Activated silica enriched mazzite, production method and application thereof

Abstract

The invention provides an activated silica enriched mazzite having a chemical formula in the anhydrous state, expressed in molar ratios of: a M.sub.2/n O; Al.sub.2 O.sub.3 ; b SiO.sub.2 ; with a variation from 0 to 0.5, M being an alkaline cation of valency n and b being greater than 7, and which has an acid strength corresponding to an amount of heat measured by ammonia absorption microcalorimetry, greater than 190 KJ/mol, and a pore volume, measured by cyclohexane adsorption, greater than 0.09 ml/g. The activated mazzites are useful in the conversion of hydrocarbons, in particular, the isomerization of C.sub.4 to C.sub.8 paraffin, and as molecular sieves in processes for the separation of hydrocarbons.

Dependencies are inferred from the claim text.