| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Rare Metal Extraction and Processing
|
| Presentation Title |
Physicochemistry in Service of Process Design: Case of Uranium Recovery by Liquid-liquid Extraction |
| Author(s) |
Alexandre Chagnes |
| On-Site Speaker (Planned) |
Alexandre Chagnes |
| Abstract Scope |
Although solvent extraction seems to be easy to operate, its implementation at industrial scale can be difficult and costly. In order to reduce capital and operation expenditures, process optimization is mandatory. It consists in using appropriate equipment, flowsheet and parameters optimization in order to reduce energy and reactive consumption, effluent generation, etc. For this goal, it is relevant to understand the physicochemistry involved in the processes to get them more flexible. For the sake of illustration, this conference will address two cases: (i) the comprehension of the physicochemical phenomena responsible for the chemical degradation of the extraction solvent during liquid-liquid extraction of uranium from acidic sulfate media in order to keep high uranium extraction efficiency; (ii) the development of a new extractant for the recovery of uranium from wet phosphoric acid by means of a rational approach combining modelling of uranium extraction and investigation of uranium speciation in extraction solvent. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Hydrometallurgy, Process Technology, Other |