Selectivity Coefficients for Ag(CN)2−and Au(CN)2−from Continuous Foam Fractionation with a Quaternary Ammonium Surfactant
- 1 February 1978
- journal article
- research article
- Published by Taylor & Francis Ltd in Separation Science and Technology
- Vol. 13 (2), 127-139
- https://doi.org/10.1080/01496397808057095
Abstract
An experimental study is presented of the continuous flow, foam fractionation of cyanide complex anions: Ag(CN)2 − and Au(CN)2 − from 1.0 to 8.0 × 10−5 M aqueous solutions. The quaternary ammonium surfactant, hexadecyltriethylammonium iodide, is modeled as a soluble ion exchanger. The selectivity coefficients were determined for Ag(CN)2 − vs I− equal to 2.71, and for Au(CN)2 − vs I− equal to 10.85. These coefficients are discussed in terms of the physicochemical properties of cyanide complex anions.Keywords
This publication has 10 references indexed in Scilit:
- Foam fractionation of cyanide complex anions of Zn(II), Cd(II), Hg(II) and Au(III)Journal of Inorganic and Nuclear Chemistry, 1976
- Foam separations: A reviewThe Chemical Engineering Journal, 1975
- Anion exchange selectivity coefficients from the continuous foam fractionation of a quaternary ammonium surfactantJournal of Inorganic and Nuclear Chemistry, 1974
- A cationic surfactant as a soluble ion exchanger in the continuous foam fractionation of nitrate; iodide, and bromideThe Canadian Journal of Chemical Engineering, 1973
- Foam Separation MethodsSeparation and Purification Methods, 1972
- Foam Separation of Anions: Hydration, Entropy, and SelectivityAnalytical Letters, 1971
- The Relative Adsorbability of Counterions at the Charged InterfacePublished by American Chemical Society (ACS) ,1968
- The identification and determination of cationic surface-active agents with sodium tetraphenylboronThe Analyst, 1965
- 48. Adsorption of gold from cyanide solutions by anionic resinsJournal of the Chemical Society, 1958
- Electronegativities of the ElementsThe Journal of Chemical Physics, 1956