公开(公告)号：ES2118981T3

公开(公告)日：1998-10-01

申请号：ES94100078

申请日：1994-01-05

Applicant: DEGUSSA

Inventor： BANKMANN MARTIN DR ,  BRAND REINHOLD DR ,  FREUND ANDREAS DR ,  TACKE THOMAS DR

IPC: B01J23/40 ,  B01J37/02 ,  C07C1/207 ,  C07C1/22 ,  C07C17/00 ,  C07C29/141 ,  C07C33/20 ,  C07C33/46 ,  C07C41/01 ,  C07C43/164 ,  C07C43/17 ,  C07C51/347 ,  C07C51/367 ,  C07C51/487

Abstract: The invention relates to a process for the selective catalytic hydrogenation of the carbonyl group of aromatic aldehydes of the formula in which X can be a carboxyl group, a methyl group or halogen, to give the corresponding alcohols and methyl compounds. The catalytic hydrogenation is carried out with the addition of a solvent, if appropriate in the presence of organic acids, on a shaped supported catalyst containing a metal from the platinum group on a titanium oxide support in the presence of hydrogen at partial pressure of hydrogen of 5 to 50 bar and temperatures of from 100 to 300@C.

公开(公告)号：DE59105073D1

公开(公告)日：1995-05-11

申请号：DE59105073

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：DK0452619T3

公开(公告)日：1995-05-01

申请号：DK91101249

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  SCHWARZ RUDOLF DR ,  BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  OHMER JOHANNES DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：AT120667T

公开(公告)日：1995-04-15

申请号：AT91101249

申请日：1991-01-31

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：DE4138982A1

公开(公告)日：1993-06-03

申请号：DE4138982

申请日：1991-11-27

Applicant: DEGUSSA

Inventor： HAAS THOMAS DR ,  ARNTZ DIETRICH DR ,  BRAND REINHOLD DR

IPC: B01J27/16 ,  B01J21/06 ,  B01J27/14 ,  C07B61/00 ,  C07C45/64 ,  C07C47/19

Abstract: A process for the production of 3-hydroxyalkanals, more particularly 3-hydroxypropionaldehyde, by hydration of the basic 2-alkenals, more particularly acrolein, in the presence of a solid catalyst containing acid functional groups. The catalysts are based on an inorganic support containing basic activity centers (which are at least partly occupied by a polybasic acid, of which the first pKs value is between 0 and 3, in a form in which it cannot be removed by water) enables the hydration to be carried out with high selectivity. At the same time, the disadvantages of known organic fixed-bed catalysts are avoided. Preferred catalyst are based on pyrogenic titanium dioxide with phosphoric acid fixed thereon.

公开(公告)号：DE4012479A1

公开(公告)日：1991-10-24

申请号：DE4012479

申请日：1990-04-19

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  FOERSTER MARTIN DR ,  HARTMANN WERNER DR ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  OHMER JOHANNES DR ,  SCHWARZ RUDOLF DR

IPC: B01J21/06 ,  B01J35/10 ,  B01J37/00 ,  B28B3/20 ,  C04B35/46

Abstract: Pressed titanium dioxide is produced by intensively mixing pyrogenically prepared titanium dioxide in the presence of deionised water with a humectant and/or a base and/or, if appropriate, a binder and/or, if appropriate, a forming aid and/or, if appropriate, a pore former, extruding the resulting mass at pressures of between 5 and 100 bar to give mouldings, drying the mouldings at temperatures between 50 and 120 DEG C and then calcining them for 1 to 5 hours in ambient air at temperatures from 400 to 700 DEG C.

公开(公告)号：ES2151015T3

公开(公告)日：2000-12-16

申请号：ES95117393

申请日：1995-11-04

Applicant: DEGUSSA

Inventor： LANSINK-ROTGERINK HANS DR ,  TACKE THOMAS DR ,  BRAND REINHOLD DR ,  PANSTER PETER DR

IPC: B01J23/60 ,  B01J23/62 ,  C07B61/00 ,  C07C5/32 ,  C07C5/333 ,  C07C11/02

Abstract: A catalyst for dehydrogenation of 6-15C paraffins contains (a) an inorganic support, (b) 0.01-5% of a Pt gp. metal, (c) 0.01-5% of Sn, Ge and/or Pb as promoter, and (d) 0.01-20% of an alkaline earth metal as modifier.

公开(公告)号：GR3002139T3

公开(公告)日：1992-12-30

申请号：GR910400814

申请日：1991-06-13

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND DR ,  KLEINE-MOELLHOFF PETER ,  KOBERSTEIN EDGAR DR

IPC: B01J35/04 ,  B01D53/34 ,  B01J33/00 ,  B01J35/02 ,  F01N3/10

Abstract: A device for the containment of ceramic catalyst monoliths particularly of four cornered cross sectional area as well as for the combination of a plurality thereof into a package. The device includes elastic gaskets arranged on one of the ends of the monoliths and partitions for the form fitting containment of the elements into a cassette.

公开(公告)号：AT72521T

公开(公告)日：1992-02-15

申请号：AT88119000

申请日：1988-11-15

Applicant: DEGUSSA

Inventor： BRAND REINHOLD DR ,  ENGLER BERND H DR ,  HONNEN WOLFGANG DR ,  KLEINE-MOELLHOFF PETER ,  KOBERSTEIN EDGAR DR

IPC: B01D53/94 ,  B01D53/86 ,  B01J21/06 ,  B01J23/30 ,  B01J23/85 ,  B01J23/88 ,  C01G23/07 ,  B01D53/36

公开(公告)号：DE3841990A1

公开(公告)日：1990-06-21

申请号：DE3841990

申请日：1988-12-14

Applicant: DEGUSSA

Inventor： BAACKE MICHAEL DR ,  BRAND REINHOLD DR ,  ENGLER BERND H DR ,  KISS AKOS DR ,  KLEINE-MOELLHOFF P DIPL ING ,  KLEINSCHMIT PETER DR ,  KOBERSTEIN EDGAR DR ,  SIRAY MUSTAFA DR

IPC: B01D53/86 ,  B01D53/56 ,  B01D53/94 ,  B01J29/18 ,  B01J29/20 ,  B01J29/24 ,  B01J29/26

Abstract: A zeolite catalyst and a method for reduction of nitrogen oxides present in waste gas streams is described. The method includes mixing the waste gas containing nitrogen oxides with ammonia. At an elevated temperature, this mixture is passed over a zeolite catalyst. Preferably, the zeolite catalyst is in a monolithic or honeycomb form. The zeolite catalyst includes one or more of the following subgroup metals: copper, iron, molybdeum and cerium. The zeolite catalysts made in accordance with this invention show better conversion of nitrogen oxides and longer life than known catalysts.