Silica/zeolite composite materials in spherical form and process for their preparation
作者： Luigi Balducci , Raffaele Ungarelli , Cristina Tonini
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摘要: The present invention relates to silica/zeolite composite materials in spherical form and the process for their preparation which occurs by dispersion of submicronic particles titanium silicalite, beta zeolite, or mixtures zeolite with a silica sol synthesized acid hydrolysis silicon alkoxides; hybrid thus obtained, subjected emulsification gelation techniques organic mediums, produces these an average diameter between 20 150 μm containing up 70% weight silicalite/beta zeolite. invention, having high mechanical resistance characterized surface area 300 800 m 2 /g, are applied as catalysts; particular, those consisting silicalite advantageously used oxidation reactions compounds hydrogen peroxide.
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