Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore

The mineralogy and liberation characteristics of the comminuted Penouta leucogranite host of the Sn-Ta ore were determined. Grinding developed by a combination of high-pressure grinding rolls (HPGR) followed by a ball mill (BM) was compared with a single ball mill process. The mineral characteristic...

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Autores: Ahmad Hamid, Sarbast, Alfonso Abella, María Pura, Anticoi, Hernan, Guasch, Eduard, Oliva, Josep, Dosbaba, Marek, Garcia Vallès, Maite, Chugunova, Marina
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/122983
Acceso en línea:https://hdl.handle.net/2445/122983
Access Level:acceso abierto
Palabra clave:Mineralogia
Jaciments minerals
Mineralogy
Mineral deposits
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spelling Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta OreAhmad Hamid, SarbastAlfonso Abella, María PuraAnticoi, HernanGuasch, EduardOliva, JosepDosbaba, MarekGarcia Vallès, MaiteChugunova, MarinaMineralogiaJaciments mineralsMineralogyMineral depositsThe mineralogy and liberation characteristics of the comminuted Penouta leucogranite host of the Sn-Ta ore were determined. Grinding developed by a combination of high-pressure grinding rolls (HPGR) followed by a ball mill (BM) was compared with a single ball mill process. The mineral characteristics of the grinding products were analyzed using a Tescan Integrated Mineralogical Analyzer (TIMA-X) and X-ray powder diffraction (XRD). The ore contains 103 ppm of Ta and is mainly composed of quartz, albite, microcline, muscovite, and kaolinite. Nb, Ta-rich minerals are columbite-(Mn) and tantalite-(Mn), as well as minor microlite and wodginite. The liberation in the product is high in the size fraction of less than 250 m (51-52 wt % for columbite-group minerals (CGM) and 74-80 wt % for cassiterite) and reduced in larger particles (8.8-17 wt % for CGM and 28-37 wt % for cassiterite). The recovery in the 250 m fraction was high, while in the larger fraction it is limited, remaining up to 80 ppm in some tailings. The combined use of HPGR and a BM reduces the particle size distribution of the product and, thus, increases the liberation of the ores. Smaller fractions can be treated directly using gravity methods; however, particles of a size greater than +250 m should be ground more.MDPI2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/122983Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.3390/min8040151Minerals, 2018, vol. 8, num. 4, p. 151https://doi.org/10.3390/min8040151info:eu-repo/grantAgreement/EC/H2020/642201cc-by (c) Ahmad Hamid, S. et al., 2018http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1229832026-05-27T06:46:51Z
dc.title.none.fl_str_mv Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
title Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
spellingShingle Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
Ahmad Hamid, Sarbast
Mineralogia
Jaciments minerals
Mineralogy
Mineral deposits
title_short Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
title_full Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
title_fullStr Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
title_full_unstemmed Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
title_sort Quantitative Mineralogical Comparison between HPGR and Ball Mill Products of a Sn-Ta Ore
dc.creator.none.fl_str_mv Ahmad Hamid, Sarbast
Alfonso Abella, María Pura
Anticoi, Hernan
Guasch, Eduard
Oliva, Josep
Dosbaba, Marek
Garcia Vallès, Maite
Chugunova, Marina
author Ahmad Hamid, Sarbast
author_facet Ahmad Hamid, Sarbast
Alfonso Abella, María Pura
Anticoi, Hernan
Guasch, Eduard
Oliva, Josep
Dosbaba, Marek
Garcia Vallès, Maite
Chugunova, Marina
author_role author
author2 Alfonso Abella, María Pura
Anticoi, Hernan
Guasch, Eduard
Oliva, Josep
Dosbaba, Marek
Garcia Vallès, Maite
Chugunova, Marina
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Mineralogia
Jaciments minerals
Mineralogy
Mineral deposits
topic Mineralogia
Jaciments minerals
Mineralogy
Mineral deposits
description The mineralogy and liberation characteristics of the comminuted Penouta leucogranite host of the Sn-Ta ore were determined. Grinding developed by a combination of high-pressure grinding rolls (HPGR) followed by a ball mill (BM) was compared with a single ball mill process. The mineral characteristics of the grinding products were analyzed using a Tescan Integrated Mineralogical Analyzer (TIMA-X) and X-ray powder diffraction (XRD). The ore contains 103 ppm of Ta and is mainly composed of quartz, albite, microcline, muscovite, and kaolinite. Nb, Ta-rich minerals are columbite-(Mn) and tantalite-(Mn), as well as minor microlite and wodginite. The liberation in the product is high in the size fraction of less than 250 m (51-52 wt % for columbite-group minerals (CGM) and 74-80 wt % for cassiterite) and reduced in larger particles (8.8-17 wt % for CGM and 28-37 wt % for cassiterite). The recovery in the 250 m fraction was high, while in the larger fraction it is limited, remaining up to 80 ppm in some tailings. The combined use of HPGR and a BM reduces the particle size distribution of the product and, thus, increases the liberation of the ores. Smaller fractions can be treated directly using gravity methods; however, particles of a size greater than +250 m should be ground more.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/122983
url https://hdl.handle.net/2445/122983
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3390/min8040151
Minerals, 2018, vol. 8, num. 4, p. 151
https://doi.org/10.3390/min8040151
info:eu-repo/grantAgreement/EC/H2020/642201
dc.rights.none.fl_str_mv cc-by (c) Ahmad Hamid, S. et al., 2018
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Ahmad Hamid, S. et al., 2018
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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