公开(公告)号：CA1206464A

公开(公告)日：1986-06-24

申请号：CA423155

申请日：1983-03-09

Applicant: BASF AG

Inventor： KRABETZ RICHARD ,  DUEMBGEN GERD ,  NEES FRIEDBERT ,  MERGER FRANZ ,  FOUQUET GERD

IPC: B01J27/18 ,  B01J27/188 ,  B01J27/19 ,  B01J27/195 ,  C07B61/00 ,  C07C51/00 ,  C07C51/235 ,  C07C57/055 ,  C07C67/00 ,  C07C57/05

Abstract: Oxidation catalysts of the general formula Mo12PaWbSbcAsdCueXfOx where X is Nb, Fe, Mn, Sn and/or Cr, a is 0.1-3, b is 0.1-4, c is >0-2, d is 0-1, e is 0-1, d + e is >0-2, f is 0-1.5, e + f is 0-2 and x is the number of oxygen atoms formally required to saturate the valencies of the other catalyst components, may be used particularly advantageously for the preparation of methacrylic acid by gas phase oxidation of methacrolein.

公开(公告)号：CA1194037A

公开(公告)日：1985-09-24

申请号：CA425444

申请日：1983-04-07

Applicant: BASF AG

Inventor： DUEMBGEN GERD ,  FOUQUET GERD ,  KRABETZ RICHARD ,  LUCAS EKHART ,  MERGER FRANZ ,  NEES FRIEDBERT

IPC: B01J31/00 ,  B01J31/04 ,  C07B61/00 ,  C07C45/00 ,  C07C45/75 ,  C07C47/21 ,  C07C47/22 ,  C07C67/00

Abstract: .alpha.-Alkylacroleins are prepared by a process wherein an alkanal is reacted with formaldehyde in the presence of a secondary amine and, if desired, of an acid, in the liquid phase, under superatmospheric pressure and at above 150.degree.C, for not more than 25 minutes. The .alpha.-alkylacroleins obtainable by the process are useful starting materials for dyes, drugs and pesticides.

公开(公告)号：CA855531A

公开(公告)日：1970-11-10

申请号：CA855531D

Applicant: BASF AG

Inventor： GRABOWSKY OTTO ,  DUEMBGEN GERD ,  SPERBER HEINRICH ,  WOERNER ALFRED ,  HAAS HANS

公开(公告)号：CA1212933A

公开(公告)日：1986-10-21

申请号：CA448003

申请日：1984-02-22

Applicant: BASF AG

Inventor： BAER KARL ,  BASSLER PETER ,  DUEMBGEN GERD ,  FOUQUET GERD ,  KRABETZ RICHARD ,  MERGER FRANZ ,  NEES FRIEDBERT

IPC: C07C69/54 ,  B01J23/00 ,  B01J23/06 ,  B01J23/62 ,  C07B61/00 ,  C07C67/39

Abstract: Catalysts for the preparation of carboxylates from an aldehyde and an alkanol in the presence of oxygen, which contain palladium and lead as active components, these being present on a carrier containing zinc oxide, and the palladium being applied as a palladium salt in a solution containing hydrochloric acid and then being liberated by reduction, and whose carrier consists solely of zinc oxide, are particularly active and selective.

公开(公告)号：DK250184D0

公开(公告)日：1984-05-22

申请号：DK250184

申请日：1984-05-22

Applicant: BASF AG ,  LINDE AG

Inventor： BROECKER FRANZ JOSEF ,  DUEMBGEN GERD ,  PIES WOLFGANG ,  SCHLICHTHAERLE GOTTFRIED

IPC: C07C29/15 ,  C07C29/154 ,  C07C31/04 ,  C07C31

Abstract: Methanol is prepared by catalytic conversion of a synthesis gas mixture, containing hydrogen, carbon monoxide, carbon dioxide and/or water, at from 200 DEG to 320 DEG C. and under from 30 to 300 bar in adiabatic and/or isothermal reactions in the presence of a catalyst containing copper and zinc, by a process in which the fresh catalyst is reduced with a hydrogen-containing gas before the start-up of the process, and then the synthesis is started under conventional conditions and is continued until the formation of methanol in the reaction zone has declined substantially, after which the reaction is interrupted and the catalyst is regenerated.

公开(公告)号：CA1037060A

公开(公告)日：1978-08-22

申请号：CA182867

申请日：1973-10-09

Applicant: BASF AG

Inventor： KRABETZ RICHARD ,  ENGELBACH HEINZ ,  LEBERT ULRICH ,  FREY WALTER ,  DUEMBGEN GERD ,  THIESSEN FRITZ ,  WILLERSINN CARL-HEINZ

IPC: C07C47/22 ,  B01J21/00 ,  B01J23/00 ,  B01J23/28 ,  B01J23/31 ,  B01J23/88 ,  B01J23/887 ,  B01J23/888 ,  C07B61/00 ,  C07C45/00 ,  C07C45/34 ,  C07C45/35 ,  C07C51/25 ,  C07C67/00 ,  C07C255/08 ,  C07C45/04

Abstract: In the oxidation of .alpha.-olefins in the gas phase to a, .beta.-olefinically unsaturated aldehydes with molecular oxygen in the presence of an inert gas using a catalyst containing molybdenum and bismuth with elements as oxides or mixed oxides at from 280.degree. to 450.degree.C, a content of indium and/or lanthanum as oxide or mixed oxide results in an improvement in the conversion and/or activity and/or life of the catalyst.

公开(公告)号：CA894255A

公开(公告)日：1972-02-29

申请号：CA894255D

Applicant: BASF AG

Inventor： NAGEL OTTO ,  DUEMBGEN GERD ,  HEESEMANN GUENTHER ,  HOHENSCHUTZ HEINZ ,  WALZ HELMUT ,  ROTHE ROBERT ,  KERBER HORST