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Comparative Analysis of Palygorskite Samples From Different Occurrences in Guadalupe (Piauí, Brazil)
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Palygorskite is a clay mineral that has several industrial and environmental applications. Palygorskite main deposits in Brazil are located in the municipality of Guadalupe, Piauí. A comparative study was performed with five samples of palygorskite from different locations through ore dressing and chemical and mineralogical characterization, using the XRD, XRF and methylene blue titration techniques. According to the results, there are significant differences in the samples composition. Among them, the most significant difference was the cation exchange capacity (CEC) value, which ranged from 24.0 to 41.0 meq.100 g-1, followed by the content of some oxides and the crystalline phases present. Despite coming from the same region, the samples contained distinct impurities.
FapUNIFESP (SciELO)
Tainara Cristina de Assis
Marcelle Cerqueda
Cristiane Gimenes Souza
Tammy Caroline Jesus
Giullia Bertrand Marçano
Karla Mayara Arguelles Simões
Patrícia Viana Rodrigues
Rayssa Paula Paz Furlanetto
Nathalia Oliveira Almeida dos Anjos
Luana Caroline da Silveira Nascimento
Bruna de Lemos Novo
Fernanda Arruda Nogueira Gomes da Silva
Fernanda Veronesi Marinho Pontes
Luciana Spinelli
Lídia Yokoyama
Carla Napoli Barbato
Victor Matheus Joaquim Salgado Campos
Viviane Gomes Teixeira
Francisco Manoel dos Santos Garrido
Luiz Carlos Bertolino
Title: Comparative Analysis of Palygorskite Samples From Different Occurrences in Guadalupe (Piauí, Brazil)
Description:
Palygorskite is a clay mineral that has several industrial and environmental applications.
Palygorskite main deposits in Brazil are located in the municipality of Guadalupe, Piauí.
A comparative study was performed with five samples of palygorskite from different locations through ore dressing and chemical and mineralogical characterization, using the XRD, XRF and methylene blue titration techniques.
According to the results, there are significant differences in the samples composition.
Among them, the most significant difference was the cation exchange capacity (CEC) value, which ranged from 24.
0 to 41.
0 meq.
100 g-1, followed by the content of some oxides and the crystalline phases present.
Despite coming from the same region, the samples contained distinct impurities.
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