Au(III) distribution coefficients and concentration during the extraction by Triton N-42 reverse micelles.
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