| abstract |
PROBLEM TO BE SOLVED: To provide a BEA-type metallosilicate having a large content of trivalent metal and a fine crystal grain size as compared with the prior art. Also, an efficient manufacturing method is provided. SOLUTION: A powdery raw material composition containing a trivalent metal salt, a silica source such as tetraalkyl orthosilicate, and a non-volatile structural indicator having a tetraethylammonium ion or the like is heated at 50 to 140 ° C. Contact with steam only. |