公开(公告)号：US20200009535A1

公开(公告)日：2020-01-09

申请号：US16486914

申请日：2018-02-14

申请人： BASF SE

发明人： Ekaterina TROUSSARD ,  Roman Daniel PILZ ,  Emil ROETH ,  Marco BOSCH ,  Susanne WEBER ,  Peter LOECHER ,  Daniel PFEIFFER ,  Thomas HOLTMANN

IPC分类号： B01J23/50 ,  B01J35/00 ,  B01J35/02 ,  B01J35/06 ,  B01J37/14 ,  B01J37/08 ,  C07C45/00

摘要： The invention relates to a silver-comprising catalyst system for the preparation of aldehydes and/or ketones by oxidative dehydrogenation of alcohols, in particular the oxidative dehydrogenation of methanol to form formaldehyde, comprising a first catalyst layer and a second catalyst layer, wherein the first catalyst layer consists of a silver-comprising material in the form of balls of wire, gauzes or knitteds having a weight per unit area of from 0.3 to 10 kg/m2 and a wire diameter of from 30 to 200 μm and the second catalyst layer consists of a silver-comprising material in the form of granular material having an average particle size of from 0.5 to 5 mm and the two catalyst layers are in direct contact with one another. The invention further relates to a corresponding process for the preparation of aldehydes and/or ketones, in particular of formaldehyde, by oxidative dehydrogenation of corresponding alcohols over a silver-comprising catalyst system.