HIGH MESO-SURFACE AREA, LOW Si/Al RATIO PENTASIL ZEOLITE

摘要

A new family of crystalline aluminosilicate zeolites has been synthesized and designated as UZM-54. These zeolites are represented by the empirical formula:; M_mⁿ⁺R_{1 r1}^p₁⁺R_{2 r2}^p₂⁺Al_1-xE_xSi_yO_z ;where M is an alkali, alkaline earth, or rare earth metal such as sodium or strontium, R₁ and R₂ are organoammonium cation and E is a framework element such as gallium, iron, boron, or indium. These zeolites are characterized by unique x-ray diffraction patterns, high meso-surface areas and low Si/Al₂ ratios and have catalytic properties for carrying out various hydrocarbon conversion processes.