公开(公告)号：US07622420B1

公开(公告)日：2009-11-24

申请号：US12454962

申请日：2009-05-27

申请人： Pin-To Yao ,  Chun-Kao Wang ,  Cheng-Fa Hsieh

发明人： Pin-To Yao ,  Chun-Kao Wang ,  Cheng-Fa Hsieh

IPC分类号： B01J23/00 ,  B01J23/38 ,  B01J23/40 ,  B01J23/42 ,  B01J23/44 ,  B01J23/54 ,  B01J23/56 ,  B01J23/60 ,  B01J23/62 ,  B01J23/64 ,  B01J23/644

CPC分类号： B01J23/624 ,  B01J23/62 ,  B01J23/66 ,  B01J27/1856 ,  C01B21/1418

摘要： This invention provides a catalyst composition for preparing hydroxylamine, which comprises palladium, a platinum compound, a germanium compound and a carrier, wherein a halogen concentration of the composition is no more than 10 ppm. The catalyst composition is prevented from poisoning by halogens, and therefore the catalyst composition has high selectivity and catalytic activity. Further, the weight ratio of palladium and platinum in the catalyst composition ranges from 100:1 to 1000:1, such that the catalyst composition can be used to solve the commonly observed problem, i.e., decreased selectivity due to the excessive amount of platinum.

摘要翻译： 本发明提供一种用于制备羟胺的催化剂组合物，其包含钯，铂化合物，锗化合物和载体，其中组合物的卤素浓度不超过10ppm。 催化剂组合物不会被卤素中毒，因此催化剂组合物具有高选择性和催化活性。 此外，催化剂组合物中钯和铂的重量比为100:1-1000:1，使得催化剂组合物可用于解决普遍观察到的问题，即由于铂的过量引起的选择性降低。