A simple primary amide for the selective recovery of gold from secondary resources
Abstract
Waste electrical and electronic equipment (WEEE) such as mobile phones contains a plethora of metals of which gold is by far the most valuable. Herein a simple primary amide is described that achieves the selective separation of gold from a mixture of metals typically found in mobile phones by extraction into toluene from an aqueous HCl solution; unlike current processes, reverse phase transfer is achieved simply using water. Phase transfer occurs by dynamic assembly of protonated and neutral amides with [AuCl4]– ions through hydrogen bonding in the organic phase, as shown by EXAFS, mass spectrometry measurements, and computational calculations, and supported by distribution coefficient analysis. In conclusion, the fundamental chemical understanding gained herein should be integral to the development of metal-recovery processes, in particular through the use of dynamic assembly processes to build complexity from simplicity.
- Authors:
-
- Univ. of Edinburgh, Edinburgh (United Kingdom)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1326545
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Angewandte Chemie (International Edition)
- Additional Journal Information:
- Journal Volume: 55; Journal Issue: 40; Journal ID: ISSN 1433-7851
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Doidge, Euan D., Carson, Innis, Tasker, Peter A., Ellis, Ross J., Morrison, Carole A., and Love, Jason B. A simple primary amide for the selective recovery of gold from secondary resources. United States: N. p., 2016.
Web. doi:10.1002/anie.201606113.
Doidge, Euan D., Carson, Innis, Tasker, Peter A., Ellis, Ross J., Morrison, Carole A., & Love, Jason B. A simple primary amide for the selective recovery of gold from secondary resources. United States. https://doi.org/10.1002/anie.201606113
Doidge, Euan D., Carson, Innis, Tasker, Peter A., Ellis, Ross J., Morrison, Carole A., and Love, Jason B. 2016.
"A simple primary amide for the selective recovery of gold from secondary resources". United States. https://doi.org/10.1002/anie.201606113. https://www.osti.gov/servlets/purl/1326545.
@article{osti_1326545,
title = {A simple primary amide for the selective recovery of gold from secondary resources},
author = {Doidge, Euan D. and Carson, Innis and Tasker, Peter A. and Ellis, Ross J. and Morrison, Carole A. and Love, Jason B.},
abstractNote = {Waste electrical and electronic equipment (WEEE) such as mobile phones contains a plethora of metals of which gold is by far the most valuable. Herein a simple primary amide is described that achieves the selective separation of gold from a mixture of metals typically found in mobile phones by extraction into toluene from an aqueous HCl solution; unlike current processes, reverse phase transfer is achieved simply using water. Phase transfer occurs by dynamic assembly of protonated and neutral amides with [AuCl4]– ions through hydrogen bonding in the organic phase, as shown by EXAFS, mass spectrometry measurements, and computational calculations, and supported by distribution coefficient analysis. In conclusion, the fundamental chemical understanding gained herein should be integral to the development of metal-recovery processes, in particular through the use of dynamic assembly processes to build complexity from simplicity.},
doi = {10.1002/anie.201606113},
url = {https://www.osti.gov/biblio/1326545},
journal = {Angewandte Chemie (International Edition)},
issn = {1433-7851},
number = 40,
volume = 55,
place = {United States},
year = {Wed Aug 24 00:00:00 EDT 2016},
month = {Wed Aug 24 00:00:00 EDT 2016}
}
Web of Science
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