Affiliation:
1. Centro de Tecnologia Mineral – Rio de Janeiro/RJ – Brazil
2. Universidade Federal do Rio de Janeiro – Rio de Janeiro/RJ – Brazil
3. Instituto Federal de Educação Ciência e Tecnologia do Rio de Janeiro – Duque de Caxias/RJ – Brazil
Abstract
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.
Funder
Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Cited by
2 articles.
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