Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jclepro.2016.09.204 http://hdl.handle.net/11449/173757 |
Resumo: | This study investigated the leaching process in order to maximize Mg and Fe extraction and to produce amorphous silica (SiO2) with high purity. For this, a mining waste identified as S-GO was employed; which is a serpentinite rock with high lizardite 1T and native brucite contents. A Taguchi Experiment Design was used in order to assess the parameters that influence the leaching process such as: granulometry, hydrochloric acid concentration (HCl), leaching temperature, and mass/volume ratio. Furthermore, thermogravimetric analysis (TGA) was done to understand the interrelation between the mineral structure and leaching performance. Results show that lizardite 1T-bearing serpentinite presents a low content of tetrahedral Al3+ and high octahedral Fe3+ contents on S-GO. Native brucite delayed the formation of a hydrated silica layer and improved dissolution of serpentines. For this, Mg and Fe extractions are efficient, reaching 88 ± 2% of Mg and Fe extracted during the first 30 min of reaction, under mild process conditions: stoichiometric mass/volume ratio, 1M HCl concentration, pressure of 1 bar, temperature of 100 °C, and 300 μm particle size. On the other hand, an excess of acid improves Mg and Fe extraction by only 10 ± 5% for S-GO. Such characteristics reduce energetic penalties and costs involved on indirect mineral carbonation processes by the pH swing method. |
id |
UNSP_6e68134e7c53b855f33d9bc2e4b8a017 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/173757 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing methodBruciteIronLeachingLizarditeMineral carbonationMining wasteThis study investigated the leaching process in order to maximize Mg and Fe extraction and to produce amorphous silica (SiO2) with high purity. For this, a mining waste identified as S-GO was employed; which is a serpentinite rock with high lizardite 1T and native brucite contents. A Taguchi Experiment Design was used in order to assess the parameters that influence the leaching process such as: granulometry, hydrochloric acid concentration (HCl), leaching temperature, and mass/volume ratio. Furthermore, thermogravimetric analysis (TGA) was done to understand the interrelation between the mineral structure and leaching performance. Results show that lizardite 1T-bearing serpentinite presents a low content of tetrahedral Al3+ and high octahedral Fe3+ contents on S-GO. Native brucite delayed the formation of a hydrated silica layer and improved dissolution of serpentines. For this, Mg and Fe extractions are efficient, reaching 88 ± 2% of Mg and Fe extracted during the first 30 min of reaction, under mild process conditions: stoichiometric mass/volume ratio, 1M HCl concentration, pressure of 1 bar, temperature of 100 °C, and 300 μm particle size. On the other hand, an excess of acid improves Mg and Fe extraction by only 10 ± 5% for S-GO. Such characteristics reduce energetic penalties and costs involved on indirect mineral carbonation processes by the pH swing method.INPE – National Institute for Space Research Combustion and Propulsion Associated Laboratory, Rodovía Presidente Dutra, km 40UNESP – Univ Estadual Paulista Guaratinguetá Engineering Campus Department of Energy Combustion and Carbon Capture Laboratory (LC3), Av. Dr. Ariberto Pereira da Cunha, 333UNESP – Univ Estadual Paulista Guaratinguetá Engineering Campus Department of Energy Combustion and Carbon Capture Laboratory (LC3), Av. Dr. Ariberto Pereira da Cunha, 333Combustion and Propulsion Associated LaboratoryUniversidade Estadual Paulista (Unesp)Arce, Gretta L.A.F. [UNESP]Soares Neto, Turibio G.Ávila, I. [UNESP]Luna, Carlos M.R. [UNESP]Carvalho, João A. [UNESP]2018-12-11T17:07:36Z2018-12-11T17:07:36Z2017-01-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1324-1336application/pdfhttp://dx.doi.org/10.1016/j.jclepro.2016.09.204Journal of Cleaner Production, v. 141, p. 1324-1336.0959-6526http://hdl.handle.net/11449/17375710.1016/j.jclepro.2016.09.2042-s2.0-849946272262-s2.0-84994627226.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Cleaner Production1,467info:eu-repo/semantics/openAccess2024-07-01T19:30:01Zoai:repositorio.unesp.br:11449/173757Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:01:44.318454Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
title |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
spellingShingle |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method Arce, Gretta L.A.F. [UNESP] Brucite Iron Leaching Lizardite Mineral carbonation Mining waste |
title_short |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
title_full |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
title_fullStr |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
title_full_unstemmed |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
title_sort |
Leaching optimization of mining wastes with lizardite and brucite contents for use in indirect mineral carbonation through the pH swing method |
author |
Arce, Gretta L.A.F. [UNESP] |
author_facet |
Arce, Gretta L.A.F. [UNESP] Soares Neto, Turibio G. Ávila, I. [UNESP] Luna, Carlos M.R. [UNESP] Carvalho, João A. [UNESP] |
author_role |
author |
author2 |
Soares Neto, Turibio G. Ávila, I. [UNESP] Luna, Carlos M.R. [UNESP] Carvalho, João A. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Combustion and Propulsion Associated Laboratory Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Arce, Gretta L.A.F. [UNESP] Soares Neto, Turibio G. Ávila, I. [UNESP] Luna, Carlos M.R. [UNESP] Carvalho, João A. [UNESP] |
dc.subject.por.fl_str_mv |
Brucite Iron Leaching Lizardite Mineral carbonation Mining waste |
topic |
Brucite Iron Leaching Lizardite Mineral carbonation Mining waste |
description |
This study investigated the leaching process in order to maximize Mg and Fe extraction and to produce amorphous silica (SiO2) with high purity. For this, a mining waste identified as S-GO was employed; which is a serpentinite rock with high lizardite 1T and native brucite contents. A Taguchi Experiment Design was used in order to assess the parameters that influence the leaching process such as: granulometry, hydrochloric acid concentration (HCl), leaching temperature, and mass/volume ratio. Furthermore, thermogravimetric analysis (TGA) was done to understand the interrelation between the mineral structure and leaching performance. Results show that lizardite 1T-bearing serpentinite presents a low content of tetrahedral Al3+ and high octahedral Fe3+ contents on S-GO. Native brucite delayed the formation of a hydrated silica layer and improved dissolution of serpentines. For this, Mg and Fe extractions are efficient, reaching 88 ± 2% of Mg and Fe extracted during the first 30 min of reaction, under mild process conditions: stoichiometric mass/volume ratio, 1M HCl concentration, pressure of 1 bar, temperature of 100 °C, and 300 μm particle size. On the other hand, an excess of acid improves Mg and Fe extraction by only 10 ± 5% for S-GO. Such characteristics reduce energetic penalties and costs involved on indirect mineral carbonation processes by the pH swing method. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-10 2018-12-11T17:07:36Z 2018-12-11T17:07:36Z |
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.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.jclepro.2016.09.204 Journal of Cleaner Production, v. 141, p. 1324-1336. 0959-6526 http://hdl.handle.net/11449/173757 10.1016/j.jclepro.2016.09.204 2-s2.0-84994627226 2-s2.0-84994627226.pdf |
url |
http://dx.doi.org/10.1016/j.jclepro.2016.09.204 http://hdl.handle.net/11449/173757 |
identifier_str_mv |
Journal of Cleaner Production, v. 141, p. 1324-1336. 0959-6526 10.1016/j.jclepro.2016.09.204 2-s2.0-84994627226 2-s2.0-84994627226.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Cleaner Production 1,467 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1324-1336 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129574144311296 |