Patent ID: 6306364
Filing Date: 2001-10-23
Classification: C01B,Y10S

Abstract:
A crystalline stannosilicate molecular sieve having a microporous three dimensional structure containing SiO.sub.2 and SnO.sub.2 tetrahedral oxide units, and at least one of TiO.sub.2 or GeO.sub.2 tetrahedral oxide units, a crystallographically regular pore system, and an empirical formula on a calcined and anhydrous basis of:(Sn.sub.x Ti.sub.y Si.sub.1-x-y-z Ge.sub.z)O.sub.2where ""x"" is the mole fraction of tin and varies from about 0.001 to about 0.1, ""y"" is the mole fraction of titanium and varies from zero to about 0.1, ""z"" is the mole fraction of germanium and varies from zero to less than about 0.08 and ""y"" and ""z"" are not both simultaneously zero and characterized in that the composition has the characteristic x-ray diffraction pattern of zeolite beta.