Patent ID: 7442367
Filing Date: 2008-10-28
Classification: B01D,C01B

Abstract:
1. A production method for a zeolite shaped body, comprising the steps of: adding a tetrapropylammonium hydroxide (TPAOH) solution and tetrapropylarnmonium bromide (TPABr) to a silica sol in such a manner that mixing ratios [TPAOH/(TPAOH+TPABr) and TPABr/(TPAOH+TPABr)] of tetrapropylammonium hydroxide (TPAOH) and tetrapropylammonium bromide (TPABr) with respect to a total amount of tetrapropylammonium ions (TPA) are adjusted in ranges of 0 to 99 mol % and 100 to 1 mol %; heating thus prepared solution in a sealed vessel under a condition that crystallization and/or precipitation does not occur in the prepared solution; drying the heated prepared solution; shaping an obtained dry gel; and crystallizing the shaped dry gel in steam.