Behavior of the chromite tailings in a centrifugal concentrator (FALCON)
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
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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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). No. of bitstreams: 1 2448-167X-remi-72-01-0147.pdf: 552440 bytes, checksum: 25c24cd6f882127e9036de873356ad63 (MD5) Previous issue date: 2019-02-03engInstituto Federal de Educação, Ciência e Tecnologia do Rio Grande do NorteIFRNBrasilNatal - CentralREM - International Engineering JournalEngenhariacentrifugal concentratorFalconchromitetailingsBehavior of the chromite tailings in a centrifugal concentrator (FALCON)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7201147152Freire, Leandro AraujoLeite, José Yvan PereiraSilva, Daniel Nunes daSilva, Bruno Gonçalves daOliveira, José Carlos Silvainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional Memoria (IFRN)instname:Instituto Federal do Rio Grande do Norte (IFRN)instacron:IFRNTHUMBNAIL2448-167X-remi-72-01-0147.pdf.jpg2448-167X-remi-72-01-0147.pdf.jpgIM Thumbnailimage/jpeg22822http://localhost:8080/xmlui/bitstream/1044/1884/4/2448-167X-remi-72-01-0147.pdf.jpg5f73fb94d06e98eb5ab0a9d946fc3bd6MD54TEXT2448-167X-remi-72-01-0147.pdf.txt2448-167X-remi-72-01-0147.pdf.txtExtracted texttext/plain17553http://localhost:8080/xmlui/bitstream/1044/1884/3/2448-167X-remi-72-01-0147.pdf.txt9ed2eb0402ee38efec2eda28b41eed41MD53LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://localhost:8080/xmlui/bitstream/1044/1884/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52ORIGINAL2448-167X-remi-72-01-0147.pdf2448-167X-remi-72-01-0147.pdfapplication/pdf552440http://localhost:8080/xmlui/bitstream/1044/1884/1/2448-167X-remi-72-01-0147.pdf25c24cd6f882127e9036de873356ad63MD511044/18842020-12-04 10:00:32.765oai:localhost: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Repositório InstitucionalPUBhttps://memoria.ifrn.edu.br/oai/memoria@ifrn.edu.bropendoar:2020-12-04T13:00:32Repositório Institucional Memoria (IFRN) - Instituto Federal do Rio Grande do Norte (IFRN)false |
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 |
format |
article |
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 |
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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 |
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Instituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte |
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