Potassium solubilization in verdete and limestone mixtures treated thermochemically
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 f...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Goiás
2015-03-01
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| Series: | Pesquisa Agropecuária Tropical |
| Subjects: | |
| Online Access: | https://www.revistas.ufg.br/pat/article/view/27917/18165 |
| _version_ | 1818493701271322624 |
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| author | Vanessa Martins Ana Stella Freire Gonçalves Giuliano Marchi Luiz Roberto Guimarães Guilherme Éder de Souza Martins |
| author_facet | Vanessa Martins Ana Stella Freire Gonçalves Giuliano Marchi Luiz Roberto Guimarães Guilherme Éder de Souza Martins |
| author_sort | Vanessa Martins |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-10T17:57:26Z |
| format | Article |
| id | doaj.art-38a5664de010467193bd91ac40c9bc7e |
| institution | Directory Open Access Journal |
| issn | 1983-4063 |
| language | English |
| last_indexed | 2024-12-10T17:57:26Z |
| publishDate | 2015-03-01 |
| publisher | Universidade Federal de Goiás |
| record_format | Article |
| series | Pesquisa Agropecuária Tropical |
| spelling | doaj.art-38a5664de010467193bd91ac40c9bc7e2022-12-22T01:38:53ZengUniversidade Federal de GoiásPesquisa Agropecuária Tropical1983-40632015-03-01451667210.1590/1983-40632015v4527917 Potassium solubilization in verdete and limestone mixtures treated thermochemicallyVanessa Martins0Ana Stella Freire Gonçalves1Giuliano Marchi2Luiz Roberto Guimarães Guilherme3Éder de Souza Martins4Universidade Federal do Piauí (UFPI), Colégio Técnico de Bom Jesus, Bom Jesus, PI, Brasil.Universidade Federal de Lavras (UFLa), Departamento de Ciência do Solo, Lavras, MG, Brasil.Empresa Brasileira de Pesquisa Agropecuária (Embrapa Cerrados), Brasília, DF, Brasil.Universidade Federal de Lavras (UFLa), Departamento de Ciência do Solo, Lavras, MG, Brasil.Empresa Brasileira de Pesquisa Agropecuária (Embrapa Cerrados), Brasília, DF, Brasil.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.https://www.revistas.ufg.br/pat/article/view/27917/18165Calcinationalkaline solubilizationalternative source of potassium |
| spellingShingle | Vanessa Martins Ana Stella Freire Gonçalves Giuliano Marchi Luiz Roberto Guimarães Guilherme Éder de Souza Martins Potassium solubilization in verdete and limestone mixtures treated thermochemically Pesquisa Agropecuária Tropical Calcination alkaline solubilization alternative source of potassium |
| title | 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_short | Potassium solubilization in verdete and limestone mixtures treated thermochemically |
| title_sort | potassium solubilization in verdete and limestone mixtures treated thermochemically |
| topic | Calcination alkaline solubilization alternative source of potassium |
| url | https://www.revistas.ufg.br/pat/article/view/27917/18165 |
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