| 摘要 |
<p>A process for the preparation of ferrierite by heating at a temperature between 100 and 200.degree.C an aqueous mixture which contains a compound of an alkali metal (M), a compound of aluminium, a compound of silicon, and piperidine and/or alkylsubstituted piperidine (NR), in which aqueous mixture the various compounds are present in the following molar ratios, which except for piperidine and alkyl-substituted piperidine, are expressed in moles of the oxides: SiO2 : A1203 > 15; H2O : SiO2 = 5-500; NR : SiO2 = 0.05-1.0, and M20 : A1203 > 1.</p> |
