Influence of temperature on the thermal decomposition of the zeolitized tuffs of the caimanes deposit
Keywords:
zeolites; caiman deposit; thermal decomposition.Abstract
In the present work, the physicochemical characterization of the zeolitized materials from the Caimanes deposit is carried out through X-Ray Fluorescence, Thermogravimetric analysis, Infrared Spectroscopy with Fourier Transform and in the case of X-Ray Diffraction, the analysis of natural and heat-treated material up to 850ºC is carried out. According to the chemical analysis, the Caimanes zeolite is classified as calcic, with a SiO2 content of 62,12%, Al2O3 of 13,32% and CaO of 5,25 %, formed mainly by Heulandite, associated with other mineralogical phases such as Quartz and Calcite. It was determined that the zeolite is thermally stable up to 400ºC. At higher temperatures, total decomposition of the zeolite occurs, passing through different transition states until its final decomposition and loss of crystallinity, which could be appropriate for use as a pozzolanic material in the production of cement.
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