Recovery of cobalt from dilute aqueous solutions using activated carbon-alginate composite spheres impregnated with Cyanex 272
| Autor: | Stijn Van Roosendael, Kenny Wyns, Steven Mullens, Joris Roosen, Bart Michielsen, Bieke Onghena, Koen Binnemans |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
inorganic chemicals
ADSORPTION General Chemical Engineering Chemistry Multidisciplinary SOLVENT-EXTRACTION NICKEL chemistry.chemical_element 02 engineering and technology Manganese 010402 general chemistry LEACH SOLUTIONS 01 natural sciences METHYLENE-BLUE Adsorption CALCIUM-ALGINATE medicine LITHIUM-ION BATTERIES Aqueous solution Science & Technology Chemistry General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Nickel Petrochemical BEADS Physical Sciences SEPARATION 0210 nano-technology METAL VALUES Cobalt Nuclear chemistry Activated carbon medicine.drug BET theory |
| Popis: | A novel adsorbent was designed for selective recovery of cobalt(ii) from synthetic binary cobalt(ii)-nickel(ii) and cobalt(ii)-manganese(ii) solutions, a synthetic multi-element solution and a real aqueous waste stream from the petrochemical sector. The adsorbent consisted of shaped activated carbon-alginate spheres impregnated with Cyanex 272. The synthesis was followed by characterisation using SEM, infrared spectroscopy, BET analysis and elemental analysis. Good selectivity for cobalt(ii) over nickel(ii) could be achieved during adsorption, while this was not the case for cobalt(ii) over manganese(ii). Cobalt(ii) and manganese(ii) were therefore fully adsorbed and stripped using a dilute sulphuric acid solution. The adsorbent was shown to be reusable in a column setup. Finally, the adsorbent material was used for the purification of a real aqueous waste stream from the petrochemical sector. ispartof: RSC ADVANCES vol:9 issue:33 pages:18734-18746 ispartof: location:England status: published |
| Databáze: | OpenAIRE |
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