公开(公告)号：DE4314304A1

公开(公告)日：1993-11-18

申请号：DE4314304

申请日：1993-04-30

Applicant: BASF AG

Inventor： HERZOG KLAUS DR ,  BOECK STEFAN DR ,  MROSS WOLF DIETER DR ,  PLUECKHAN JUERGEN DR ,  BOEHNIG KARL-HEINZ DR ,  GALLEI EWALD DR

IPC: B01J23/68 ,  C07D301/10

Abstract: Novel alkali metal-promoted Ag catalysts claimed for use in direct oxidn. of ethylene to ethylene oxide are characterised by (i) having an alpha-Al oxide porous carrier of BET surface area 0.3-3 m2/g; and (ii) contg. tungsten as co-promoter in an amt., based on total catalyst wt., of 60-330 wt. ppm per m2 surface area per g of the carrier material. Ag content is 10-30 wt.% and the alkali metal is Li, Rb and/or Cs with prefd. amts. based on total catalyst wt., being 200-2000 wt.ppm for Cs and/or Rb and 100-1000 wt.ppm for Li. At least 99 wt.% of the carrier is of high-purity alpha-Al oxide.

公开(公告)号：DE3401197A1

公开(公告)日：1985-07-18

申请号：DE3401197

申请日：1984-01-14

Applicant: BASF AG

Inventor： AGAR DAVID DR ,  JAECKH CHRISTOF DR ,  GALLEI EWALD DR

IPC: B01J19/14 ,  C01B5/00 ,  C01B23/00 ,  C01B21/04

Abstract: Process for catalytic ultrapurification of inert gases by reacting the oxygen contained therein with hydrogen in the presence of Pd catalysts with subsequent adsorption of the residual oxygen on copper-containing adsorbents and by precipitating the water formed, the hydrogen being added, prior to the reaction, to the inert gas to be purified in periodically fluctuating amounts, in such a way that the hydrogen is present, alternately, in substoichiometric or in excess amounts with respect to the oxygen present. Nitrogen and/or argon can be brought to a purity of less than 10 ppm of impurities, especially oxygen.

公开(公告)号：DE3269677D1

公开(公告)日：1986-04-10

申请号：DE3269677

申请日：1982-10-22

Applicant: BASF AG ,  EDELEANU GMBH

Inventor： DUROCHER ALAIN DR ,  GALLEI EWALD DR ,  ANSTOCK THOMAS DR ,  SCHWARZMANN MATTHIAS DR ,  SCHORR VICTOR DR ,  WIRTZ GERHARD

IPC: C10G45/08 ,  C10G45/48

公开(公告)号：DE3164055D1

公开(公告)日：1984-07-19

申请号：DE3164055

申请日：1981-03-04

Applicant: BASF AG

Inventor： SCHWARZ HELMUT DR ,  DOCKNER TONI DR ,  KEMPE UWE DR ,  KRUG HERBERT ,  PRAETORIUS WERNER DR ,  MAGNUSSEN PETER DR ,  GALLEI EWALD DR ,  FEHR ERICH DR

IPC: B01J23/00 ,  B01J27/00 ,  B01J27/19 ,  C07B61/00 ,  C07D233/54 ,  C07D233/56 ,  C07D233/58

Abstract: Imidazoles are prepared by reacting 2-imidazolines at from 250 DEG to 500 DEG C. in the presence of molybdenum oxide and nickel oxide and/or cobalt oxide and aluminum oxide, silicon dioxide and/or silicates as catalysts. The imidazoles obtainable by the process according to the invention are valuable starting materials for the preparation of dyes, crop protection agents, textile auxiliaries, catalysts for polyurethanes and epoxy resins, surfactants and drugs, for example the corresponding nitroimidazoles.

公开(公告)号：DE3160092D1

公开(公告)日：1983-04-07

申请号：DE3160092

申请日：1981-03-04

Applicant: BASF AG

Inventor： DOCKNER TONI DR ,  GALLEI EWALD DR ,  KEMPE UWE DR ,  KRUB HERBERT ,  MAGNUSSEN PETER DR ,  PRAETORIUS WERNER DR ,  SCHWARZ HELMUT DR ,  ROMBERG HELMUT DR

IPC: C07D233/54 ,  C07D233/56 ,  C07D233/58