The solvent extraction system Au(III) — HCl-Cyanex 471X
作者： S. Martínez , P. Navarro , A.M. Sastre , F.J. Alguacil
DOI: 10.1016/0304-386X(96)00026-6
关键词:
摘要: Abstract The effectiveness of Cyanex 471X as extractant gold(III) from hydrochloric acid solutions is demonstrated. extraction system endothermic and experimental variables, such concentration, organic diluent influence it. Maximum gold obtained in the range 1–3 M HCl concentrations. Equilibrium loading isotherms showed that [Cyanex 47lX]/[Au (III)] molar relationship phase near l.5, which probable stoichiometry extracted species defined by HAUCl 4 L (log K ext ° = 3.79) HAUCI 2 6.34), representing extractant. seems to be suitable for selective gold. Stripping metal can only accomplished using sodium thiosulphate solutions, corresponding reaction also being endothermic.
elsevier.com
sci-hub.se 参考文章(10)
Jan Rydberg, Claude Musikas, Gregory R. Choppin, Principles and practices of solvent extraction M. Dekker. ,(1992)
Iain House, John Marsden, The chemistry of gold extraction ,(1969)
I Longden, NM Patel, JR Thornback, JH Miles, None, THE EXTRACTION OF RHODIUM FROM AQUEOUS HITRIC ACID BY ORGANOPHOSPHINE SULPHIDES Solvent Extraction and Ion Exchange. ,vol. 4, pp. 421- 433 ,(1986) , 10.1080/07366298608917875
F.J. Alguacil, F.A. López, The extraction of mineral acids by the phosphine oxide Cyanex 923 Hydrometallurgy. ,vol. 42, pp. 245- 255 ,(1996) , 10.1016/0304-386X(95)00101-L
I. Villaescusa, N. Miralles, J. de Pablo, V. Salvado, A.M. Sastre, EXTRACTION OF GOLD(III) FROM HYDROCHLORIC ACID SOLUTIONS BY Tri-n-DODECYLAMMONIUM CHLORIDE IN TOLUENE. ESTIMATION OF THE INTERACTION COEFFICIENT BETWEEN AuCl4 and H+. Solvent Extraction and Ion Exchange. ,vol. 11, pp. 613- 626 ,(1993) , 10.1080/07366299308918177
S. Martínez, A. Sastre, F.J. Alguacil, Gold extraction equilibrium in the system Cyanex 921-HClAu(III) Hydrometallurgy. ,vol. 40, pp. 77- 88 ,(1996) , 10.1016/S0304-386X(97)00014-5
Michael B. Mooiman, Jan D. Miller, The chemistry of gold solvent extraction from alkaline cyanide solution by solvating extractants Hydrometallurgy. ,vol. 27, pp. 29- 46 ,(1991) , 10.1016/0304-386X(91)90076-X
F.J. Alguacil, C. Caravaca, Study of gold (III)-HCl-amine Alamine 304 extraction equilibrium system Hydrometallurgy. ,vol. 34, pp. 91- 98 ,(1993) , 10.1016/0304-386X(93)90083-P
V Salvadó, M Hidalgo, A Masana, M Mufioz, M Valiente, M Muhammed, None, EXTRACTION OF GOLD fill) FROM HYDROCHLORIC ACID SOLUTIONS BY TRI-ISOBUTYL PHOSPHINE SULFIDE IN TOLUENE. Solvent Extraction and Ion Exchange. ,vol. 8, pp. 491- 502 ,(1990) , 10.1080/07366299008918013
Djiet Hay Liem, Sherril D. Christian, Just Grundnes, Stephen R. Roach, Jan E. Engebretsen, L. Ehrenberg, High-speed Computers as a Supplement to Graphical Methods. 12. Application of LETAGROP to Data for Liquid-liquid Distribution Equilibria. Acta Chemica Scandinavica. ,vol. 25, pp. 1521- 1534 ,(1971) , 10.3891/ACTA.CHEM.SCAND.25-1521