Abstract
A method for enhancing the activity of a crystalline zeolite, including a zeolite having a silica-to-alumina ratio greater than 100, is disclosed which involves compositing and extruding the zeolite with an alumina support matrix, vacuum impregnating the extrudate with an aqueous solution of an alkali metal fluoride, contacting the impregnated extrudate with a warm aqueous solution of an ammonium salt and then calcining the final product.
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