Behavior of the chromite tailings in a centrifugal concentrator (FALCON)

Detalhes bibliográficos
Autor(a) principal: Freire, Leandro Araujo
Data de Publicação: 2019
Outros Autores: Leite, José Yvan Pereira, Silva, Daniel Nunes da, Silva, Bruno Gonçalves da, Oliveira, José Carlos Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional Memoria (IFRN)
Texto Completo: http://memoria.ifrn.edu.br/handle/1044/1884
http://dx.doi.org/10.1590/0370-44672018720016
Resumo: The application of the centrifugal concentration gains importance in the world scenario, considering the low environmental impact and the concentration of fine particles. Literature does not present articles using centrifugal concentration (Falcon) for chromite. The material used in the tests is the tailings from a Northeastern Brazil concentration plant, which was homogenized in the laboratory. In the process assays, the number of G (25-300 G) and the fluidization water pressure (20-100 kPa) were optimized. The initial tests used a wide range of particle size of 1 kg mass, with the "best results" being for 50 and 100 G at a pressure of 60 and 80 kPa, respectively, where a metallurgical recovery of 25% and grade close to 20% of Cr2O3 were obtained. The amount of mass showed to be a significant variable in the process, being 250 g the ideal for the material used, which obtained considerable recoveries, even though the grade is still low. These results led to a cut at 250 µm, considering that the liberation of the chromite is of the order of 77 %. The best result was with 150 G and fluidization water pressure of 60 kPa for a metallurgical recovery of 72% and a grade of 28% Cr2O3.
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spelling 2020-12-04T12:42:15Z2020-12-04T12:42:15Z2019-02-03FREIRE, L. A.; LEITE, J. Y. P.; SILVA, D. N.; SILVA, B. G.; OLIVEIRA, J. C. S. Behavior of the chromite tailings in a centrifugal concentrator (FALCON). REM - International Engineering Journal, v. 72, n. 1, pp. 147-152, jan./mar. 2019.2448-167Xhttp://memoria.ifrn.edu.br/handle/1044/1884http://dx.doi.org/10.1590/0370-44672018720016The application of the centrifugal concentration gains importance in the world scenario, considering the low environmental impact and the concentration of fine particles. Literature does not present articles using centrifugal concentration (Falcon) for chromite. The material used in the tests is the tailings from a Northeastern Brazil concentration plant, which was homogenized in the laboratory. In the process assays, the number of G (25-300 G) and the fluidization water pressure (20-100 kPa) were optimized. The initial tests used a wide range of particle size of 1 kg mass, with the "best results" being for 50 and 100 G at a pressure of 60 and 80 kPa, respectively, where a metallurgical recovery of 25% and grade close to 20% of Cr2O3 were obtained. The amount of mass showed to be a significant variable in the process, being 250 g the ideal for the material used, which obtained considerable recoveries, even though the grade is still low. These results led to a cut at 250 µm, considering that the liberation of the chromite is of the order of 77 %. The best result was with 150 G and fluidization water pressure of 60 kPa for a metallurgical recovery of 72% and a grade of 28% Cr2O3.The application of the centrifugal concentration gains importance in the world scenario, considering the low environmental impact and the concentration of fine particles. Literature does not present articles using centrifugal concentration (Falcon) for chromite. The material used in the tests is the tailings from a Northeastern Brazil concentration plant, which was homogenized in the laboratory. In the process assays, the number of G (25-300 G) and the fluidization water pressure (20-100 kPa) were optimized. The initial tests used a wide range of particle size of 1 kg mass, with the "best results" being for 50 and 100 G at a pressure of 60 and 80 kPa, respectively, where a metallurgical recovery of 25% and grade close to 20% of Cr2O3 were obtained. The amount of mass showed to be a significant variable in the process, being 250 g the ideal for the material used, which obtained considerable recoveries, even though the grade is still low. These results led to a cut at 250 µm, considering that the liberation of the chromite is of the order of 77 %. The best result was with 150 G and fluidization water pressure of 60 kPa for a metallurgical recovery of 72% and a grade of 28% Cr2O3.Submitted by Jose Yvan Pereira Leite (jyp.leite@ifrn.edu.br) on 2019-02-05T12:33:30Z No. of bitstreams: 1 2448-167X-remi-72-01-0147.pdf: 552440 bytes, checksum: 25c24cd6f882127e9036de873356ad63 (MD5)Approved for entry into archive by Vanessa Oliveira de Macedo Cavalcanti (vanessa.cavalcanti@ifrn.edu.br) on 2020-12-04T12:42:15Z (GMT) No. of bitstreams: 1 2448-167X-remi-72-01-0147.pdf: 552440 bytes, checksum: 25c24cd6f882127e9036de873356ad63 (MD5)Made available in DSpace on 2020-12-04T12:42:15Z (GMT). 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dc.title.pt_BR.fl_str_mv Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
title Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
spellingShingle Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
Freire, Leandro Araujo
Engenharia
centrifugal concentrator
Falcon
chromite
tailings
title_short Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
title_full Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
title_fullStr Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
title_full_unstemmed Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
title_sort Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
author Freire, Leandro Araujo
author_facet Freire, Leandro Araujo
Leite, José Yvan Pereira
Silva, Daniel Nunes da
Silva, Bruno Gonçalves da
Oliveira, José Carlos Silva
author_role author
author2 Leite, José Yvan Pereira
Silva, Daniel Nunes da
Silva, Bruno Gonçalves da
Oliveira, José Carlos Silva
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Freire, Leandro Araujo
Leite, José Yvan Pereira
Silva, Daniel Nunes da
Silva, Bruno Gonçalves da
Oliveira, José Carlos Silva
dc.subject.cnpq.fl_str_mv Engenharia
topic Engenharia
centrifugal concentrator
Falcon
chromite
tailings
dc.subject.por.fl_str_mv centrifugal concentrator
Falcon
chromite
tailings
description The application of the centrifugal concentration gains importance in the world scenario, considering the low environmental impact and the concentration of fine particles. Literature does not present articles using centrifugal concentration (Falcon) for chromite. The material used in the tests is the tailings from a Northeastern Brazil concentration plant, which was homogenized in the laboratory. In the process assays, the number of G (25-300 G) and the fluidization water pressure (20-100 kPa) were optimized. The initial tests used a wide range of particle size of 1 kg mass, with the "best results" being for 50 and 100 G at a pressure of 60 and 80 kPa, respectively, where a metallurgical recovery of 25% and grade close to 20% of Cr2O3 were obtained. The amount of mass showed to be a significant variable in the process, being 250 g the ideal for the material used, which obtained considerable recoveries, even though the grade is still low. These results led to a cut at 250 µm, considering that the liberation of the chromite is of the order of 77 %. The best result was with 150 G and fluidization water pressure of 60 kPa for a metallurgical recovery of 72% and a grade of 28% Cr2O3.
publishDate 2019
dc.date.issued.fl_str_mv 2019-02-03
dc.date.accessioned.fl_str_mv 2020-12-04T12:42:15Z
dc.date.available.fl_str_mv 2020-12-04T12:42:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv FREIRE, L. A.; LEITE, J. Y. P.; SILVA, D. N.; SILVA, B. G.; OLIVEIRA, J. C. S. Behavior of the chromite tailings in a centrifugal concentrator (FALCON). REM - International Engineering Journal, v. 72, n. 1, pp. 147-152, jan./mar. 2019.
dc.identifier.uri.fl_str_mv http://memoria.ifrn.edu.br/handle/1044/1884
dc.identifier.issn.pt_BR.fl_str_mv 2448-167X
dc.identifier.doi.pt_BR.fl_str_mv http://dx.doi.org/10.1590/0370-44672018720016
identifier_str_mv FREIRE, L. A.; LEITE, J. Y. P.; SILVA, D. N.; SILVA, B. G.; OLIVEIRA, J. C. S. Behavior of the chromite tailings in a centrifugal concentrator (FALCON). REM - International Engineering Journal, v. 72, n. 1, pp. 147-152, jan./mar. 2019.
2448-167X
url http://memoria.ifrn.edu.br/handle/1044/1884
http://dx.doi.org/10.1590/0370-44672018720016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv REM - International Engineering Journal
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
dc.publisher.initials.fl_str_mv IFRN
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Natal - Central
publisher.none.fl_str_mv Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte
dc.source.none.fl_str_mv reponame:Repositório Institucional Memoria (IFRN)
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instacron:IFRN
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