公开(公告)号：DE102008018480A1

公开(公告)日：2008-10-16

申请号：DE102008018480

申请日：2008-04-11

Applicant: BASF SE

Inventor： RUMPF BERND ,  WATZDORF JOBST RUEDIGER VON ,  JOHANN THORSTEN ,  KOPPENHOEFER GERHARD ,  KRUG THOMAS ,  SCHREIBER MICHAEL

IPC: C07C45/38 ,  B01D15/04 ,  B01J23/72 ,  C07C47/127

Abstract: In the production of a vicinal dioxo compound (I) by heterogeneous catalyzed gas phase oxidation of a vicinal dihydroxy compound (II) in presence of oxygen-containing gas over a copper-containing catalyst, the starting material (II) has a reduced overall content of trace elements (III), selected from sodium, chromium, iron, zinc, phosphorus, chlorine and sulfur, of less than 250 ppm.