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Method for the preparation of catalysts having enhanced stability, efficiency and/or activity for alkylene oxide production
Method for the preparation of catalysts having enhanced stability, efficiency and/or activity for alkylene oxide production
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机译:制备对环氧烷烃具有增强的稳定性,效率和/或活性的催化剂的制备方法
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摘要
A method for the preparation of a catalyst to be used for the vapor phase epoxidation of alkene comprising:a) mixing zirconium silicate, with carrier raw materials comprising boehmite alumina AlOOH and/or gamma-alumina as a refractory solid support;b) adding a mixture containing an acidic component and fluoride anions to the carrier raw materials with the added zirconium silicate;c) calcining the fluorinated carrier raw materials with the added zirconium silicate at a temperature less than 1540°C to form a modified carrier comprising alpha-alumina, wherein the modified carrier comprises zirconium silicate; andd) depositing one or more silver compounds onto the modified carrier to form a catalyst.
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