公开(公告)号：JPH11128732A

公开(公告)日：1999-05-18

申请号：JP24057698

申请日：1998-08-26

Applicant: BASF AG

Inventor： HORN HANS CHRISTOPH DR ,  KUMBERGER OTTO DR ,  MILIES MARCO DR ,  NETH NORBERT DR ,  WOLFGANG JUERGEN ,  RIEKER CHRISTOPHER WILLIAM DR ,  SPRAGUE MICHAEL JOLYON DR ,  STROEZEL MANFRED

IPC: B01J19/18 ,  B01F5/00 ,  B01F5/06 ,  B01F7/00 ,  B01F7/22 ,  B01F15/02 ,  B01F15/06 ,  B01J14/00 ,  B01J19/00 ,  C01G1/00

Abstract: PROBLEM TO BE SOLVED: To produce a high quality solid by precipitation by supplying a plurality of starting materials to a mixing chamber of a mixing apparatus comprising stirring blades through inlets formed in the circumferential wall of the chamber and discharging the resultant mixture containing the solid produced by mixing out of an outlet formed in the circumferential wall of the mixing chamber. SOLUTION: In the case of production of a solid such as carbonates, hydroxycarbonates, hydroxides to be used as precursors of catalysts or the simple substances, a plurality of starting substances are supplied to a mixing apparatus 3 through conduits 1, 2 especially in a manner that the resultant slurry comes to the center of impellers and at the same time sodium carbonate and a metal salt solution are added form side faces. Then, precipitation reaction is caused in the mixing apparatus 3 and the obtained mixture is supplied to a degassing tank 5 provided with a stirring apparatus 6 through a conduit 4. A partial flow of the product is turned back to the mixing apparatus 3 through a conduit 7 by a pump 8 and at that time, the temperature of the mixing apparatus 3 is adjusted to be at the demanded temperature by a heat exchanger 9.

公开(公告)号：DE58900473D1

公开(公告)日：1992-01-02

申请号：DE58900473

申请日：1989-07-01

Applicant: BASF AG

Inventor： HOELDERICH WOLFGANG DR ,  DREWS RONALD DR ,  SCHEIDSTEGER OLAF DR ,  NETH NORBERT DR ,  HESS KLAUS DR

IPC: B01D53/86 ,  B01J23/92 ,  B01J38/60 ,  B01J38/64 ,  B01D53/36

公开(公告)号：DE59102216D1

公开(公告)日：1994-08-25

申请号：DE59102216

申请日：1991-02-21

Applicant: BASF AG

Inventor： DREWS RONALD DR ,  HOELDERICH WOLFGANG DR ,  SCHEIDSTEGER OLAF DR ,  NETH NORBERT DR

IPC: B01D53/86 ,  B01J23/92 ,  B01J37/00 ,  B01J38/00 ,  B01J38/64 ,  B01J38/68

公开(公告)号：DE4006918A1

公开(公告)日：1991-09-12

申请号：DE4006918

申请日：1990-03-06

Applicant: BASF AG

Inventor： DREWS RONALD DR ,  HOELDERICH WOLFGANG DR ,  SCHEIDSTEGER OLAF DR ,  NETH NORBERT DR

IPC: B01D53/86 ,  B01J23/92 ,  B01J37/00 ,  B01J38/00 ,  B01J38/64 ,  B01J38/68

公开(公告)号：DE3333679A1

公开(公告)日：1985-04-04

申请号：DE3333679

申请日：1983-09-17

Applicant: BASF AG

Inventor： GEIERHAAS HERBERT DR ,  NETH NORBERT DR ,  ADLKOFER JUERGEN DR

IPC: B01D53/86 ,  B01J23/85 ,  C01B17/50 ,  B01D53/36 ,  C01B17/48

Abstract: In the oxidation of hydrogen sulphide contained in exhaust gases and/or organic sulphur compounds, catalysts are used which contain a) cobalt oxide and b) tungsten oxide and/or molybdenum oxide as active components and which are applied to a support of silicic acid which has an internal surface area (according to BET) of 50 to 200 m /g and a water uptake capacity of 60 to 120 ml/100 g.

