Patent ID: 6521207
Filing Date: 2003-02-18
Classification: B01J,C01B,Y10S

Abstract:
A method for the production of a molding of binderless zeolite, which comprises:supporting on a molding of silica a raw material substance comprising a tetraalkylammonium component containing 1-5 carbon atoms in the alkyl group thereof, an alkali metal component, and, optionally a metal component to be incorporated into the crystal skeleton of zeolite to form a zeolite precursor represented by the formula (1): Si(SDA)xMyQzâ€ƒâ€ƒ(1) â€ƒwherein SDA denotes a tetraalkylammonium, M an alkali metal, Q a metal (excluding silicon) to be incorporated into the crystal skeleton of zeolite, x a numeral in the range of 0.001-1, y a numeral in the range of 0.0001-1, and z a numeral in the range of 0-0.5; drying the precursor; and exposing the dried precursor to saturated steam.