Zeolitas sintetizadas a partir de vidio volcánico en medio alcalino

Abstract

In this work, synthesis studies were performed using a partially zeolitized vitreous tuff (rich in mordenite) from the province of Mendoza, with 0.1, 0.5 and 1 N NaOH solutions at 40 and 95ºC. The process was monitored by X-ray diffraction and scanning electron microscopy. Experiences showed that the material can be homogenized improving its crystallinity, transforming the relict glass and mordenite into a Na-P zeolite of phillipsite-Na family (Na5,7Al5,7Si 10,3O32.12H2O) with subordinate analcime and probable chabazite. The reaction evolution was more effective and fast at 95ºC in 1 N NaOH solution.