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公开(公告)号:JP2000086335A
公开(公告)日:2000-03-28
申请号:JP18081099
申请日:1999-06-25
Applicant: DEGUSSA
Inventor: TACKE THOMAS DR , SCHINKE PETER , ROTGERINK HANS LANSINK DR , KRAUSE HELMFRIED
IPC: C04B35/16 , B01J19/30 , B01J20/10 , B01J21/08 , B01J35/02 , C04B35/632 , C04B35/64 , C07C67/055 , C07C69/15
Abstract: PROBLEM TO BE SOLVED: To minimize the pressure drop, give the small bulk density and a relatively large outer surface area and permit improved mass transfer and heat transfer by forming stays or spokes extending from the inner wall of the hollow cylinder toward the center for strengthening the inside or forming a plurality of passageways. SOLUTION: The molded body of a wheel shape has an outer diameter d1 of 1-25 mm, the ratio of height to the outer diameter d1 of 0.2-5, the wall thickness [(d1-d2)×0.5] of 0.05-0.5×d1, the thickness of the stay or spoke d3 of 0.05-0.3×d1 and the number of the stays or spokes or the passageways of at least 3. The molded body is formed by kneading the base of silicon dioxide produced by thermal decomposition, forming the silicon dioxide by means of a single or twine screw extruder and strand-pressing formed silicon dioxide into a hollow cylinder in a wheel shape. Then, the strand-pressed produce is cut in a desired thickness and they are heat-treated at 400-1,200 deg.C for 30 minutes-10 hours. The molded body is allowed to carry a catalytically active component such as Pd/alkali/Au system or the like to give the objective supported catalyst that attains the high space time yield and the high selectivity in the production of vinyl acetate.
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公开(公告)号:JPH1171394A
公开(公告)日:1999-03-16
申请号:JP17487698
申请日:1998-06-22
Applicant: DEGUSSA
Inventor: TANNER HERBERT , DRAUZ KARLHEINZ , STINGL KLAUS DR , SATOR GERHARD DR , BETHGE HORST , MOELLER ROLAND , TACKE THOMAS DR , REHREN CLAUS DR
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound useful as an intermediate or the like for producing a blood pressure regulator by posttreating a crude substance from a production process for a specific N-substituted-L-lysyl-L-proline with liquid or supercritical CO2 . SOLUTION: A crude substance from a production process for a 1-[N2-((S)- ethoxycarbonyl)-3-phenylpropyl)-N6-trifluoroacetyl]-L-lysyl-L-proline (LPE) in which the LPE is enriched and present is precharged into an extraction container C and supercritical CO2 or liquid CO2 prepared by making liquid CO2 flow from a collection container D to a pump P1 , compressing the liquid CO2 to an extraction pressure and heating the compressed liquid CO2 to an extraction temperature with a heat exchanger E1 is fed to the extraction container C to dissolve an extractible substance in the CO2 during the passage thereof through the extraction container C. The CO2 loaded with the dissolved substance is then led to a separator S and the pressure or temperature or both are changed to deposit the extracted substance. Thereby, the LPE which is an intermediate for an inhibitor of angiotensin converting enzymes effectively useful as a blood pressure regulator is obtained in a short time.
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公开(公告)号:JPH1081508A
公开(公告)日:1998-03-31
申请号:JP12823597
申请日:1997-05-19
Applicant: DEGUSSA
Inventor: KRAUSE HELMFRIED DR , ROTGERINK HANS LANSINK DR , TACKE THOMAS DR , PANSTER PETER DR , BURMEISTER ROLAND DR
IPC: B01J21/08 , B01J23/52 , B01J23/66 , B01J35/10 , B01J37/00 , C01B33/12 , C04B35/14 , C04B35/634 , C04B35/636 , C07B61/00 , C07C29/04 , C07C31/08 , C07C31/10 , C07C67/035 , C07C67/04 , C07C69/15 , C09C1/30
Abstract: PROBLEM TO BE SOLVED: To obtain compressed powder improved in purity, activity, selectivity, etc., by compressing powder obtained by drying a mixture of a specific silicon dioxide with methyl cellulose, microwax and/or polyethylene glycol and water and carrying out heat treatment of the compressed powder. SOLUTION: A volatile silicon compound is sprayed into a detonating gas frame comprising hydrogen and air to hydrolyze the silicon compound to afford silicon dioxide comprising >99.8wt.% SiO2 content and /g BET surface area, 0.5-1.3mL/g pure volume and 10-250N breakage strength and having
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4.
