چکیده مقاله
Acrylic acid is an important industrial chemical, and efficient catalysts for its direct preparation bypropane oxidation are highly desirable For this purpose, neutral silica networks were introduced on thesurface of MoVTeNb mixed oxide catalysts by controlled silylation using a methyl silicate oligomer Thecatalysts were characterized by X ray fluorescence, Fourier transform infrared spectroscopy MoVTeNbmixed oxide was found to be composed of 90 9% M1 phase and 2 3% M2 phase, and upon silylation, thesurface was uniformly covered by a thin SiO2 layer with 0 14 molar ratio with respect to Mo and anestimated thickness of 2 4 nm The number of acid sites decreased after the first three silylation cycles, butwas not affected by repeated cycles
کلیدواژهها
نویسندگان
Hossein Khosravi Rouzbahani
Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
شیوه ارجاع
Khosravi Rouzbahani, Hossein,1399,Catalysts Synthesis and Crystalline Modification of Acrylic Acid Production,Third International Conference on Technology Development in Chemical Engineering,Tehran
ارائهشده در
مجموعه مقالات سومین کنفرانس بین المللی توسعه فناوری در مهندسی شیمی24 اسفند 1399 · تهران