公开(公告)号：US6140539A

公开(公告)日：2000-10-31

申请号：US518620

申请日：2000-03-03

申请人： Michael Sander ,  Dietmar Peisker ,  Klaus Werner ,  Holger Braunsberg ,  Gunter Georgi ,  Ulrich Penzel

发明人： Michael Sander ,  Dietmar Peisker ,  Klaus Werner ,  Holger Braunsberg ,  Gunter Georgi ,  Ulrich Penzel

IPC分类号： B01J35/02 ,  B01J21/06 ,  B01J23/755 ,  B01J35/10 ,  C07B61/00 ,  C07C209/36 ,  C07C211/50 ,  C07C209/00

CPC分类号： C07C209/36 ,  B01J35/0013 ,  B01J35/0053 ,  B01J35/006 ,  B01J21/06 ,  B01J21/066 ,  B01J23/755

摘要： In a process for preparing amines, in which at least one compound containing at least one nitro group is reacted with hydrogen in the presence of a supported catalyst comprising, as catalytically active metal, nickel, if desired together with at least one metal of transition group I, V, VI and/or VIII, the reduced and stabilized supported catalyst comprises nickel crystallites having a bimodal nickel crystallite size distribution having maxima at 30-80 Angstrom and 81-150 Angstrom on a support comprising ZrO.sub.2, ZrO.sub.2 --HfO.sub.2 and/or SiO.sub.2 --ZrO.sub.2 and/or SiO.sub.2 --ZrO.sub.2 --HfO.sub.2 and in the reduced and passivated state has a nickel content of 60-80 percent by mass, an SiO.sub.2 content of 0-20 percent by mass, a ZrO.sub.2 content of 0-40 percent by mass, an HfO.sub.2 content of 0-4 percent by mass and after further reduction for one hour at 100.degree. C. has a degree of reduction of at least 70%.

摘要翻译： 在制备胺的方法中，其中至少一种含有至少一个硝基的化合物与氢在负载型催化剂的存在下反应，所述负载型催化剂包含作为催化活性金属的镍，如果需要，连同至少一种过渡金属金属 I，V，VI和/或VIII中，还原和稳定的负载型催化剂包括镍微晶，其具有在30-80埃的范围内具有最大值的双峰镍微晶尺寸分布，uml + EE m和81-150埃格列酮+ 在包含ZrO 2，ZrO 2-HfO 2和/或SiO 2 -ZrO 2和/或SiO 2 -ZrO 2 HfO 2的载体上的o + EE m，并且在还原和钝化状态下，镍含量为60-80质量％，SiO 2含量 0〜20质量％，ZrO 2含量为0〜40质量％，HfO 2含量为0〜4质量％，在100℃下进一步还原1小时后，其还原率为70％以上， 。