公开(公告)号：DE4301470A1

公开(公告)日：1994-07-28

申请号：DE4301470

申请日：1993-01-21

Applicant: BASF AG

Inventor： FETZER THOMAS DR ,  BUECHELE WOLFGANG DR ,  WISTUBA HERMANN DR ,  OTTO BERNHARD DR ,  BUERGER GERT DR ,  PIJL PAUL

IPC: B01D53/56 ,  B01D53/86 ,  B01D53/94 ,  B01J21/04 ,  B01J23/00 ,  B01J23/72 ,  B01J23/76 ,  B01J23/78 ,  B01J23/80 ,  B01J35/10 ,  C07C51/487 ,  B01D53/36 ,  C01B21/20

Abstract: PCT No. PCT/EP94/00081 Sec. 371 Date Mar. 24, 1995 Sec. 102(e) Date Mar. 24, 1995 PCT Filed Jan. 13, 1994 PCT Pub. No. WO94/16798 PCT Pub. Date Aug. 4, 1994A process for the catalytic decomposition of dinitrogen monoxide in a gas stream by contacting the gas stream at temperatures of 200 DEG -900 DEG C. and pressures of 0.1 to 20 bar with a catalyst free of noble metals, the catalyst being prepared by combining a spinel CuAl2O3 with another spinel-forming metal component selected from the group consisting of tin, lead, zinc, magnesium, calcium, strontium and barium or mixtures thereof in elemental form or as an oxide or salt, and calcining at temperatures of 300 DEG -1300 DEG C. and under pressures of 0.1-200 bar in order to at least partially liberate the copper from the spinel by replacement with the other metal component.

公开(公告)号：DE4224881A1

公开(公告)日：1994-02-03

申请号：DE4224881

申请日：1992-07-28

Applicant: BASF AG

Inventor： FETZER THOMAS DR ,  BUECHELE WOLFGANG DR ,  WISTUBA HERMANN DR ,  OTTO BERNHARD DR ,  BUERGER GERT DR ,  HERRMANN GUENTER DR

IPC: B01D53/94 ,  B01D53/56 ,  B01D53/86 ,  B01J23/89 ,  C01B13/02 ,  C07C51/27 ,  C07C51/487 ,  B01J23/50 ,  B01J21/04 ,  B01D53/36 ,  C01B21/02 ,  C07C55/14

Abstract: The invention concerns an aluminium oxide catalyst containing silver, the catalyst containing in addition copper oxide and, optionally, other promoters and active components. This catalyst is used to decompose pure nitrous oxide (N2O) or nitrous oxide in gas mixtures at elevated temperatures, and exhibits high activity.