| 摘要 |
PROBLEM TO BE SOLVED: To obtain a synthetic method of mesopore molecular sieve which can synthesize the molecular sieve under mild conditions, for example, at room temperature under neutral conditions by using a specific dimethylalkylamine oxide as a template. SOLUTION: In the presence of dimethylalkylamine oxide represented by the formula: R(CH3 )2 N→O (R is a 8-20C alkyl), this molecular sieve is synthesized from a mixture of a metal oxide and/or its precursor with an aqueous medium. The metal oxide is preferably at least one selected from boron oxide, aluminum oxide, titanium oxide or their precursors and silica. The metal atomic ratio of silica/other metal oxides is >=5, the molar ratio of silica/the template is 1-30 and the molar ratio of the solvent/the template ranges from 1-1,000. The reaction is carried out at room temperature up to 180 deg.C at a pH of 5-9 for 5-100 hours.
|
