MEL TYPE BINDERLESS ZEOLITTE MOLDING, AND ITS PRODUCTION PROCESS AND USE

摘要

PROBLEM TO BE SOLVED: To provide a binderless molding comprising of substantially MEL type zeolite itself. SOLUTION: The binderless zeolite molding and its production process comprises bringing a zeolite precursor of the formula: Sil(TBA)xM1yM2z (TBA is tetrabutylammonium; M1 is an alkali metal; M2 is a metal element incorporated in metallosilicate crystal structure; x is 0.001-1, y is 0.0001-1, z is 0-0.4) into contact with a saturated steam of 80-260 deg.C.