ZEOLITES CONTAINING GALLIUM AND/OR INDIUM, PROCESS FOR PRODUCING THEM AND THEIR USE

摘要

1. Gallium and/or indium-containing zeolites which a) have the following composition SiO2 : (0.20 +- 0.10) [Al2 O3 + M2 O3 ] : (0.15 +- 0.1) [Na2 O + K2 O] : (0.15 +- 0.14) R2 O expressed as molar ratio of oxides ; M being gallium and/or indium and R being tetramethylammonium, and b) have the characteristic X-ray diffraction pattern set forth below in Table 1 Interplanar Spacing Relative Intensity d (A) I/I0 11.50 +- 0.2 very strong 7.56 +- 0.1 weak to medium 6.62 +- 0.1 medium to strong 6.32 +- 0.1 weak 5.74 +- 0.1 weak 4.56 +- 0.1 medium 4.33 +- 0.1 medium to strong 3.76 +- 0.1 very strong 3.58 +- 0.1 medium to strong 3.31 +- 0.1 weak 3.15 +- 0.1 weak to medium 2.84 +- 0.1 strong to very strong 2.68 +- 0.1 weak to medium 2.48 +- 0.1 weak I0 = intensity of the strongest line or peak.