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Study of Variables in the Organofilization Process of Bentonite Clays from Cubati, PB, Brazil, with Ionic Surfactants
Abstract:
Organoclays are used as disperse agent in the composition of drilling fluids, which play important roles during the drilling of petroleum wells. This work is intended to develop several kinds of smectite from Cubati-PB for use in drilling fluids, using the ionic surfactant Praepagen WB. The following materials were used: natural Gray and Superior Green bentonite, from the town of Cubati-PB, and quaternary ammonium salts: Praepagen WB® with 45% active matter. The organoclays were characterized by laser diffraction granulometric analysis, chemical composition by X-ray fluorescence, thermogravimetric analysis, differential thermal analysis and X-ray diffraction. In general, we noticed that the clays present diffractograms and thermal behavior typical of bentonites. The results showed that the studied clay has potential for organofilization. With respect to the process variables, we observed that they do not interfere in the organofilization process.
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492-497
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Online since:
September 2014
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© 2015 Trans Tech Publications Ltd. All Rights Reserved
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