تحضير و دراسة زيولايت ذو مواصفات حفازية من خامي السيليكا و البوكسايت

الملخص EN

The research included a method for preparing a zeolite by utilizing the components of clay mineral ores (silica and alumina).

The two ores (/Local Silica and Bauxite) were studied through chemical analysis, X-ray diffraction and fluorescence.

The results showed that they contained good quantities of these two substances, which were converted into sodium silicate and sodium aluminate, then the zeolite was prepared by hydrothermal method at (pH=11) in the presence of the structural directing agent (tri ethyl amine) then converted to the formula (H-zeolite) to improve its acidic properties, And then a number of measurements have been done for the prepared zeolite, which is a thermo gravimetric analysis (TGA) ,it showed that it contains amounts of moisture and crystallization water as well as its thermal stability at (700°C).

As for the results of X-ray diffraction (XRD), it showed its good crystallization rate and its possession of a crystalline cube system, and the measurement of X-ray fluorescence (XRF) showed that it had a high percentage of silicon and aluminum, this indicates a balanced and equal interaction between these two materials when preparing of zeolite.

The measurement of the scanning electron microscope (SEM) showed the high pore system and the fine particles that were around (18.17 nm), Finally the measurement of adsorption by the (BET) technique that explained the prepared zeolite have a high surface area (244.3766 m2/g).