Selective Extraction of Zr(IV) over Hf(IV) from Aqueous Hydrochloric Acid with p-tert-Butylcalix[4]arenediphosphonic Acid
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DOI: 10.1246/bcsj.20190011
Abstract: p-tert-Butylcalix[4]arenediphosphonic acid (L) extracts Zr(IV) and Hf(IV) from aqueous HCl, H2SO4, and H3PO4. In the extraction from aqueous HCl of different concentrations, the percentage of extra... read more here.
Keywords: tert butylcalix; arenediphosphonic acid; extraction aqueous; butylcalix arenediphosphonic ... See more keywords