公开(公告)号：CA1053248A

公开(公告)日：1979-04-24

申请号：CA262962

申请日：1976-10-07

Applicant: BASF AG

Inventor： BLECHSCHMITT KURT ,  REUTER PETER ,  WIRTH FRIEDRICH ,  HORNBERGER PAUL

IPC: C07D307/89 ,  B01J23/00 ,  B01J27/00 ,  C07C51/265 ,  C07C51/31

Abstract: A process for the manufacture of phthalic anhydride by oxidizing o-xylene and/or naphthalene over a supported catalyst containing vanadium pentoxide and titanium dioxide, at from 350.degree. to 500.degree.C, in which the o-xylene or naphthalene is passed, with an oxygen-containing carrier gas, over the catalyst, and in which the catalyst in the first 25-50 per cent by volume of the total catalyst volume, in the direction of flow of the mixture of .alpha.-xylene or naphthalene and carrier gas, containe from 0.001 to 0.3 per cent by weight, based on titanium dioxide, of rubidium, but no phosphorus, in the active composition, whilst the remainder of the catalyst contains from 0.02 to 0.8 per cent by weight, based on titanium dioxide, of phosphorus, but no rubidium, in the active composition.

公开(公告)号：CA1031356A

公开(公告)日：1978-05-16

申请号：CA210220

申请日：1974-09-27

Applicant: BASF AG

Inventor： WIRTH FRIEDRICH ,  RICKER ERNST ,  POEHLER GUENTER

IPC: C07D307/89 ,  B01J23/00 ,  B01J23/22 ,  B01J37/02 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31

公开(公告)号：CA1015533A

公开(公告)日：1977-08-16

申请号：CA194355

申请日：1974-03-07

Applicant: BASF AG

Inventor： WIRTH FRIEDRICH ,  BUERGER GERT ,  WAGNER JOACHIM ,  SCHOENBERGER EBERHARD ,  KASSAT HARRY ,  KOLENDA HERBERT

IPC: B01D5/00 ,  B01D7/02 ,  B01D8/00 ,  C07C51/573 ,  C07D307/89 ,  F28F9/013

公开(公告)号：BE601125A

公开(公告)日：1961-09-11

申请号：BE601125

申请日：1961-03-09

Applicant: BASF AG

Inventor： SAND JAKOB ,  PLATZ ROLF ,  WIRTH FRIEDRICH

IPC: C07C

公开(公告)号：CA1168208A

公开(公告)日：1984-05-29

申请号：CA396272

申请日：1982-02-15

Applicant: BASF AG

Inventor： REUTER PETER ,  BLECHSCHMITT KURT ,  WIRTH FRIEDRICH

IPC: C07D307/89 ,  B01J23/92 ,  B01J27/28 ,  B01J27/32 ,  B01J37/20 ,  B01J37/28 ,  B01J38/12 ,  B01J38/20 ,  C07B61/00 ,  C07C51/265 ,  B01J23/22

Abstract: O.Z. 0050/34985 A process for reactivating a vanadium-containing oxidation catalyst, wherein the catalyst is treated first at from 100 to 600.degree.C, with a volatile phosphorus compound in the presence of an oxygen-containing gas, and then at from 50 to 600.degree.C with sulfur trioxide or a mixture of a volatile sulfur compound and an oxygen-containing gas.

公开(公告)号：CA1144913A

公开(公告)日：1983-04-19

申请号：CA349042

申请日：1980-04-02

Applicant: BASF AG

Inventor： REUTER PETER ,  BLECHSCHMITT KURT ,  WIRTH FRIEDRICH

IPC: C07D307/89 ,  B01J21/06 ,  B01J23/22 ,  B01J35/02 ,  B01J35/04 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31 ,  C07D307/83

Abstract: of the disclosure: A supported catalyst, containing vanadium and titanium and/or zirconium, obtained by applying a mixture of finely divided titanium dioxide and/or zirconium dioxide, and a solution or suspension of a vanadium compound, to an inert, non-porous, ringshaped carrier having an external diameter of from 6 to 10 mm, a length of from 4 to 10 mm and a wall thickness of from 0.5 to 3 mm, the two end faces of the ringshaped carrier being outwardly beveled at an angle such that the length of the outer cylindrical wall is at least 20 % shorter than the length of the inner cylindrical wall.

公开(公告)号：CA1074287A

公开(公告)日：1980-03-25

申请号：CA246066

申请日：1976-02-18

Applicant: BASF AG

Inventor： BLECHSCHMITT KURT ,  REUTER PETER ,  WIRTH FRIEDRICH ,  BUERGER GERT ,  SEUBERT ROLF

IPC: C07D307/89 ,  B01J23/22 ,  B01J35/02 ,  B01J35/04 ,  B01J37/02 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31 ,  B01J21/06

Abstract: A supported catalyst containing vanadium and titanium and/or zirconium comprising a ring-shaped carrier having an external diameter of from 7.3 to 8.6 mm, a length of from 5.3 to 7 mm and a wall thickness of from 0.1 to 2 mm, and an active composition, applied thereto, of from 1 to 30 per cent by weight of vanadium pentoxide and from 70 to 99 per cent by weight of titanium dioxide and/or zirconium dioxide. This catalyst can be used for the manufacture of phthalic anhydride by catalytic oxidation of o-xylene or naphthalene with air.

公开(公告)号：CA1067884A

公开(公告)日：1979-12-11

申请号：CA230777

申请日：1975-07-04

Applicant: BASF AG

Inventor： BLECHSCHMITT KURT ,  WIRTH FRIEDRICH ,  HORNBERGER PAUL ,  REUTER PETER ,  BUERGER GERT

IPC: C07D307/89 ,  B01J23/22 ,  C07B61/00 ,  C07C51/265 ,  C07C51/31 ,  B01J21/06 ,  B01J23/04

Abstract: Supported catalyst for the oxidation of o-xylene or naphthalene to phthalic anhydride, comprising an inert carrier and the active material applied thereto, which contains from 1 to 40 per cent by weight of vanadium pentoxide, from 60 to 98.84 per cent by weight of titanium dioxide and from 0.16 to 0.6 per cent by weight, based on titanium dioxide, of rubidium, the vanadium pentoxide content being from 0.05 to 4 per cent by weight, based on the (complete) catalyst.

公开(公告)号：CA881494A

公开(公告)日：1971-09-21

申请号：CA881494D

Applicant: BASF AG

Inventor： WIRTH FRIEDRICH ,  MANN WALTER ,  SCHAEFER GERHARD ,  SUTER HUBERT

公开(公告)号：CA846838A

公开(公告)日：1970-07-14

申请号：CA846838D

Applicant: BASF AG

Inventor： WALTER JOHANN H ,  WIRTH FRIEDRICH ,  POEHLER GUENTER ,  SUTER HUBERT