Version 1
: Received: 20 February 2024 / Approved: 20 February 2024 / Online: 20 February 2024 (12:38:46 CET)
How to cite:
Alguacil, F.J.; Robla, J.I. Solvent Extraction of Au(III) by 2-ethylhexanol and Kinetic Modelling of the Facilitated Transport Across a Liquid Membrane. Preprints2024, 2024021149. https://doi.org/10.20944/preprints202402.1149.v1
Alguacil, F.J.; Robla, J.I. Solvent Extraction of Au(III) by 2-ethylhexanol and Kinetic Modelling of the Facilitated Transport Across a Liquid Membrane. Preprints 2024, 2024021149. https://doi.org/10.20944/preprints202402.1149.v1
Alguacil, F.J.; Robla, J.I. Solvent Extraction of Au(III) by 2-ethylhexanol and Kinetic Modelling of the Facilitated Transport Across a Liquid Membrane. Preprints2024, 2024021149. https://doi.org/10.20944/preprints202402.1149.v1
APA Style
Alguacil, F.J., & Robla, J.I. (2024). Solvent Extraction of Au(III) by 2-ethylhexanol and Kinetic Modelling of the Facilitated Transport Across a Liquid Membrane. Preprints. https://doi.org/10.20944/preprints202402.1149.v1
Chicago/Turabian Style
Alguacil, F.J. and Jose Ignacio Robla. 2024 "Solvent Extraction of Au(III) by 2-ethylhexanol and Kinetic Modelling of the Facilitated Transport Across a Liquid Membrane" Preprints. https://doi.org/10.20944/preprints202402.1149.v1
Abstract
The solvent extraction of gold(III) by undiluted 2-ethylhexanol or dissolved in toluene from HCl solution has been investigated. The numerical analysis of gold distribution data suggests the formation of HAuCl4·L and HAuCl4·2L (L= 2-ethylhexanol) species in the organic phase with formation constants K11= 38 and K12= 309, respectively. The results derived from gold(III) distribution have been implemented in a solid-supported liquid membrane system. The influence of several variables on gold transport was considered: feed and receiving phases stirring speeds, HCl and gold concentrations in the feed phase and carrier concentration in the membrane phase as well as the presence of base metals (Fe,Cu,Ni) and PGMs in the feed phase. Also, diffusional resistances to mass transfer are estimated. Gold is recovered as zero valent nanoparticles.
Chemistry and Materials Science, Applied Chemistry
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
