PROCESS FOR PRODUCING A CRYSTALLINE SILICATE

摘要

A novel crystalline silicate and a process for the production thereof are described. The novel crystalline silicate is produced by reacting an aqueous mixture containing (a) a silica source, (b) an alumina source, (c) an alkali metal and/or alkaline earth metal source, and (d) methanol in the specific molar ratios at a temperature of 100 to 300 DEG C. The presence of methanol in the reaction system enables to produce crystalline silicates having a novel structure. The composition and X-ray diffraction pattern of the crystalline silicate which has been calcined in air at 550 DEG C are as described in the appended claims. The novel crystalline silicate can be used as a catalyst in various chemical reactions, e.g., in the production of para-xylene by the methylation of toluene, and in the production of an aromatic component-rich gasoline fraction from those hydrocarbons having a low aromatic component content.