Catalyst cupporter material and use thereof

一种制备催化剂载体材料的方法，包括以下步骤：(a)对使用过的负载在氧化硅上的氧化钛催化剂进行除焦处理，(b)用一种选自无机酸水溶液、铵盐水溶液和它们组合的洗涤液体对所述除焦催化剂进行洗涤，和(c)干燥和煅烧所述洗涤和除焦的催化剂，得到催化剂载体材料。经此得到的载体材料可合适用作烯烃环氧化为烯化氧的多相催化剂中氧化钛的载体材料。 A process for the preparation of a catalyst support material involving the steps of: (a) subjecting a used titania-on-silica catalyst to a decoking treatment, (b) washing the decoked catalyst with a washing liquid selected from an aqueous solution of a mineral acid, an aqueous solution of an ammonium salt and combinations thereof, and (c) drying and calcining the washed and decoked catalyst to yield the catalyst support material. The support material thus obtained is suitably used as support material for titania in a heterogeneous catalyst for the epoxidation of olefins into alkylene oxides.