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    • 1. 发明公开
    • 불균일 촉매 재생방법
    • 异构催化剂再生
    • KR1020000057610A
    • 2000-09-25
    • KR1019997005397
    • 1997-11-27
    • 라이온델 케미칼 테크놀로지, 엘.피.
    • 캐롤,케빈,엠.모랄스,에드릭한,유안-짱
    • B01J21/20
    • B01J38/48B01J21/20C07D301/12Y02P20/584
    • PURPOSE: A catalytic activity of a titanium-containing heterogeneous catalyst such as titania-on-silica which has been used to catalyze olefin epoxidation is effectively restored by washing the catalyst with water, alcohol, ether, nitrile, ester, aromatic hydrocarbon, or ketone. CONSTITUTION: In a method of regenerating a used non-zeolitic heterogeneous catalyst composition comprised of an oxygen compound of silicon in chemical combination with an inorganic oxygen compound of titanium and which has been used to catalyze epoxidation of an olefin using an organic hydroperoxide, the method is characterized by comprising contacting the used heterogenous catalyst composition with a solvent selected from the group consisting of water, alcohols, ketones, ethers, esters, nitriles, aromatic hydrocarbons, and mixtures thereof in the absence of the olefin and the organic hydroperoxide at a temperature of 20°C to 400°C to produce a reactivated heterogeneous catalyst composition. The solvent is selected from the group consisting of water, C1 -C10 aliphatic alcohols, C7 -C12 aralkyl alcohols, C3 -C10 ketones, C2 -C8 aliphatic ethers, C2 -C10 aliphatic nitrites, C3 -C10 aliphatic esters, C6 -C12 aromatic hydrocarbons, and mixtures thereof.
    • 目的:通过用水,醇,醚,腈,酯,芳烃或酮洗涤催化剂,有效地恢复了用于催化烯烃环氧化的含钛非均相催化剂如二氧化钛 - 二氧化硅的催化活性 。 构成:在使用与钛的无机氧化合物化学组合的硅的氧化合物和已经用于使用有机氢过氧化物催化烯烃的环氧化的方法来再生使用的非沸石非均相催化剂组合物的方法中, 其特征在于包括在不存在烯烃和有机氢过氧化物的情况下使用所使用的异种催化剂组合物与选自水,醇,酮,醚,酯,腈,芳族烃及其混合物的溶剂接触温度 的温度为20℃至400℃,以产生再活化的非均相催化剂组合物。 溶剂选自水,C 1 -C 10脂族醇,C 7 -C 12芳烷基醇,C 3 -C 10酮,C 2 -C 8脂族醚,C 2 -C 10脂族亚硝酸酯,C 3 -C 10脂族酯,C 6 -C 12芳族 烃类及其混合物。