Thompson, Robert W.
Silicalite-1 microspheres using Dowex ion-exchange resin as a macrotemplate were prepared in the size range of .5-.65 mm, using hydrothermal synthesis times of 25 h, 35 h, and 45 h at 80?C. Steaming time and temperature studies were also performed, to deduce the effect on the quality of the calcined product. It was concluded that a 45 h hydrothermal synthesis step followed by steaming for 24 h and calcining up to 550?C for 5 h gave a product with high XRD crystallinity.
Worcester Polytechnic Institute
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