| abstract |
The object of the present invention is to provide the methods of five yuan of high-silicon type zeolites compared with the past for having both higher BET specific surface area and more peracid amount and manufacture five yuan of high-silicon type zeolites.Five yuan of high-silicon type zeolites are characterized in that, BET specific surface area 450m 2 / g or more, and in addition, be 0.38mmol/g or more by its acid amount that ammonia-TPD method measures.Five yuan of high-silicon type zeolites can be obtained by following manufacturing method: it has and makes comprising the tetrabutyl Cation, silica source, alumina source, alkali metal source and water crystalline mixture crystallization step, and it is characterized in that alkali metal phase described in the mixture is greater than 0.04 for the molar ratio of the silica and less than 0.10. |