Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation

Detalhes bibliográficos
Autor(a) principal: Vieira, Kely R.M. [UNESP]
Data de Publicação: 2022
Outros Autores: Arce, Gretta L.A.F. [UNESP], Luna, Carlos M.R. [UNESP], Facio, Vitor O. [UNESP], Carvalho, João A [UNESP], Neto, Turíbio G. Soares, Ávila, Ivonete [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.sajce.2022.02.005
http://hdl.handle.net/11449/230534
Resumo: Solid carbonates can be formed by indirect mineral carbonation using the pH swing method for CO2 storage. It occurs at low temperatures and pressures in four stages: acid dissolution, purification, carbonation, and recovery. Although acid dissolution requires short reaction time that favors the extraction of reactive metals, lack of knowledge about the effects of temperature, acid concentration and particle size on metal extraction reveals that it is a critical stage of indirect mineral carbonation. In order to employ mining waste for indirect mineral carbonation, acid dissolution of serpentinites, tailings (SERP-GO) and waste rock (SERP-MG) were investigated, and their performances were compared. A Taguchi experiment design was used to assess the parameters that influence the acid dissolution process. Hydrochloric acid was used in acid dissolution for Mg and Fe extraction from both, SERP-GO and SERP-MG, and the process parameters (temperature, acid concentration, particle size and excess acid) were evaluated for 2 h of reaction. According to signal-to-noise ratio analysis of the Taguchi method, the optimized condition for Mg extraction of both samples was at 70 °C, 4 M HCl, 69 μm and twice the excess acid. The results indicated that of Mg and Fe extraction from de samples was more efficient for SERP-GO (71% and 85%) than SERP-MG (33% and 31%). Based on these findings, it was possible to have a better understanding of the factors affecting the dissolution of serpentinite tailings, to develop a more effective process for the use of mining waste in the indirect mineral carbonation process.
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spelling Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonationDissolutionMineral carbonationSerpentiniteTaguchiTailingsWaste rockSolid carbonates can be formed by indirect mineral carbonation using the pH swing method for CO2 storage. It occurs at low temperatures and pressures in four stages: acid dissolution, purification, carbonation, and recovery. Although acid dissolution requires short reaction time that favors the extraction of reactive metals, lack of knowledge about the effects of temperature, acid concentration and particle size on metal extraction reveals that it is a critical stage of indirect mineral carbonation. In order to employ mining waste for indirect mineral carbonation, acid dissolution of serpentinites, tailings (SERP-GO) and waste rock (SERP-MG) were investigated, and their performances were compared. A Taguchi experiment design was used to assess the parameters that influence the acid dissolution process. Hydrochloric acid was used in acid dissolution for Mg and Fe extraction from both, SERP-GO and SERP-MG, and the process parameters (temperature, acid concentration, particle size and excess acid) were evaluated for 2 h of reaction. According to signal-to-noise ratio analysis of the Taguchi method, the optimized condition for Mg extraction of both samples was at 70 °C, 4 M HCl, 69 μm and twice the excess acid. The results indicated that of Mg and Fe extraction from de samples was more efficient for SERP-GO (71% and 85%) than SERP-MG (33% and 31%). Based on these findings, it was possible to have a better understanding of the factors affecting the dissolution of serpentinite tailings, to develop a more effective process for the use of mining waste in the indirect mineral carbonation process.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Agência Nacional do Petróleo, Gás Natural e BiocombustíveisSão Paulo State University (UNESP) School of Engineering Department of Energy and Chemistry Laboratory of Combustion and Carbon Capture (LC3), CEP 12516-410, SPSão Paulo State University (UNESP) Production Engineering, SPINPE - National Institute for Space Research Combustion and Propulsion Associated Laboratory, CEP 12630-000, SPSão Paulo State University (UNESP) School of Engineering Department of Energy and Chemistry Laboratory of Combustion and Carbon Capture (LC3), CEP 12516-410, SPSão Paulo State University (UNESP) Production Engineering, SPFAPESP: 2019/16966–8CNPq: 301383/2018–9Agência Nacional do Petróleo, Gás Natural e Biocombustíveis: 48610.20073/2019–21- PRH-ANP 34.1Universidade Estadual Paulista (UNESP)Combustion and Propulsion