Abstract

The extraction of Hg(II) from hydrochloric acid solutions has been investigated using Cyanex 471X in xylene as an extractant. The results demonstrate that Hg(II) is extracted into xylene as HgCl 2·4L (L represents the extractant). The effect of the nature of the diluent on the extraction of Hg(II) with Cyanex 471X has been studied and correlated with the dielectric constant. The loading capacity of the extractant was also determined. IR spectral studies of the extracted complex were used to further clarify the nature of the extracted complex. The potential of the extractant for decontaminating mercury from the brine sludge of a Chlor-Alkali plant has been assessed.

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