Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum
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.mineng.2022.107662 http://hdl.handle.net/11449/241178 |
Resumo: | Industrial production of sulfuric acid requires a high amount of energy and in remote regions such as mineral extraction pits, in situ production becomes unfeasible. This work proposes an alternative for the production of H2SO4 that uses sulfur-oxidizing microorganisms. The production capacity of this acid in a mesophilic (30 °C) and a thermophilic (65 °C) condition was studied by three collected consortia from acid mine drainage and compared with Acidithiobacillus thiooxidans. It was found that At. thiooxidans presented higher sulfuric acid production than the consortia collected and, therefore, it was selected for the bioleaching of rare earths elements (REEs) from phosphogypsum (PG). Due to the acid consumption of phosphogypsum, the two-step bioleaching condition resulted in higher REEs extraction (98% Nd, 60% Ce, 58% La, and 62% Y) when compared to one-step bioleaching (28% Nd, 17% Ce, 18% La, and 30% Y). The process was performed on a reactor scale and it was possible to extract 55.0% of the REEs contained in 300 g of waste and concentrate them into 0.922 g of rare earth oxalates, with a final yield of 52.5%, showing that the proposed bioprocess has potential application even in remote areas due to its low energy consumption when compared to traditional processes. |
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Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsumAcidithiobacillus thiooxidansBioleachingPhosphogypsumRare earthIndustrial production of sulfuric acid requires a high amount of energy and in remote regions such as mineral extraction pits, in situ production becomes unfeasible. This work proposes an alternative for the production of H2SO4 that uses sulfur-oxidizing microorganisms. The production capacity of this acid in a mesophilic (30 °C) and a thermophilic (65 °C) condition was studied by three collected consortia from acid mine drainage and compared with Acidithiobacillus thiooxidans. It was found that At. thiooxidans presented higher sulfuric acid production than the consortia collected and, therefore, it was selected for the bioleaching of rare earths elements (REEs) from phosphogypsum (PG). Due to the acid consumption of phosphogypsum, the two-step bioleaching condition resulted in higher REEs extraction (98% Nd, 60% Ce, 58% La, and 62% Y) when compared to one-step bioleaching (28% Nd, 17% Ce, 18% La, and 30% Y). The process was performed on a reactor scale and it was possible to extract 55.0% of the REEs contained in 300 g of waste and concentrate them into 0.922 g of rare earth oxalates, with a final yield of 52.5%, showing that the proposed bioprocess has potential application even in remote areas due to its low energy consumption when compared to traditional processes.Department of Biochemistry Institute of Chemistry UNESP Rua Francisco Degni 55, QuitandinhaDepartment of Biochemistry Institute of Chemistry UNESP Rua Francisco Degni 55, QuitandinhaUniversidade Estadual Paulista (UNESP)Tayar, Samir Prioto [UNESP]Palmieri, Mauricio Cesar [UNESP]Bevilaqua, Denise [UNESP]2023-03-01T20:50:24Z2023-03-01T20:50:24Z2022-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.mineng.2022.107662Minerals Engineering, v. 185.0892-6875http://hdl.handle.net/11449/24117810.1016/j.mineng.2022.1076622-s2.0-85132232823Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMinerals Engineeringinfo:eu-repo/semantics/openAccess2023-03-01T20:50:24Zoai:repositorio.unesp.br:11449/241178Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:41:37.827308Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
title |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
spellingShingle |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum Tayar, Samir Prioto [UNESP] Acidithiobacillus thiooxidans Bioleaching Phosphogypsum Rare earth |
title_short |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
title_full |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
title_fullStr |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
title_full_unstemmed |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
title_sort |
Sulfuric acid bioproduction and its application in rare earth extraction from phosphogypsum |
author |
Tayar, Samir Prioto [UNESP] |
author_facet |
Tayar, Samir Prioto [UNESP] Palmieri, Mauricio Cesar [UNESP] Bevilaqua, Denise [UNESP] |
author_role |
author |
author2 |
Palmieri, Mauricio Cesar [UNESP] Bevilaqua, Denise [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Tayar, Samir Prioto [UNESP] Palmieri, Mauricio Cesar [UNESP] Bevilaqua, Denise [UNESP] |
dc.subject.por.fl_str_mv |
Acidithiobacillus thiooxidans Bioleaching Phosphogypsum Rare earth |
topic |
Acidithiobacillus thiooxidans Bioleaching Phosphogypsum Rare earth |
description |
Industrial production of sulfuric acid requires a high amount of energy and in remote regions such as mineral extraction pits, in situ production becomes unfeasible. This work proposes an alternative for the production of H2SO4 that uses sulfur-oxidizing microorganisms. The production capacity of this acid in a mesophilic (30 °C) and a thermophilic (65 °C) condition was studied by three collected consortia from acid mine drainage and compared with Acidithiobacillus thiooxidans. It was found that At. thiooxidans presented higher sulfuric acid production than the consortia collected and, therefore, it was selected for the bioleaching of rare earths elements (REEs) from phosphogypsum (PG). Due to the acid consumption of phosphogypsum, the two-step bioleaching condition resulted in higher REEs extraction (98% Nd, 60% Ce, 58% La, and 62% Y) when compared to one-step bioleaching (28% Nd, 17% Ce, 18% La, and 30% Y). The process was performed on a reactor scale and it was possible to extract 55.0% of the REEs contained in 300 g of waste and concentrate them into 0.922 g of rare earth oxalates, with a final yield of 52.5%, showing that the proposed bioprocess has potential application even in remote areas due to its low energy consumption when compared to traditional processes. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-07-01 2023-03-01T20:50:24Z 2023-03-01T20:50:24Z |
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.mineng.2022.107662 Minerals Engineering, v. 185. 0892-6875 http://hdl.handle.net/11449/241178 10.1016/j.mineng.2022.107662 2-s2.0-85132232823 |
url |
http://dx.doi.org/10.1016/j.mineng.2022.107662 http://hdl.handle.net/11449/241178 |
identifier_str_mv |
Minerals Engineering, v. 185. 0892-6875 10.1016/j.mineng.2022.107662 2-s2.0-85132232823 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Minerals Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1808129347736829952 |