| http://www.w3.org/ns/prov#value | - In the zeolites TPZ-3 of the invention, x is within the range of 0.5 to 4, preferably 0.9 to 3.In a model system, zeolite, i.e. a crystalline aluminosilicate, is basically composed of an interconnected structure of tetrahedrons of silica and tetrahedrons of alumina. ##STR1## The charges of the alumina tetrahedrons are neutralized as aresult of incorporation of cations in the crystals.
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