Non-dispersive selective extraction of germanium from fly ash leachates using membrane-based processes
Non-dispersive selective extraction of Ge(IV) tartrates was carried out from simulated fly ash solutions containing heavy metals through supported liquid membranes (SLM). The optimum transport was obtained using a PTFE membrane containing Alamine 336 5%v/v in the condition of tartaric acid 2.76 mmol...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/130638 |
| Acceso en línea: | https://hdl.handle.net/2117/130638 https://dx.doi.org/10.1080/01496395.2018.1555170 |
| Access Level: | acceso abierto |
| Palabra clave: | Extraction (Chemistry) Liquid membranes Germanium Supported liquid membrane Non-dispersive extraction Fly ash Heavy metals Extracció (Química) Membranes líquides Germani Àrees temàtiques de la UPC::Enginyeria química |
| Sumario: | Non-dispersive selective extraction of Ge(IV) tartrates was carried out from simulated fly ash solutions containing heavy metals through supported liquid membranes (SLM). The optimum transport was obtained using a PTFE membrane containing Alamine 336 5%v/v in the condition of tartaric acid 2.76 mmol/L and HCl 1 mol/L in feed and strip phases, respectively. Under this condition, a hollow fiber (HF) SLM experiment was conducted. The results showed that this system could transport germanium from the feed to the strip phase so much faster than the flat sheet (FS) SLM system. The rate of transport through HFSLMs is comparable to dispersive extractions. |
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