公开(公告)号：DE19535416A1

公开(公告)日：1997-03-27

申请号：DE19535416

申请日：1995-09-23

Applicant: BASF AG

Inventor： BAIER MICHAEL DR ,  RIEKER CHRISTOPHER WILLIAM DR ,  HOFSTADT OTTO ,  BUECHELE WOLFGANG DR ,  POEPEL WOLFGANG JUERGEN DR ,  PETERSEN HERMANN DR ,  NETH NORBERT DR

IPC: B01J23/78 ,  B01J23/80 ,  B01J23/84 ,  B01J23/85 ,  B01J37/00 ,  B01J37/08 ,  B01J37/32 ,  C07C5/333 ,  C07C15/46 ,  B01J23/83 ,  B01J23/888

Abstract: The invention concerns a method of producing catalysts, containing iron and potassium and optionally other elements, suitable for the selective dehydrogenation of hydrocarbons to give the corresponding olefinically unsaturated hydrocarbons. In a first step, a finely particulate dry or aqueous mixture of an iron compound with a potassium compound and optionally also compounds of other elements is calcined in such a way that 5 to 50 mu m diameter conglomerates, made up of smaller particles, are produced. In a second step, preferably following shaping, the mixture is calcined at 300 to 1000 DEG C, the maximum calcining temperature in the second step preferably being at least 30 DEG C lower than that in the first step. The invention also concerns the use of the catalysts produced in this way, particularly in the dehydrogenation of ethylbenzene to styrene.

公开(公告)号：DE3702711A1

公开(公告)日：1988-08-11

申请号：DE3702711

申请日：1987-01-30

Applicant: BASF AG

Inventor： MOLL KURT ,  NETH NORBERT DR

IPC: B28B3/20 ,  B28B3/26 ,  B29C47/12

公开(公告)号：DE19738085C1

公开(公告)日：1998-12-03

申请号：DE19738085

申请日：1997-09-01

Applicant: BASF AG

Inventor： HORN HANS CHRISTOPH DR ,  KUMBERGER OTTO DR ,  MILLIES MARCO DR ,  NETH NORBERT DR ,  POEPEL WOLFGANG JUERGEN DR ,  RIEKER CHRISTOPHER WILLIAM DR ,  SPRAGUE MICHAEL JOLYON DR ,  STROEZEL MANFRED

IPC: B01J19/18 ,  B01F27/91 ,  B01J14/00 ,  B01J19/00 ,  C01G1/00 ,  B01F5/00

Abstract: In the production of solids by precipitation in a mixer, giving a mixture of solid and liquid, the materials used are supplied to a mixer with a rotationally symmetric mixing chamber with rotor, which consists of a peripheral wall and 2 end walls, and (a) each material is supplied through at least one inlet port in the peripheral wall and (b) the mixture containing solid is discharged through outlet port(s) in the peripheral wall.

公开(公告)号：DE19505347A1

公开(公告)日：1995-09-07

申请号：DE19505347

申请日：1995-02-17

Applicant: BASF AG

Inventor： NETH NORBERT DR ,  ROOS HANS DR ,  MIESEN ERNEST DR

IPC: B01J37/00 ,  B01J37/04 ,  B01J37/08

Abstract: Catalyst tablets are made by adding 1-10 wt.% metal powder or metal alloy powder to the pyrogenic catalytic material. The powder has a grain size of 20-500 mu m and the tablets are formed by compaction at 0-180 deg.C.

公开(公告)号：AT69561T

公开(公告)日：1991-12-15

申请号：AT89112041

申请日：1989-07-01

Applicant: BASF AG

Inventor： HOELDERICH WOLFGANG DR ,  DREWS RONALD DR ,  SCHEIDSTEGER OLAF DR ,  NETH NORBERT DR ,  HESS KLAUS DR

IPC: B01D53/86 ,  B01J23/92 ,  B01J38/60 ,  B01J38/64 ,  B01D53/36