Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag
This study presented the recovery of uranium oxide and thorium oxide from aluminothermic slag from the metallurgical processing of columbite – a niobium/tantalum mineral with the presence of U3O8 and ThO2 – from a mining-industrial facility. The methodology consisted of sampling, comminution, and le...
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Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)
2023-05-01
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| Series: | Brazilian Journal of Radiation Sciences |
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| Online Access: | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2165 |
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| author | Vanderlei Vilaça Moura Talita Santos Claubia Pereira |
| author_facet | Vanderlei Vilaça Moura Talita Santos Claubia Pereira |
| author_sort | Vanderlei Vilaça Moura |
| collection | DOAJ |
| description | This study presented the recovery of uranium oxide and thorium oxide from aluminothermic slag from the metallurgical processing of columbite – a niobium/tantalum mineral with the presence of U3O8 and ThO2 – from a mining-industrial facility. The methodology consisted of sampling, comminution, and leaching using sulfuric acid. The head sample showed contents of (1.78 + 0.14) % for U3O8 and (3.66 + 0.04) % for ThO2. The metallurgical recovery reached values above 80% for the uranium oxide and above 70% for the thorium oxide for pH < 1.5 and process time greater than eight hours. |
| format | Article |
| id | doaj-art-289a2a74ce2d4e7380c03cd0e7453827 |
| institution | DOAJ |
| issn | 2319-0612 |
| language | English |
| publishDate | 2023-05-01 |
| publisher | Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) |
| record_format | Article |
| series | Brazilian Journal of Radiation Sciences |
| spelling | doaj-art-289a2a74ce2d4e7380c03cd0e74538272025-08-20T03:13:32ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122023-05-01111A (Suppl.)011710.15392/2319-0612.2023.21651783Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slagVanderlei Vilaça Moura0Talita Santos1Claubia Pereira2UFMG - Escola de Engenharia - Departamento de Engenharia NuclearUFMG - Faculdade de Medicina - MED-DEPTO DE ANATOMIA E IMAGEMUFMG - Escola de Engenharia - Departamento de Engenharia NuclearThis study presented the recovery of uranium oxide and thorium oxide from aluminothermic slag from the metallurgical processing of columbite – a niobium/tantalum mineral with the presence of U3O8 and ThO2 – from a mining-industrial facility. The methodology consisted of sampling, comminution, and leaching using sulfuric acid. The head sample showed contents of (1.78 + 0.14) % for U3O8 and (3.66 + 0.04) % for ThO2. The metallurgical recovery reached values above 80% for the uranium oxide and above 70% for the thorium oxide for pH < 1.5 and process time greater than eight hours.https://bjrs.org.br/revista/index.php/REVISTA/article/view/2165uranium oxidethorium oxidemetallurgical recovery |
| spellingShingle | Vanderlei Vilaça Moura Talita Santos Claubia Pereira Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag Brazilian Journal of Radiation Sciences uranium oxide thorium oxide metallurgical recovery |
| title | Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag |
| title_full | Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag |
| title_fullStr | Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag |
| title_full_unstemmed | Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag |
| title_short | Evaluation of the acid leaching technique for recovery of U3O8 and ThO2 in niobium/tantalum slag |
| title_sort | evaluation of the acid leaching technique for recovery of u3o8 and tho2 in niobium tantalum slag |
| topic | uranium oxide thorium oxide metallurgical recovery |
| url | https://bjrs.org.br/revista/index.php/REVISTA/article/view/2165 |
| work_keys_str_mv | AT vanderleivilacamoura evaluationoftheacidleachingtechniqueforrecoveryofu3o8andtho2inniobiumtantalumslag AT talitasantos evaluationoftheacidleachingtechniqueforrecoveryofu3o8andtho2inniobiumtantalumslag AT claubiapereira evaluationoftheacidleachingtechniqueforrecoveryofu3o8andtho2inniobiumtantalumslag |