Application of Innovative Processes for Gold Recovery from Romanian Mining Wastes
| Autor: | Stefano Ubaldini, Igor Povar, Tudor Lupascu, Oxana Spinu, Francesca Trapasso, Daniele Passeri, Serena Carloni, Daniela Guglietta |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, Vol 15, Iss 2, Pp 29-37 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1857-1727 2345-1688 |
| DOI: | 10.19261/cjm.2020.718 |
| Popis: | The application of a new hydrometallurgical process for gold extraction by thiosulphate leaching from Romanian mining wastes, coming from Balan and Deva deposits, was studied. There was obtained 85% of Au extraction after leaching; moreover, an integrated flow-sheet, including recycling of process solution and carbon, was outlined, based on results obtained at a laboratory scale, using a schematic chemical circuit of treatment. Global recovery of the process (leaching-adsorption-desorption-electrodeposition) of about 75-80% of Au was achieved. The developed integrated flow-sheet, allows to recycle the reagents during the process, with a loss of only 5-10%, in particular thiosulphate and alcohol, for each complete circuit of treatment. |
| Databáze: | Directory of Open Access Journals |
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