Abstract
Vermiculites are clay minerals similar to montmorillonites differing for crystalline structures. The product exfoliated is odorless, hydrophobic, not irritate the skin and not the lungs. These properties provide the modified thermally vermiculite a product of broad application in the sectors of construction, agriculture and industry. The aim this work is the comparative analysis between two vermiculites micron fractions from different localities of the northeastern Brazilian region, UBM/PB and EUCATEX/PI. Samples exfoliated to 950 deg C were leached for removal of organic matter by oxidation with hydrogen peroxide. The spectroscopy in the infrared, FTIR and X-ray diffraction, XRD, were used to characterize the samples. Data from X-ray diffraction showed that the structural characteristics of the mineral samples were not significantly altered with the process of leaching and the IR spectra proved the efficiency of procedure for removal of organic impurities (author)
Silva, P S;
Hanken, R B.L.;
[1]
Raposo, C M.O.,
[2]
- Universidade Federal de Campina Grande (UAEMa/UFCG), PB (Brazil). Unidade Academica de Engenharia de Materiais
- Universidade Federal de Campina Grande (UAMG/UFCG), PB (Brazil). Unidade Academica de Mineracao e Geologia
Citation Formats
Silva, P S, Hanken, R B.L., and Raposo, C M.O.,.
Vermiculites of the Northeast Brazilian region: comparative analysis; Vermiculitas da regiao do nordeste brasileiro: analise comparativa.
Brazil: N. p.,
2009.
Web.
Silva, P S, Hanken, R B.L., & Raposo, C M.O.,.
Vermiculites of the Northeast Brazilian region: comparative analysis; Vermiculitas da regiao do nordeste brasileiro: analise comparativa.
Brazil.
Silva, P S, Hanken, R B.L., and Raposo, C M.O.,.
2009.
"Vermiculites of the Northeast Brazilian region: comparative analysis; Vermiculitas da regiao do nordeste brasileiro: analise comparativa."
Brazil.
@misc{etde_21513742,
title = {Vermiculites of the Northeast Brazilian region: comparative analysis; Vermiculitas da regiao do nordeste brasileiro: analise comparativa}
author = {Silva, P S, Hanken, R B.L., and Raposo, C M.O.,}
abstractNote = {Vermiculites are clay minerals similar to montmorillonites differing for crystalline structures. The product exfoliated is odorless, hydrophobic, not irritate the skin and not the lungs. These properties provide the modified thermally vermiculite a product of broad application in the sectors of construction, agriculture and industry. The aim this work is the comparative analysis between two vermiculites micron fractions from different localities of the northeastern Brazilian region, UBM/PB and EUCATEX/PI. Samples exfoliated to 950 deg C were leached for removal of organic matter by oxidation with hydrogen peroxide. The spectroscopy in the infrared, FTIR and X-ray diffraction, XRD, were used to characterize the samples. Data from X-ray diffraction showed that the structural characteristics of the mineral samples were not significantly altered with the process of leaching and the IR spectra proved the efficiency of procedure for removal of organic impurities (author)}
place = {Brazil}
year = {2009}
month = {Jul}
}
title = {Vermiculites of the Northeast Brazilian region: comparative analysis; Vermiculitas da regiao do nordeste brasileiro: analise comparativa}
author = {Silva, P S, Hanken, R B.L., and Raposo, C M.O.,}
abstractNote = {Vermiculites are clay minerals similar to montmorillonites differing for crystalline structures. The product exfoliated is odorless, hydrophobic, not irritate the skin and not the lungs. These properties provide the modified thermally vermiculite a product of broad application in the sectors of construction, agriculture and industry. The aim this work is the comparative analysis between two vermiculites micron fractions from different localities of the northeastern Brazilian region, UBM/PB and EUCATEX/PI. Samples exfoliated to 950 deg C were leached for removal of organic matter by oxidation with hydrogen peroxide. The spectroscopy in the infrared, FTIR and X-ray diffraction, XRD, were used to characterize the samples. Data from X-ray diffraction showed that the structural characteristics of the mineral samples were not significantly altered with the process of leaching and the IR spectra proved the efficiency of procedure for removal of organic impurities (author)}
place = {Brazil}
year = {2009}
month = {Jul}
}