Understanding the acid dissolution of Serpentinites (Tailings and waste rock) for use in indirect mineral carbonation
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
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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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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1808128981579333632 |