Patent ID: 7575737
Filing Date: 2009-08-18
Classification: C01B

Abstract:
1. A layered crystalline composition having an empirical composition in the as-synthesized form and on an anhydrous basis expressed by an empirical formula of: where M is at least one exchangeable cation selected from the group consisting of alkali metal ions, alkaline earth metal ions, and rare earth metal ions, “m” is the mole ratio of M to (Al+E) and varies from about 0.05 to about 10.0, R is an organoammonium cation or amine selected from the group consisting of trimethylbutylammonium, diquat-4, pentyltrimethylammonium, choline, ethyltrimethylammonium (ETMA + ), diethyldimethyl ammonium (DEDMA + ), trimethylpropylammonium, dimethyldiethanolammonium, tetraethyl ammonium (TEA + ), tetrapropylammonium (TPA + ), dimethylhexylamine, diethanolamine, and mixtures thereof, “r” is the mole ratio of R to (Al+E) and has a value of about 0.5 to about 10.0, “n” is the weighted average valence of M and has a value of about 1 to about 3, “p” is the weighted average valence of R and has a value of about 1 to about 2, E is an element selected from the group consisting of gallium, iron, boron and mixtures thereof, “x” is the mole fraction of E and has a value from 0 to about 1.0, “y” is the mole ratio of Si to (Al+E) and varies from greater than 10 to about 35 and “z” is the mole ratio of O to (Al+E) and has a value determined by the equation: and is characterized in that it has the x-ray diffraction pattern having at least the d-spacings and intensities set forth in Table A: