Study of aluminothermic slag leaching for uranium and thorium recovery
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFMG |
Texto Completo: | https://doi.org/10.15392/2319-0612.2022.2002 http://hdl.handle.net/1843/60678 https://orcid.org/0000-0003-1181-511X https://orcid.org/0000-0001-5999-9961 |
Resumo: | The need for energy by modern society is increasing. On the other hand, it is necessary to reduce costs and environmental impact. In this perspective, the recovery of uranium present in industrial waste from the processing of naturally occurring radioactive material (NORM) appears as a possible complement to the mining stage of the Nuclear Fuel Cycle. NORM's uranium recovery can reduce environmental liabilities and mineral processing costs (especially blasting, crushing, and grinding). The industrial residue of this study, a type of aluminothermic slag, comes from the metallurgical processing of columbite (niobium and tantalum mineral) and has a content, measured by X-ray fluorescence, of 1.78% of U3O8. This content is higher, for example than those found in Lagoa Real-BA (0.2% in rock) and Santa Quitéria-CE (0.1% in rock). Another material that will be studied is ThO2, which is also present in the slag with a content, measured by X-ray fluorescence, around 3.66%. The process parameters analyzed were pH of the solution, time, granulometry and percentage of solids. The metallurgical recovery of U3O8 reached a maximum value of 71,3% with pH = 1, time of 8 hours, 65 % percentage of solids, and 200 µm of granulometry. The metallurgical recovery of ThO2 reached a maximum value of 69,7% with pH = 1, time of 8 hours, 65 % percentage of solids, and 200 µm of granulometry. |
id |
UFMG_8e1404da4d3913a6e2aaf1a5444288d2 |
---|---|
oai_identifier_str |
oai:repositorio.ufmg.br:1843/60678 |
network_acronym_str |
UFMG |
network_name_str |
Repositório Institucional da UFMG |
repository_id_str |
|
spelling |
2023-11-08T22:22:20Z2023-11-08T22:22:20Z2022103Bhttps://doi.org/10.15392/2319-0612.2022.20022319-0612http://hdl.handle.net/1843/60678https://orcid.org/0000-0003-1181-511Xhttps://orcid.org/0000-0001-5999-9961The need for energy by modern society is increasing. On the other hand, it is necessary to reduce costs and environmental impact. In this perspective, the recovery of uranium present in industrial waste from the processing of naturally occurring radioactive material (NORM) appears as a possible complement to the mining stage of the Nuclear Fuel Cycle. NORM's uranium recovery can reduce environmental liabilities and mineral processing costs (especially blasting, crushing, and grinding). The industrial residue of this study, a type of aluminothermic slag, comes from the metallurgical processing of columbite (niobium and tantalum mineral) and has a content, measured by X-ray fluorescence, of 1.78% of U3O8. This content is higher, for example than those found in Lagoa Real-BA (0.2% in rock) and Santa Quitéria-CE (0.1% in rock). Another material that will be studied is ThO2, which is also present in the slag with a content, measured by X-ray fluorescence, around 3.66%. The process parameters analyzed were pH of the solution, time, granulometry and percentage of solids. The metallurgical recovery of U3O8 reached a maximum value of 71,3% with pH = 1, time of 8 hours, 65 % percentage of solids, and 200 µm of granulometry. The metallurgical recovery of ThO2 reached a maximum value of 69,7% with pH = 1, time of 8 hours, 65 % percentage of solids, and 200 µm of granulometry.A necessidade de energia pela sociedade moderna está aumentando. Por outro lado, é necessário reduzir custos e impacto ambiental. Nessa perspectiva, a recuperação do urânio presente nos resíduos industriais provenientes do processamento de material radioativo natural (NORM) surge como um possível complemento à etapa de mineração do Ciclo do Combustível Nuclear. A recuperação de urânio da NORM pode reduzir passivos ambientais e custos de processamento mineral (especialmente detonação, britagem e moagem). O resíduo industrial deste estudo, uma espécie de escória aluminotérmica, é proveniente do processamento metalúrgico da columbita (mineral nióbio e tântalo) e possui teor, medido por fluorescência de raios X, de 1,78% de U3O8. Esse teor é superior, por exemplo, aos encontrados em Lagoa Real-BA (0,2% em rocha) e Santa Quitéria-CE (0,1% em rocha). Outro material que será estudado é o ThO2, que também está presente na escória com teor, medido por fluorescência de raios X, em torno de 3,66%. Os parâmetros de processo analisados foram pH da solução, tempo, granulometria e percentual de sólidos. A recuperação metalúrgica do U3O8 atingiu valor máximo de 71,3% com pH = 1, tempo de 8 horas, 65% de percentual de sólidos e 200 µm de granulometria. A recuperação metalúrgica de ThO2 atingiu valor máximo de 69,7% com pH = 1, tempo de 8 horas, 65% de percentual de sólidos e 200 µm de granulometria.CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível SuperiorengUniversidade Federal de Minas GeraisUFMGBrasilENG - DEPARTAMENTO DE ENGENHARIA NUCLEARBrazilian journal of radiation sciencesCombustiveis nuclearesUranioTorioLixiviaçãoUranium oxideThorium oxideLeachingStudy of aluminothermic slag leaching for uranium and thorium recoveryEstudo de lixiviação de escória aluminotérmica para recuperação de urânio e tórioinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://bjrs.org.br/revista/index.php/REVISTA/article/view/2002Vanderlei Vilaça MouraTalita SantosClaubia Pereira Bezerra Limaapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/60678/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALStudy of aluminothermic slag leaching for uranium and thorium recovery.pdfStudy of aluminothermic slag leaching for uranium and thorium recovery.pdfapplication/pdf512247https://repositorio.ufmg.br/bitstream/1843/60678/2/Study%20of%20aluminothermic%20slag%20leaching%20for%20uranium%20and%20thorium%20recovery.pdf4cd7a428fbd1a0b487293983a8d46e27MD521843/606782023-11-08 19:22:21.298oai:repositorio.ufmg.br:1843/60678Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-11-08T22:22:21Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
