| 摘要 |
PROBLEM TO BE SOLVED: To provide: a method for producing a crystalline aluminum silicate microporous body having grain diameters of≤2μm, by which aluminum can be efficiently introduced under a mild condition, to provide the crystalline microporous body being industrially usable, a crystalline microporous molded article, and to provide a crystalline microporous body which exhibits high performances in applications such as a catalyst. SOLUTION: The method for producing the crystalline aluminum silicate microporous body is characterized by including following processes (1) to (4): (1) a mixing process for preparing an alkaline mixed liquid containing kanemite, an alumina precursor, and at least one kind of crystallization adjusting agent selected from ammonium compounds, phosphonium compounds or amines and agitating the mixed liquid for six hours or over; (2) a neutralization process for neutralizing the mixed liquid obtained in the process (1) so that the pH of the mixed liquid becomes 7.6 to 8.4; (3) a solid-liquid separation process for separating fine particles deposited in the mixed liquid neutralized in the process (2) from the mixed liquid; and (4) a crystallization process for crystallizing the fine particles separated from the liquid by heating them. The crystalline aluminum silicate microporous body is produced by the method. COPYRIGHT: (C)2009,JPO&INPIT
|
