Comparative study of the main flotation frothers using a new HYDROMESS adapted technique
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional Memoria (IFRN) |
Texto Completo: | http://memoria.ifrn.edu.br/handle/1044/354 |
Resumo: | Stability of bubble size in the pulp zone and froth control is an important parameter for a successful flotation process. The present study compares the action of the main frothers in terms of: mean bubble size in the pulp zone, froth stability, surface-tension-lowering ability and reagent participation in flotation of a naturally hydrophobic mineral. Bubble size was determined using a new technique adapted from HYDROMESS, a device designed to measure drop size. The remaining indicators were obtained by determining surface tension and conducting flotation tests with the addition of hydrophobic (graphite) and hydrophilic (calcite) particles. The results indicate that methyl isobutyl carbinol (MIBC) is the most efficient frother in controlling coalescence, with critical coalescence concentration (CCC) reached at 20 ppm. Moreover, this frother has greater potential for selective action, since it increased calcite entrainment by only 2.3% at a concentration of 30 ppm. In flotation tests with a sample of graphite, MIBC produced higher recoveries. |
id |
IFRN_586c9d9916f28e832650e62a94cc4c83 |
---|---|
oai_identifier_str |
oai:localhost:1044/354 |
network_acronym_str |
IFRN |
network_name_str |
Repositório Institucional Memoria (IFRN) |
repository_id_str |
|
spelling |
2015-11-04T03:04:50Z2014-032015-11-04T03:04:50Z2014-03Veras, Moacir Medeiros, Baltar, Carlos Adolpho Magalhães, Paulo, João Bosco de Araújo, & Leite, José Yvan Pereira. (2014). Comparative study of the main flotation frothers using a new HYDROMESS adapted technique. Rem: Revista Escola de Minas, 67(1), 87-92. Retrieved October 29, 2015, from http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000100013&lng=en&tlng=en.0370-4467http://memoria.ifrn.edu.br/handle/1044/354Stability of bubble size in the pulp zone and froth control is an important parameter for a successful flotation process. The present study compares the action of the main frothers in terms of: mean bubble size in the pulp zone, froth stability, surface-tension-lowering ability and reagent participation in flotation of a naturally hydrophobic mineral. Bubble size was determined using a new technique adapted from HYDROMESS, a device designed to measure drop size. The remaining indicators were obtained by determining surface tension and conducting flotation tests with the addition of hydrophobic (graphite) and hydrophilic (calcite) particles. The results indicate that methyl isobutyl carbinol (MIBC) is the most efficient frother in controlling coalescence, with critical coalescence concentration (CCC) reached at 20 ppm. Moreover, this frother has greater potential for selective action, since it increased calcite entrainment by only 2.3% at a concentration of 30 ppm. In flotation tests with a sample of graphite, MIBC produced higher recoveries.Stability of bubble size in the pulp zone and froth control is an important parameter for a successful flotation process. The present study compares the action of the main frothers in terms of: mean bubble size in the pulp zone, froth stability, surface-tension-lowering ability and reagent participation in flotation of a naturally hydrophobic mineral. Bubble size was determined using a new technique adapted from HYDROMESS, a device designed to measure drop size. The remaining indicators were obtained by determining surface tension and conducting flotation tests with the addition of hydrophobic (graphite) and hydrophilic (calcite) particles. The results indicate that methyl isobutyl carbinol (MIBC) is the most efficient frother in controlling coalescence, with critical coalescence concentration (CCC) reached at 20 ppm. Moreover, this frother has greater potential for selective action, since it increased calcite entrainment by only 2.3% at a concentration of 30 ppm. In flotation tests with a sample of graphite, MIBC produced higher recoveries.Submitted by Jose Yvan Pereira Leite (jyp.leite@ifrn.edu.br) on 2015-11-04T03:03:43Z No. of bitstreams: 1 v67n1a13.pdf: 2664387 bytes, checksum: c9cf9b1fdf9df2d2a492bd43f63e029f (MD5)Approved for entry into archive by Jose Yvan Pereira Leite (jyp.leite@ifrn.edu.br) on 2015-11-04T03:04:50Z (GMT) No. of bitstreams: 1 v67n1a13.pdf: 2664387 bytes, checksum: c9cf9b1fdf9df2d2a492bd43f63e029f (MD5)Made available in DSpace on 2015-11-04T03:04:50Z (GMT). No. of bitstreams: 1 v67n1a13.pdf: 2664387 bytes, checksum: c9cf9b1fdf9df2d2a492bd43f63e029f (MD5) Previous issue date: 2014-03engInsitituto Federal de Educação, Ciência e Tecnologia do Rio Grande do NorteIFRNBrasilNatal - CentralRevista Escola de Minasengenharia de minasflotation, frother, froth control, coalescence, surface tension, froth stability.Comparative study of the main flotation frothers using a new HYDROMESS adapted techniqueinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6718792Veras, Moacir MedeirosBaltar, Carlos Adolpho MagalhãesPaulo, João Bosco de AraújoLeite, José Yvan Pereirainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional Memoria (IFRN)instname:Instituto Federal do Rio Grande do Norte (IFRN)instacron:IFRNTHUMBNAILv67n1a13.pdf.jpgv67n1a13.pdf.jpgIM Thumbnailimage/jpeg8663http://localhost:8080/xmlui/bitstream/1044/354/3/v67n1a13.pdf.jpgb3c477183f3a74311e44c2e4869c77b4MD53TEXTv67n1a13.pdf.txtv67n1a13.pdf.txtExtracted texttext/plain18257http://localhost:8080/xmlui/bitstream/1044/354/2/v67n1a13.pdf.txt26ce4697e3a118b45518ca085cfc366cMD52ORIGINALv67n1a13.pdfv67n1a13.pdfapplication/pdf2664387http://localhost:8080/xmlui/bitstream/1044/354/1/v67n1a13.pdfc9cf9b1fdf9df2d2a492bd43f63e029fMD511044/3542015-11-04 01:00:06.742oai:localhost:1044/354Repositório InstitucionalPUBhttps://memoria.ifrn.edu.br/oai/memoria@ifrn.edu.bropendoar:2015-11-04T04:00:06Repositório Institucional Memoria (IFRN) - Instituto Federal do Rio Grande do Norte (IFRN)false |
