HYDROFLUORIC ACID EXTRACTION BY TBP AND BY AMINES: I. A CRITICAL REVIEW OF THE HF-H2O-EXTRACTANT SYSTEM
- 1 January 1989
- journal article
- review article
- Published by Taylor & Francis in Solvent Extraction and Ion Exchange
- Vol. 7 (6) , 951-969
- https://doi.org/10.1080/07360298908962348
Abstract
Literature on HF extraction by amines and by tributyl phosphate is critically reviewed. The system amine-HF-H2O shows an interesting feature concerning properties such as distribution curves compared to those for extraction of other acids, similarity to extraction by TBP, water extraction, selectivity, effect of amine type and dilution and diluent effect These properties sharply change (or even invert) when HF/amine molar ratio exceeds 2.Keywords
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