Thermal and chemical solubilization of verdete for use as potassium fertilizer
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | LOCUS Repositório Institucional da UFV |
Texto Completo: | https://doi.org/10.1016/j.minpro.2015.05.003 http://www.locus.ufv.br/handle/123456789/22892 |
Resumo: | Thermal and chemical treatments were used to investigate the solubilization of potassium from verdete, a glauconitic rock. Fluxing agents were evaluated at distinct temperatures and proportions. Chemical dissolution of verdete was studied with increasing amounts of acids or bases at different temperatures and reaction times. In the calcination test, the presence of fluxing agents was critical to increasing the rock solubility, in addition to the effects of temperature and material ratios. The content of water-soluble K was 100, 100, 85, and 42% when using the salts LiCl, CaCl2.2H2O, Na2CO3, NaCl, respectively, as fluxing agents. The salts CaSO4, CaCO3 and Ca3(PO4)2 were ineffective as fluxing agents. In the chemical treatments, the reaction with the base NaOH was more efficient than the acids to solubilize K. It was possible to solubilize up to 60% of K from verdete with 4.0 mol L− 1 NaOH, at 150 °C for 120 min. Among the acids, H3PO4 was the most efficient, promoting solubilization of up to 42% K, with 4.0 mol L− 1 H3PO4, at 225 °C, for 120 min. When using the concentrated acid waste and shaking for 144 h, up to 75% of K could be solubilized from the rock. It was concluded that the heated treatments were most effective in solubilizing verdete, followed by the acid waste, which are processes required for the production of soluble potassium fertilizers from unconventional sources of low reactivity. |
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Santos, Wedisson OliveiraMattiello, Edson MarcioCosta, Liovando Marciano daAbrahão, Walter Antônio PereiraNovais, Roberto Ferreira deCantarutti, Reinaldo Bertola2019-01-02T18:45:14Z2019-01-02T18:45:14Z2015-07-100301-7516https://doi.org/10.1016/j.minpro.2015.05.003http://www.locus.ufv.br/handle/123456789/22892Thermal and chemical treatments were used to investigate the solubilization of potassium from verdete, a glauconitic rock. Fluxing agents were evaluated at distinct temperatures and proportions. Chemical dissolution of verdete was studied with increasing amounts of acids or bases at different temperatures and reaction times. In the calcination test, the presence of fluxing agents was critical to increasing the rock solubility, in addition to the effects of temperature and material ratios. The content of water-soluble K was 100, 100, 85, and 42% when using the salts LiCl, CaCl2.2H2O, Na2CO3, NaCl, respectively, as fluxing agents. The salts CaSO4, CaCO3 and Ca3(PO4)2 were ineffective as fluxing agents. In the chemical treatments, the reaction with the base NaOH was more efficient than the acids to solubilize K. It was possible to solubilize up to 60% of K from verdete with 4.0 mol L− 1 NaOH, at 150 °C for 120 min. Among the acids, H3PO4 was the most efficient, promoting solubilization of up to 42% K, with 4.0 mol L− 1 H3PO4, at 225 °C, for 120 min. When using the concentrated acid waste and shaking for 144 h, up to 75% of K could be solubilized from the rock. It was concluded that the heated treatments were most effective in solubilizing verdete, followed by the acid waste, which are processes required for the production of soluble potassium fertilizers from unconventional sources of low reactivity.engInternational Journal of Mineral ProcessingVolume 140, Pages 72- 78, July 20152015 Elsevier B.V. All rights reserved.info:eu-repo/semantics/openAccessGlauconiteCalcinationPotassium fertilizerThermal and chemical solubilization of verdete for use as potassium fertilizerinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALartigo.pdfartigo.pdfTexto completoapplication/pdf501448https://locus.ufv.br//bitstream/123456789/22892/1/artigo.pdf86571168fe33cc3f64186728ee6078c6MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/22892/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/228922019-01-02 16:04:28.622oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452019-01-02T19:04:28LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.en.fl_str_mv |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
title |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
spellingShingle |
Thermal and chemical solubilization of verdete for use as potassium fertilizer Santos, Wedisson Oliveira Glauconite Calcination Potassium fertilizer |
title_short |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
title_full |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
title_fullStr |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
title_full_unstemmed |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
title_sort |
Thermal and chemical solubilization of verdete for use as potassium fertilizer |
author |
Santos, Wedisson Oliveira |
author_facet |
Santos, Wedisson Oliveira Mattiello, Edson Marcio Costa, Liovando Marciano da Abrahão, Walter Antônio Pereira Novais, Roberto Ferreira de Cantarutti, Reinaldo Bertola |
author_role |
author |
author2 |
Mattiello, Edson Marcio Costa, Liovando Marciano da Abrahão, Walter Antônio Pereira Novais, Roberto Ferreira de Cantarutti, Reinaldo Bertola |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Santos, Wedisson Oliveira Mattiello, Edson Marcio Costa, Liovando Marciano da Abrahão, Walter Antônio Pereira Novais, Roberto Ferreira de Cantarutti, Reinaldo Bertola |
dc.subject.pt-BR.fl_str_mv |
Glauconite Calcination Potassium fertilizer |
topic |
Glauconite Calcination Potassium fertilizer |
description |
Thermal and chemical treatments were used to investigate the solubilization of potassium from verdete, a glauconitic rock. Fluxing agents were evaluated at distinct temperatures and proportions. Chemical dissolution of verdete was studied with increasing amounts of acids or bases at different temperatures and reaction times. In the calcination test, the presence of fluxing agents was critical to increasing the rock solubility, in addition to the effects of temperature and material ratios. The content of water-soluble K was 100, 100, 85, and 42% when using the salts LiCl, CaCl2.2H2O, Na2CO3, NaCl, respectively, as fluxing agents. The salts CaSO4, CaCO3 and Ca3(PO4)2 were ineffective as fluxing agents. In the chemical treatments, the reaction with the base NaOH was more efficient than the acids to solubilize K. It was possible to solubilize up to 60% of K from verdete with 4.0 mol L− 1 NaOH, at 150 °C for 120 min. Among the acids, H3PO4 was the most efficient, promoting solubilization of up to 42% K, with 4.0 mol L− 1 H3PO4, at 225 °C, for 120 min. When using the concentrated acid waste and shaking for 144 h, up to 75% of K could be solubilized from the rock. It was concluded that the heated treatments were most effective in solubilizing verdete, followed by the acid waste, which are processes required for the production of soluble potassium fertilizers from unconventional sources of low reactivity. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-07-10 |
dc.date.accessioned.fl_str_mv |
2019-01-02T18:45:14Z |
dc.date.available.fl_str_mv |
2019-01-02T18:45:14Z |
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 |
https://doi.org/10.1016/j.minpro.2015.05.003 http://www.locus.ufv.br/handle/123456789/22892 |
dc.identifier.issn.none.fl_str_mv |
0301-7516 |
identifier_str_mv |
0301-7516 |
url |
https://doi.org/10.1016/j.minpro.2015.05.003 http://www.locus.ufv.br/handle/123456789/22892 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.pt-BR.fl_str_mv |
Volume 140, Pages 72- 78, July 2015 |
dc.rights.driver.fl_str_mv |
2015 Elsevier B.V. All rights reserved. info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
2015 Elsevier B.V. All rights reserved. |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
International Journal of Mineral Processing |
publisher.none.fl_str_mv |
International Journal of Mineral Processing |
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reponame:LOCUS Repositório Institucional da UFV instname:Universidade Federal de Viçosa (UFV) instacron:UFV |
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UFV |
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LOCUS Repositório Institucional da UFV |
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