dc.title.pt_BR.fl_str_mv |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
title |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
spellingShingle |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique Veras, Moacir Medeiros engenharia de minas flotation, frother, froth control, coalescence, surface tension, froth stability. |
title_short |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
title_full |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
title_fullStr |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
title_full_unstemmed |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
title_sort |
Comparative study of the main flotation frothers using a new HYDROMESS adapted technique |
author |
Veras, Moacir Medeiros |
author_facet |
Veras, Moacir Medeiros Baltar, Carlos Adolpho Magalhães Paulo, João Bosco de Araújo Leite, José Yvan Pereira |
author_role |
author |
author2 |
Baltar, Carlos Adolpho Magalhães Paulo, João Bosco de Araújo Leite, José Yvan Pereira |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Veras, Moacir Medeiros Baltar, Carlos Adolpho Magalhães Paulo, João Bosco de Araújo Leite, José Yvan Pereira |
dc.subject.cnpq.fl_str_mv |
engenharia de minas |
topic |
engenharia de minas flotation, frother, froth control, coalescence, surface tension, froth stability. |
dc.subject.por.fl_str_mv |
flotation, frother, froth control, coalescence, surface tension, froth stability. |
description |
Stability of bubble size in the pulp zone and froth control is an important parameter for a successful flotation process. The present study compares the action of the main frothers in terms of: mean bubble size in the pulp zone, froth stability, surface-tension-lowering ability and reagent participation in flotation of a naturally hydrophobic mineral. Bubble size was determined using a new technique adapted from HYDROMESS, a device designed to measure drop size. The remaining indicators were obtained by determining surface tension and conducting flotation tests with the addition of hydrophobic (graphite) and hydrophilic (calcite) particles. The results indicate that methyl isobutyl carbinol (MIBC) is the most efficient frother in controlling coalescence, with critical coalescence concentration (CCC) reached at 20 ppm. Moreover, this frother has greater potential for selective action, since it increased calcite entrainment by only 2.3% at a concentration of 30 ppm. In flotation tests with a sample of graphite, MIBC produced higher recoveries. |
publishDate |
2014 |
dc.date.available.fl_str_mv |
2014-03 2015-11-04T03:04:50Z |
dc.date.issued.fl_str_mv |
2014-03 |
dc.date.accessioned.fl_str_mv |
2015-11-04T03:04:50Z |
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 |
Veras, Moacir Medeiros, Baltar, Carlos Adolpho Magalhães, Paulo, João Bosco de Araújo, & Leite, José Yvan Pereira. (2014). Comparative study of the main flotation frothers using a new HYDROMESS adapted technique. Rem: Revista Escola de Minas, 67(1), 87-92. Retrieved October 29, 2015, from http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000100013&lng=en&tlng=en. |
dc.identifier.uri.fl_str_mv |
http://memoria.ifrn.edu.br/handle/1044/354 |
dc.identifier.issn.pt_BR.fl_str_mv |
0370-4467 |
identifier_str_mv |
Veras, Moacir Medeiros, Baltar, Carlos Adolpho Magalhães, Paulo, João Bosco de Araújo, & Leite, José Yvan Pereira. (2014). Comparative study of the main flotation frothers using a new HYDROMESS adapted technique. Rem: Revista Escola de Minas, 67(1), 87-92. Retrieved October 29, 2015, from http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672014000100013&lng=en&tlng=en. 0370-4467 |
url |
http://memoria.ifrn.edu.br/handle/1044/354 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Revista Escola de Minas |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Insitituto 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 |
Insitituto Federal de Educação, Ciência e Tecnologia do Rio Grande do Norte |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional Memoria (IFRN) instname:Instituto Federal do Rio Grande do Norte (IFRN) instacron:IFRN |
instname_str |
Instituto Federal do Rio Grande do Norte (IFRN) |
instacron_str |
IFRN |
institution |
IFRN |
reponame_str |
Repositório Institucional Memoria (IFRN) |
collection |
Repositório Institucional Memoria (IFRN) |
bitstream.url.fl_str_mv |
http://localhost:8080/xmlui/bitstream/1044/354/3/v67n1a13.pdf.jpg http://localhost:8080/xmlui/bitstream/1044/354/2/v67n1a13.pdf.txt http://localhost:8080/xmlui/bitstream/1044/354/1/v67n1a13.pdf |
bitstream.checksum.fl_str_mv |
b3c477183f3a74311e44c2e4869c77b4 26ce4697e3a118b45518ca085cfc366c c9cf9b1fdf9df2d2a492bd43f63e029f |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional Memoria (IFRN) - Instituto Federal do Rio Grande do Norte (IFRN) |
repository.mail.fl_str_mv |
memoria@ifrn.edu.br |
_version_ |
1797135033550503936 |