Potassium solubilization in verdete and limestone mixtures treated thermochemically

Detalhes bibliográficos
Autor(a) principal: Martins, Vanessa
Data de Publicação: 2015
Outros Autores: Gonçalves, Ana Stella Freire, Marchi, Giuliano, Guilherme, Luiz Roberto Guimarães, Martins, Éder de Souza
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/27917
Resumo: Brazil owns reserves of low solubility potassium silicate rocks, being necessary the development of alternative processing methods to increase their solubility, so they can be efficiently used in agriculture. This study aimed to get new technological routes to produce alternative potassium sources from verdete. Calcination and alkaline solubilization tests were performed for verdete and limestone mixtures. The calcination process followed by cooling at room temperature provided a higher potassium availability than other methods used. However, the increase of limestone content, concerning verdete, decreased the potassium solubility. The treatment limestone:verdete, in the proportion of 0:100, after calcination at 800 ºC during one hour and then treated with NH4OH, and in the proportion of 25:75, after calcination, release proportionally higher amounts of K than non-calcinated samples.
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spelling Potassium solubilization in verdete and limestone mixtures treated thermochemicallySolubilização de potássio em misturas de verdete e calcário tratadas termoquimicamenteCalcinationalkaline solubilizationalternative source of potassium.Calcinaçãosolubilização alcalinafonte alternativa de potássio.Brazil owns reserves of low solubility potassium silicate rocks, being necessary the development of alternative processing methods to increase their solubility, so they can be efficiently used in agriculture. This study aimed to get new technological routes to produce alternative potassium sources from verdete. Calcination and alkaline solubilization tests were performed for verdete and limestone mixtures. The calcination process followed by cooling at room temperature provided a higher potassium availability than other methods used. However, the increase of limestone content, concerning verdete, decreased the potassium solubility. The treatment limestone:verdete, in the proportion of 0:100, after calcination at 800 ºC during one hour and then treated with NH4OH, and in the proportion of 25:75, after calcination, release proportionally higher amounts of K than non-calcinated samples.O Brasil dispõe de reservas de rochas silicáticas potássicas de baixa solubilidade, sendo necessário o desenvolvimento de alternativas de beneficiamento capazes de aumentar sua solubilidade, para o suprimento da demanda desse nutriente na agricultura. Este estudo objetivou a obtenção de novas rotas tecnológicas para a produção de fontes alternativas de potássio, a partir do verdete. Prepararam-se misturas de verdete com calcário, para as quais foram realizados testes de calcinação e solubilização alcalina. O processo de calcinação seguido de resfriamento à temperatura ambiente proporcionou maior disponibilidade de potássio que os outros métodos empregados. Porém, o aumento na proporção de calcário, em relação ao verdete, ocasionou diminuição na solubilidade do potássio. O tratamento calcário:verdete, na proporção 0:100, calcinado por uma hora a 800ºC e tratado com NH4OH, e na proporção 25:75, submetida à calcinação, liberam, proporcionalmente, maior quantidade de potássio que as misturas não calcinadas.Escola de Agronomia - Universidade Federal de Goiás2015-03-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionMétodos Quantitativosapplication/pdfhttps://revistas.ufg.br/pat/article/view/27917Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 45, n. 1, Jan./Mar. 2015; 66-72Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 45, n. 1, jan./mar. 2015; 66-72Pesquisa Agropecuária Tropical; v. 45, n. 1, jan./mar. 2015; 66-721983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/27917/18165Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessMartins, VanessaGonçalves, Ana Stella FreireMarchi, GiulianoGuilherme, Luiz Roberto GuimarãesMartins, Éder de Souza2020-07-13T15:55:05Zoai:ojs.revistas.ufg.br:article/27917Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:05.888502Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Potassium solubilization in verdete and limestone mixtures treated thermochemically
Solubilização de potássio em misturas de verdete e calcário tratadas termoquimicamente
title Potassium solubilization in verdete and limestone mixtures treated thermochemically
spellingShingle Potassium solubilization in verdete and limestone mixtures treated thermochemically
Martins, Vanessa
Calcination
alkaline solubilization
alternative source of potassium.
Calcinação
solubilização alcalina
fonte alternativa de potássio.
title_short Potassium solubilization in verdete and limestone mixtures treated thermochemically
title_full Potassium solubilization in verdete and limestone mixtures treated thermochemically
title_fullStr Potassium solubilization in verdete and limestone mixtures treated thermochemically
title_full_unstemmed Potassium solubilization in verdete and limestone mixtures treated thermochemically
title_sort Potassium solubilization in verdete and limestone mixtures treated thermochemically
author Martins, Vanessa
author_facet Martins, Vanessa
Gonçalves, Ana Stella Freire
Marchi, Giuliano
Guilherme, Luiz Roberto Guimarães
Martins, Éder de Souza
author_role author
author2 Gonçalves, Ana Stella Freire
Marchi, Giuliano
Guilherme, Luiz Roberto Guimarães
Martins, Éder de Souza
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Martins, Vanessa
Gonçalves, Ana Stella Freire
Marchi, Giuliano
Guilherme, Luiz Roberto Guimarães
Martins, Éder de Souza
dc.subject.por.fl_str_mv Calcination
alkaline solubilization
alternative source of potassium.
Calcinação
solubilização alcalina
fonte alternativa de potássio.
topic Calcination
alkaline solubilization
alternative source of potassium.
Calcinação
solubilização alcalina
fonte alternativa de potássio.
description Brazil owns reserves of low solubility potassium silicate rocks, being necessary the development of alternative processing methods to increase their solubility, so they can be efficiently used in agriculture. This study aimed to get new technological routes to produce alternative potassium sources from verdete. Calcination and alkaline solubilization tests were performed for verdete and limestone mixtures. The calcination process followed by cooling at room temperature provided a higher potassium availability than other methods used. However, the increase of limestone content, concerning verdete, decreased the potassium solubility. The treatment limestone:verdete, in the proportion of 0:100, after calcination at 800 ºC during one hour and then treated with NH4OH, and in the proportion of 25:75, after calcination, release proportionally higher amounts of K than non-calcinated samples.
publishDate 2015
dc.date.none.fl_str_mv 2015-03-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Métodos Quantitativos
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/27917
url https://revistas.ufg.br/pat/article/view/27917
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/27917/18165
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 45, n. 1, Jan./Mar. 2015; 66-72
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 45, n. 1, jan./mar. 2015; 66-72
Pesquisa Agropecuária Tropical; v. 45, n. 1, jan./mar. 2015; 66-72
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874818847277056

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