Associated LaboratoryVieira, Kely R.M. [UNESP]Arce, Gretta L.A.F. [UNESP]Luna, Carlos M.R. [UNESP]Facio, Vitor O. [UNESP]Carvalho, João A [UNESP]Neto, Turíbio G. SoaresÁvila, Ivonete [UNESP]2022-04-29T08:40:40Z2022-04-29T08:40:40Z2022-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article154-164http://dx.doi.org/10.1016/j.sajce.2022.02.005South African Journal of Chemical Engineering, v. 40, p. 154-164.1026-9185http://hdl.handle.net/11449/23053410.1016/j.sajce.2022.02.0052-s2.0-85125962958Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengSouth African Journal of Chemical Engineeringinfo:eu-repo/semantics/openAccess2024-07-01T20:52:18Zoai:repositorio.unesp.br:11449/230534Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:48:04.537761Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
title Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
spellingShingle Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
Vieira, Kely R.M. [UNESP]
Dissolution
Mineral carbonation
Serpentinite
Taguchi
Tailings
Waste rock
title_short Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
title_full Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
title_fullStr Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
title_full_unstemmed Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
title_sort Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
author Vieira, Kely R.M. [UNESP]
author_facet Vieira, Kely R.M. [UNESP]
Arce, Gretta L.A.F. [UNESP]
Luna, Carlos M.R. [UNESP]
Facio, Vitor O. [UNESP]
Carvalho, João A [UNESP]
Neto, Turíbio G. Soares
Ávila, Ivonete [UNESP]
author_role author
author2 Arce, Gretta L.A.F. [UNESP]
Luna, Carlos M.R. [UNESP]
Facio, Vitor O. [UNESP]
Carvalho, João A [UNESP]
Neto, Turíbio G. Soares
Ávila, Ivonete [UNESP]
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Combustion and Propulsion Associated Laboratory
dc.contributor.author.fl_str_mv Vieira, Kely R.M. [UNESP]
Arce, Gretta L.A.F. [UNESP]
Luna, Carlos M.R. [UNESP]
Facio, Vitor O. [UNESP]
Carvalho, João A [UNESP]
Neto, Turíbio G. Soares
Ávila, Ivonete [UNESP]
dc.subject.por.fl_str_mv Dissolution
Mineral carbonation
Serpentinite
Taguchi
Tailings
Waste rock
topic Dissolution
Mineral carbonation
Serpentinite
Taguchi
Tailings
Waste rock
description Solid carbonates can be formed by indirect mineral carbonation using the pH swing method for CO2 storage. It occurs at low temperatures and pressures in four stages: acid dissolution, purification, carbonation, and recovery. Although acid dissolution requires short reaction time that favors the extraction of reactive metals, lack of knowledge about the effects of temperature, acid concentration and particle size on metal extraction reveals that it is a critical stage of indirect mineral carbonation. In order to employ mining waste for indirect mineral carbonation, acid dissolution of serpentinites, tailings (SERP-GO) and waste rock (SERP-MG) were investigated, and their performances were compared. A Taguchi experiment design was used to assess the parameters that influence the acid dissolution process. Hydrochloric acid was used in acid dissolution for Mg and Fe extraction from both, SERP-GO and SERP-MG, and the process parameters (temperature, acid concentration, particle size and excess acid) were evaluated for 2 h of reaction. According to signal-to-noise ratio analysis of the Taguchi method, the optimized condition for Mg extraction of both samples was at 70 °C, 4 M HCl, 69 μm and twice the excess acid. The results indicated that of Mg and Fe extraction from de samples was more efficient for SERP-GO (71% and 85%) than SERP-MG (33% and 31%). Based on these findings, it was possible to have a better understanding of the factors affecting the dissolution of serpentinite tailings, to develop a more effective process for the use of mining waste in the indirect mineral carbonation process.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-29T08:40:40Z
2022-04-29T08:40:40Z
2022-04-01
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.sajce.2022.02.005
South African Journal of Chemical Engineering, v. 40, p. 154-164.
1026-9185
http://hdl.handle.net/11449/230534
10.1016/j.sajce.2022.02.005
2-s2.0-85125962958
url http://dx.doi.org/10.1016/j.sajce.2022.02.005
http://hdl.handle.net/11449/230534
identifier_str_mv South African Journal of Chemical Engineering, v. 40, p. 154-164.
1026-9185
10.1016/j.sajce.2022.02.005
2-s2.0-85125962958
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv South African Journal of Chemical Engineering
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 154-164
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
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