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    • 10. 发明授权
    • Supported copper catalyst, process for its preparation and process for
the preparation of N-alkylated aromatic amines using this copper
catalyst
    • 支持铜催化剂,其制备方法及使用该铜催化剂制备N-烷基化芳族氨基酸的方法
    • US5097071A
    • 1992-03-17
    • US585590
    • 1990-09-20
    • Otto ImmelHans-Helmut SchwarzRudolf Braden
    • Otto ImmelHans-Helmut SchwarzRudolf Braden
    • B01J23/889C07B61/00C07C209/18C07C209/36C07C211/48
    • B01J23/8892C07C209/18C07C209/36
    • The novel copper catalyst on an Al.sub.2 O.sub.3 -containing carrier which is impregnated with compounds of manganese and of one or more rare earth metals, having a Cu content of 0.1-5% by weight, a total content of compounds of manganese and of the rare earth metal or metals of 0.05 to 8% by weight, calculated as metals, is described, the weight ratio of rare earth metal(s) to manganese being 5:1-1:5, calculated as metal, and all percentages being relative to the total weight of the catalyst. Such catalyst is prepared by first impregnating the carrier with compounds of manganese and of the rare earth metal or metals, then fixing the copper salt on the impregnated carrier and activating the catalyst in a preferred manner by treatment with H.sub.2 at 150.degree. to 350.degree. C. Such a catalyst is suitable, for example, for the N-alkylation of aromatic amines with alkanols, where the aromatic amines can be prepared from the parent nitro compounds in an alkylation reactor with simultaneous addition of H.sub.2.
    • 在含有Al 2 O 3的载体上的新型铜催化剂,其浸渍有锰和一种或多种稀土金属的化合物,其Cu含量为0.1-5重量%,锰和稀土化合物的总含量 以金属计算为0.05〜8重量%的金属或金属,稀土金属与锰的重量比为5:1-1:5,以金属计算,所有百分比均相对于 催化剂的总重量。 这种催化剂是通过首先用锰和稀土金属或金属的化合物浸渍载体,然后将铜盐固定在浸渍的载体上并以优选的方式通过在150-350℃下用H 2处理来活化催化剂来制备的。 这种催化剂适用于芳族胺与链烷醇的N-烷基化,其中芳族胺可以在烷基化反应器中由母体硝基化合物制备,同时加入H 2。