-
公开(公告)号：BR9904289A
公开(公告)日：2000-10-17
申请号：BR9904289
申请日：1999-09-22
Applicant: DEGUSSA
-
公开(公告)号：BR9804630A
公开(公告)日：2000-04-11
申请号：BR9804630
申请日：1998-11-12
Applicant: DEGUSSA
Inventor： KRAUSE HELMFRIED , ROTGERINK HERMANUS LANSINK DR , FEUER OLIVER , TACKE THOMAS DR , PANSTER PETER DR
IPC: B28B3/20 , B01J21/08 , B01J23/54 , B01J32/00 , B01J35/10 , B01J37/00 , B28B11/16 , C01B33/12 , C01B33/18 , C04B35/14 , C07B61/00 , C07C29/04 , C07C31/08 , C07C67/055 , C07C69/15 , B01J23/44 , C07C69/155
Abstract: A pressed article (I) is based upon pyrogenically produced silicon dioxide having a pore volume of 0.5-1.8 ml/g. Independent claims are included for: (i) the production of (I) by mixing pyrogenically produced silicon dioxide with methylhydroxyethylcellulose, wax and polyethylene glycol and water followed by extrusion, optionally cutting the extrudate to a desired length, drying at 70-150 degrees C and heating at 400-1200 degrees C for up to 10 hours; (ii) a supported catalyst (II) comprising (I) for the production of vinylacetate monomer, that contains palladium (Pd) and/or Pd compounds and alkali compounds; gold (Au) and/or Au compound (Pd/alkali/Au system) or cadmium (Cd) and/or Cd compounds (Pd/alkali/Cd system) or barium (Ba) and/or Ba compounds (Pd/alkali/Ba system) or Pd, alkali compounds and mixture of Au and/or Cd and/or Ba; and (iii) the production of the catalyst support (II) by soaking, spraying, condensing, dipping or precipitating the Pd, Au, Cd and/or Ba compounds onto (I), optionally reducing the metal, washing to remove the resulting chloride content, impregnating with alkali acetate or alkali compound that is converted under reaction conditions at least partially to alkali acetate.
-
公开(公告)号：CZ9902331A3
公开(公告)日：2000-01-12
申请号：CZ233199
申请日：1999-06-25
Applicant: DEGUSSA
Inventor： TACKE THOMAS DR , SCHINKE PETER , LANSINK ROTGERINK HERMANUS DR , KRAUSE HELMFRIED
-
公开(公告)号：DK0694982T3
公开(公告)日：1999-06-23
申请号：DK95110388
申请日：1995-07-04
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , FREUND ANDREAS DR , LANG JUTTA DR , LEHMANN THOMAS DR , OHMER JOHANNES DR , TACKE THOMAS DR , HEINZ GERHARD , SCHWARZ ROBERT
Abstract: A ternary platinum alloy catalyst on a conductive carbon carrier for use in fuel cells is disclosed. For the production of the catalyst, nitrate salts are used as precursors of the alloy components and all alloy components are deposited concurrently on the carbon carrier. This method of procedure yields ageing-stable catalysts with high oxygen mass activity.
-
公开(公告)号：ES2126884T3
公开(公告)日：1999-04-01
申请号：ES95909690
申请日：1995-02-09
Applicant: DEGUSSA
Inventor： TACKE THOMAS DR , WIELAND STEFAN DR , PANSTER PETER DR , BANKMANN MARTIN DR , MAEGERLEIN HENDRIK
IPC: B01J23/42 , B01J3/00 , B01J23/44 , B01J23/755 , C07C51/36 , C07C51/48 , C07C57/03 , C07C57/12 , C07C67/303 , C07C69/26 , C07C69/533 , C11B3/10 , C11C3/12
-
Patent Agency Ranking
公开(公告)号：DE19719431A1
公开(公告)日：1998-11-19
申请号：DE19719431
申请日：1997-05-12
Applicant: DEGUSSA
Inventor： TACKE THOMAS DR , ROEDER STEFAN , BEUL INGE , LAPORTE STEFFEN
IPC: B01J23/44 , C07B35/02 , C07B61/00 , C07C51/36 , C07C67/303 , C11B3/00 , C11C3/12 , C07C53/126 , C07C69/22 , C07C69/24 , C07C69/30 , C07C67/02 , C07C67/08 , C07B41/12
Abstract: Continuous catalytic reaction of organic compound(s) containing undesirable impurities, for use as starting materials, comprises (i) extracting the required organic compound(s) (I) with compressed fluid (II); (ii) optionally adding other reactants and other fluids to the extract of (II) and (I); (iii) passing the reaction mixture over a catalyst to convert (I) to a mixture of individual products; (iv) separating the product mixture from the reaction mixture; and (v) optionally recycling the fluid(s) to extraction.
-
公开(公告)号：AT172326T
公开(公告)日：1998-10-15
申请号：AT95110388
申请日：1995-07-04
Applicant: DEGUSSA
Inventor： BRAND REINHOLD DR , FREUND ANDREAS DR , LANG JUTTA DR , LEHMANN THOMAS DR , OHMER JOHANNES DR , TACKE THOMAS DR , HEINZ GERHARD , SCHWARZ ROBERT
Abstract: A ternary platinum alloy catalyst on a conductive carbon carrier for use in fuel cells is disclosed. For the production of the catalyst, nitrate salts are used as precursors of the alloy components and all alloy components are deposited concurrently on the carbon carrier. This method of procedure yields ageing-stable catalysts with high oxygen mass activity.
-
公开(公告)号：DE59406155D1
公开(公告)日：1998-07-16
申请号：DE59406155
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：IN179940B
公开(公告)日：1997-12-27
申请号：IN1498CA1995
申请日：1995-11-22
Applicant: DEGUSSA
Inventor： ROTGERINK HANS LANSINK DR , TACKE THOMAS DR , BRAND REINHOLD DR , PANSTER PETER DR
-
公开(公告)号：DE59500873D1
公开(公告)日：1997-12-04
申请号：DE59500873
申请日：1995-01-19
Applicant: DEGUSSA
Inventor： BANKMANN MARTIN DR , OHMER JOHANNES DR , TACKE THOMAS DR
-
-
-
-
-
-
-
-
-
Search Results
54
records
(took 0.028 seconds)
