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    • 16. 发明授权
    • Process of preparing catalyst for producing alkenyl acetates
    • 制备炔基乙酸酯催化剂的方法
    • US06303536B1
    • 2001-10-16
    • US09374662
    • 1999-08-16
    • Shien-Chang ChenFu-Shen LinYuh-Lih JongPi-Fwu Jang
    • Shien-Chang ChenFu-Shen LinYuh-Lih JongPi-Fwu Jang
    • B01J2300
    • C07C67/055B01J23/52B01J23/58B01J23/8946B01J37/0201B01J37/03B01J37/18C07C69/007C07C69/01C07C69/15C07C69/155
    • This invention relates to a preparation process of a catalyst which comprises a noble metal and a metal as catalysis promoter in combination with an alkali or alkaline earth metal compound, supported on the outer surface of a carrier. The preparation process comprises impregnating the carrier with a solution containing an oxidative state noble metal as the main catalyst and an oxidative state metal as catalysis promoter, reducing the oxidative state metals into the metallic state in gaseous phase with a gaseous reducing agent under certain temperature, pressure, moisture and gas concentration, then impregnating the reduced carrier with a solution of an alkali or alkaline earth metal compound. The metal components-supporting catalyst prepared by the process according to the present invention has a high surface area and exhibits high catalytic activity, which leads to increase the catalytic efficiency and life of this heterogeneous catalyst. The catalyst prepared in the present invention is suitable for producing alkenyl acetates through reaction of olefins, acetic acid and oxygen in vapor phase.
    • 本发明涉及一种催化剂的制备方法,该催化剂包含贵金属和金属作为催化促进剂与碱金属或碱土金属化合物的组合,负载在载体的外表面上。 制备方法包括用包含氧化态贵金属作为主要催化剂的溶液和作为催化促进剂的氧化态金属浸渍载体,在一定温度下用气态还原剂将氧化态金属还原成金属状态, 压力,水分和气体浓度,然后用碱金属或碱土金属化合物的溶液浸渍还原的载体。 通过本发明方法制备的金属组分载体催化剂具有较高的表面积,并具有较高的催化活性,从而提高了该催化剂的催化效率和寿命。 在本发明中制备的催化剂适用于通过气相中烯烃,乙酸和氧气的反应生产烯基乙酸酯。