| 摘要 |
<p>A production method of zeolite beta is disclosed, wherein amorphous aluminosilicate having molar ratios of SiO2/Al2O3 10 SIMILAR 200, (10:1 to 200:1) and M2O/Al2O3 0.8 SIMILAR 1.2 (0.8:1 to 1.2:1> (wherein M means an alkali metal), obtained by continuously reacting raw materials for a specific time under conditions of temperature of 0 to 55 DEG C and pH of 5 to 9, is contacted with alkali metal hydroxide, tetraethylammonium compound and water at molar ratios of: SiO2/Al2O3 10 SIMILAR 200 (10:1 to 200:1), M2O/SiO2 0.01 SIMILAR 1 (0.01:1 to 1:1> H2O/SiO2 8 SIMILAR 30 (8:1 to 30:1) and R2O/SiO2 0.05 SIMILAR 0.7 (0.05:1 to 0.7:1> (wherein R means tetraethylammonium), for 24 to 120 hours at 70 to 160 DEG C to crystallise.</p> |
