Thursday 03- New methods of zeolite synthesis

03-P-06 - Zeolitization of a Spanish bentonite in seawater medium. Effect of alkaline concentration and time 

de Qutmica. Univ Cantabria, blancoc unican.es, Santander (Spain). 

In this study a bentonite was modified to a zeolitic material by alkaline treatment in a seawater medium. The structural and textural characteristics of the clays modified in this medium were determined and compared with those of the natural clay and with those of the clays modified under the same conditions but in distilled water. The samples were characterized by XRD, IR, TG and SEM. The modifications observed in the composition of the resulting zeolitic products depend not only on the NaOH concentration and treatment time but also on the nature of the synthesis media. The zeolitic products synthesized in seawater showed higher crystallinity and less heterogeneity. The treatment can be designed according to the characteristics required for the process in which the zeolitic product will be applied. 

03-P-07 - Silicalite-1 spheres prepared from preformed resin-silicate composites 

Division of Chemical Technology, Lulea University of Technology, Luled, Sweden, luto km. luth.se 

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