dc.title.pt_BR.fl_str_mv |
Study of aluminothermic slag leaching for uranium and thorium recovery |
dc.title.alternative.pt_BR.fl_str_mv |
Estudo de lixiviação de escória aluminotérmica para recuperação de urânio e tório |
title |
Study of aluminothermic slag leaching for uranium and thorium recovery |
spellingShingle |
Study of aluminothermic slag leaching for uranium and thorium recovery Vanderlei Vilaça Moura Uranium oxide Thorium oxide Leaching Combustiveis nucleares Uranio Torio Lixiviação |
title_short |
Study of aluminothermic slag leaching for uranium and thorium recovery |
title_full |
Study of aluminothermic slag leaching for uranium and thorium recovery |
title_fullStr |
Study of aluminothermic slag leaching for uranium and thorium recovery |
title_full_unstemmed |
Study of aluminothermic slag leaching for uranium and thorium recovery |
title_sort |
Study of aluminothermic slag leaching for uranium and thorium recovery |
author |
Vanderlei Vilaça Moura |
author_facet |
Vanderlei Vilaça Moura Talita Santos Claubia Pereira Bezerra Lima |
author_role |
author |
author2 |
Talita Santos Claubia Pereira Bezerra Lima |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Vanderlei Vilaça Moura Talita Santos Claubia Pereira Bezerra Lima |
dc.subject.por.fl_str_mv |
Uranium oxide Thorium oxide Leaching |
topic |
Uranium oxide Thorium oxide Leaching Combustiveis nucleares Uranio Torio Lixiviação |
dc.subject.other.pt_BR.fl_str_mv |
Combustiveis nucleares Uranio Torio Lixiviação |
description |
The need for energy by modern society is increasing. On the other hand, it is necessary to reduce costs and environmental impact. In this perspective, the recovery of uranium present in industrial waste from the processing of naturally occurring radioactive material (NORM) appears as a possible complement to the mining stage of the Nuclear Fuel Cycle. NORM's uranium recovery can reduce environmental liabilities and mineral processing costs (especially blasting, crushing, and grinding). The industrial residue of this study, a type of aluminothermic slag, comes from the metallurgical processing of columbite (niobium and tantalum mineral) and has a content, measured by X-ray fluorescence, of 1.78% of U3O8. This content is higher, for example than those found in Lagoa Real-BA (0.2% in rock) and Santa Quitéria-CE (0.1% in rock). Another material that will be studied is ThO2, which is also present in the slag with a content, measured by X-ray fluorescence, around 3.66%. The process parameters analyzed were pH of the solution, time, granulometry and percentage of solids. The metallurgical recovery of U3O8 reached a maximum value of 71,3% with pH = 1, time of 8 hours, 65 % percentage of solids, and 200 µm of granulometry. The metallurgical recovery of ThO2 reached a maximum value of 69,7% with pH = 1, time of 8 hours, 65 % percentage of solids, and 200 µm of granulometry. |
publishDate |
2022 |
dc.date.issued.fl_str_mv |
2022 |
dc.date.accessioned.fl_str_mv |
2023-11-08T22:22:20Z |
dc.date.available.fl_str_mv |
2023-11-08T22:22:20Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1843/60678 |
dc.identifier.doi.pt_BR.fl_str_mv |
https://doi.org/10.15392/2319-0612.2022.2002 |
dc.identifier.issn.pt_BR.fl_str_mv |
2319-0612 |
dc.identifier.orcid.pt_BR.fl_str_mv |
https://orcid.org/0000-0003-1181-511X https://orcid.org/0000-0001-5999-9961 |
url |
https://doi.org/10.15392/2319-0612.2022.2002 http://hdl.handle.net/1843/60678 https://orcid.org/0000-0003-1181-511X https://orcid.org/0000-0001-5999-9961 |
identifier_str_mv |
2319-0612 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Brazilian journal of radiation sciences |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.publisher.initials.fl_str_mv |
UFMG |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
ENG - DEPARTAMENTO DE ENGENHARIA NUCLEAR |
publisher.none.fl_str_mv |
Universidade Federal de Minas Gerais |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFMG instname:Universidade Federal de Minas Gerais (UFMG) instacron:UFMG |
instname_str |
Universidade Federal de Minas Gerais (UFMG) |
instacron_str |
UFMG |
institution |
UFMG |
reponame_str |
Repositório Institucional da UFMG |
collection |
Repositório Institucional da UFMG |
bitstream.url.fl_str_mv |
https://repositorio.ufmg.br/bitstream/1843/60678/1/License.txt https://repositorio.ufmg.br/bitstream/1843/60678/2/Study%20of%20aluminothermic%20slag%20leaching%20for%20uranium%20and%20thorium%20recovery.pdf |
bitstream.checksum.fl_str_mv |
fa505098d172de0bc8864fc1287ffe22 4cd7a428fbd1a0b487293983a8d46e27 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG) |
repository.mail.fl_str_mv |
|
_version_ |
1803589564887990272 |