Preparation of nitrogenous zeolites and zeolites so prepared.

摘要

A process for preparing nitrogenous zeolites (such as ZSM-5) in which the form of the crystals, such as their shape, size, smoothness or discreteness, is determined by including in the forming solution an organic basic nitrogen compound in addition to the organic nitrogenous template. The forming solution conventional for a given zeolite is supplemented by certain amines or quaternary ammonium compounds in order to achieve the desired effect.