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

dc.creatorFreire, Leandro Araujo
dc.creatorLeite, Jos? Yvan Pereira
dc.creatorSilva, Daniel Nunes da
dc.creatorSilva, Bruno Gon?alves da
dc.creatorOliveira, Jos? Carlos Silva
dc.date2020-12-04T12:42:15Z
dc.date2020-12-04T12:42:15Z
dc.date2019-02-03
dc.date.accessioned2023-09-27T14:20:26Z
dc.date.available2023-09-27T14:20:26Z
dc.identifierFREIRE, 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.identifier2448-167X
dc.identifierhttp://memoria.ifrn.edu.br/handle/1044/1884
dc.identifierhttp://dx.doi.org/10.1590/0370-44672018720016
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8921151
dc.descriptionThe 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 ?m, 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.
dc.descriptionThe 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 ?m, 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.
dc.languageeng
dc.publisherInstituto Federal de Educa??o, Ci?ncia e Tecnologia do Rio Grande do Norte
dc.publisherBrasil
dc.publisherNatal - Central
dc.publisherIFRN
dc.relationREM - International Engineering Journal
dc.rightsAcesso Aberto
dc.subjectcentrifugal concentrator
dc.subjectFalcon
dc.subjectchromite
dc.subjecttailings
dc.subjectEngenharia
dc.titleBehavior of the chromite tailings in a centrifugal concentrator (FALCON)
dc.typeArtigo de Peri?dico


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