| 摘要 |
PURPOSE:A silica source, an alumina source, alkali metal source, a tetraethylammonium halide as a minerallizer and water are mixed in a specific proportion and subjected to hydrothermal crystallization to readily form mordenite at low costs. CONSTITUTION:A silica source such as colloidal silica, and alumina source, such as sodium aluminate, an alkali metal source such as sodium hydroxide and a tetraethylammonium halid (abbreviated to TEAX as a mineralizer and water are mixed at molar ratios of 10-200 SiO2/Al2O3, 0.5-2 M2O/TEAX (M is alkali metal), 0.1-1 TEAX/SiO2 and 20-500 H2O/TEAX. Then, the mixture is heated at about 75-200 deg.C to effect hydrothermal crystallization. The resultant mordenite crystals are filtered, rinsed dried and roasted to give the objective mordenite.
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