Comparison of Cyanex 272 and Cyanex 572 for the separation of Neodymium from a Nd/Tb/Dy mixture by pertraction
| Autor: | S. Pavón, Merve Kutucu, Agustin Fortuny, M. Teresa Coll, Ana Maria Sastre |
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| Rok vydání: | 2017 |
| Předmět: |
General Chemical Engineering
chemistry.chemical_element 02 engineering and technology 010501 environmental sciences 01 natural sciences Neodymium Chloride Inorganic Chemistry Metal Liquid–liquid extraction medicine Waste Management and Disposal 0105 earth and related environmental sciences Alternative methods Renewable Energy Sustainability and the Environment Organic Chemistry 021001 nanoscience & nanotechnology Pollution Fuel Technology chemistry visual_art visual_art.visual_art_medium 0210 nano-technology Biotechnology Nuclear chemistry medicine.drug |
| Zdroj: | Journal of Chemical Technology & Biotechnology. 93:2152-2159 |
| ISSN: | 0268-2575 |
| DOI: | 10.1002/jctb.5458 |
| Popis: | BACKGROUND Recovering Nd(III) from waste magnets is an alternative method to satisfy the increasing demand for this metal. For this reason, the separation of Nd from a mixture containing Nd/Tb/Dy in chloride media using Cyanex 272 and Cyanex 572 has been evaluated. RESULTS Using Cyanex 272 and Cyanex 572, the metals are transported in the order Dy(III) > Tb(III) > > Nd(III) in all conditions studied. The optimum feed conditions to achieve Nd(III) separation are: Cyanex 272: pH 2 and Cyanex 572: pH 1.5 with 1.2 mol L-1 HCl as a receiving agent for both carriers. CONCLUSION The results obtained suggest that Cyanex 572 is a better carrier than Cyanex 272 for separating Nd(III) from a mixture containing Nd/Tb/Dy. © 2017 Society of Chemical Industry |
| Databáze: | OpenAIRE |
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