Patent ID: 6200463
Filing Date: 2001-03-13
Classification: B01J,C10G

Abstract:
A crystalline zeolitic aluminosilicate composition having at least some of its original framework aluminum atoms replaced by extraneous silicon atoms and having a mole ratio of oxides in the anhydrous state ofaM.sub.2/n O:Al.sub.2 O.sub.3 :xSiO.sub.2where M is a cation of valence ""n"", ""a"" has a value of about 0.90.+-.0.2 and ""x"" has a value of greater than 11, the composition characterized in that it has the framework structure of EMT, a cation equivalency of at least 0.7 and an oxygen adsorption capacity of at least 70% of its theoretical capacity as measured at 100 torr and 90.degree. K.