MOLECULAR SIEVE HAVING CHARGED OCTAGONAL TITANIUM AND TETRAGONAL ALUMINUM PARTS AND LARGE PORES

摘要

PURPOSE: To provide the molecular sieve of a crystalline-titaniumaluminum- silicate adequate for a catalyst for catalytic cracking of hydrocarbon, etc., by forming this sieve of a compsn. consisting of specific ratios of a cation oxide, TiO₂, AlO₂, SiO₂ and HO₂. ;CONSTITUTION: This molecular sieve consists of the crystallinetitanium- aluminum-silicate having the compsn. expressed by formula (M is at least one cation having balance of n value; x is 0.01 to 5; y is 2,5 to 25; z is 0 to 100). The molecular sieve has large pores of nearly 9 angstrom unit. Further, the sieve has the X-ray powder diffraction diagram stated in Table (VS=60 to 100; S=40 to 60; M=20 to 40; W=5 to 20). The sieve has the charged tetrahedrally coordinated aluminum in its framework and has further the charged octahedrally coordinated titanium in its framework.;COPYRIGHT: (C)1991,JPO