公开(公告)号:JP2003225570A
公开(公告)日:2003-08-12
申请号:JP2002368207
申请日:2002-12-19
Applicant: DEGUSSA
Inventor: TACKE THOMAS DR , KRAUSE HELMFRIED , LANSINK ROTGERINK HERMANUS G J , CHEN BAOSHU , CARSON JASON
IPC: B01J31/28 , B01J21/08 , B01J23/58 , B01J23/60 , B01J23/66 , B01J35/02 , B01J35/10 , B01J37/02 , C07B61/00 , C07C67/055 , C07C69/15
Abstract: PROBLEM TO BE SOLVED: To produce a supported catalyst having higher catalytic activity than that of a known catalyst in the case of equal selectivity or improved selectivity. SOLUTION: In the case of the supported catalyst containing a mixture comprising palladium and/or its compound and an alkali metal compound, and additionally gold and/or its compound (system Pd/alkali metal/Au) or cadmium and/or its compound (system Pd/alkali metal/Cd) or barium and/or its compound (system Pd/alkali metal/Ba) or palladium, an alkali metal compound and gold and/or cadmium and/or barium, the catalyst on a carrier having a leakage passage is important, and an active component has an intrusion depth above 0.5-1.5 mm calculated from the surface area of a carrying material. COPYRIGHT: (C)2003,JPO
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公开(公告)号:JP2000095571A
公开(公告)日:2000-04-04
申请号:JP26905299
申请日:1999-09-22
Applicant: DEGUSSA
Inventor: KRAUSE HELMFRIED , LANSINK ROTGERINK HERMANUS G J , TACKE THOMAS DR , MANGOLD HELMUT , RIEDEMANN HEIKE , FUCHS MANFRED
IPC: C04B35/622 , B01J21/00 , B01J21/06 , B01J27/16 , B01J35/00 , B01J35/10 , B01J37/00 , C04B35/00 , C04B35/16 , C04B35/18 , C04B35/46 , C04B35/632
Abstract: PROBLEM TO BE SOLVED: To produce a formed material based on an oxide mixture produced by a pyrolysis method, methods for producing and using the same, a phosphoric acid catalyst and a method for using the same. SOLUTION: The oxide mixture produced by the pyrolysis method has an outer diameter of 0.8-25 mm, a BET surface area of 5-400 m2/g, a pore volume of 0.2-1.8 ml/g, a fracture strength of 5-350 N and a bulk density of 250-1,500 g/l and contains at least two kinds selected from the group consisting of SiO2, Al2O3, TiO2 and ZrO2 and the other components in an amount of
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公开(公告)号:JP2000093797A
公开(公告)日:2000-04-04
申请号:JP26905099
申请日:1999-09-22
Applicant: DEGUSSA
Inventor: TACKE THOMAS DR , KRAUSE HELMFRIED , LANSINK ROTGERINK HERMANUS G J , DALY FRANCIS , REISINGER MARTIN , MANGOLD HELMUT
IPC: B01J21/06 , B01J21/08 , B01J23/52 , B01J23/58 , B01J23/60 , B01J23/66 , B01J35/00 , B01J35/10 , B01J37/00 , C07B61/00 , C07C67/05 , C07C67/055 , C07C69/01 , C07C69/15
Abstract: PROBLEM TO BE SOLVED: To provide a supported catalyst with an activity which is the same as or higher than an already known catalyst on account of improved selectivity beyond the known level. SOLUTION: This supported catalyst for producing a vinyl monomer shows the physicochemical data of a carrier: 0.8-25 mm outside dia.; 5-400 m2/g BET surface area; 0.2-1.8 ml/g pore volume, 5-350 N breaking strength. In addition, the carrier is based on a mixed oxide prepared through the thermal decomposition of an arbitrary combination of at least, two kinds selected from the group of SiO2, Al2O3, TiO2 and ZrO2 excepting an SiO2-Al2O3 mixed oxide in which 75 wt.% or more SiO2 are present, 1 wt.% other components and 250-1500 g/L bulk density.
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公开(公告)号:JPH11268017A
公开(公告)日:1999-10-05
申请号:JP32224398
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
Abstract: PROBLEM TO BE SOLVED: To provide a press work product used as a catalyst or a catalyst carrier for manufacturing vinyl acetate monomers. SOLUTION: A press work product is composed of silicon dioxide produced by pyrolysis of 0.5-1.8 ml/g pore volume as a base, and water is added to silicon dioxide prepared by pyrolysis, and uniformized together with methylhydroxyethyl cellulose, wax and polyethylene glycol. A kneading process and a molding process are carried out and also extraction is carried out, and in some cases, an extruded material is cut into the desired length by using a cutting device, dried at 70-150 deg.C and thermally treated at 400-1200 deg.C within a time from 30 minutes to 10 hours.
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公开(公告)号:JPH10316592A
公开(公告)日:1998-12-02
申请号:JP12867898
申请日:1998-05-12
Applicant: DEGUSSA
Inventor: TACKE THOMAS DR , ROEDER STEFAN , BEUL INGE , LAPORTE STEFFEN , PANSTER PETER DR
Abstract: PROBLEM TO BE SOLVED: To provide a method, for continuously carrying out a catalytic reaction of one or more organic compounds contained in starting materials which are formed together with an unfavorable accompanying material. SOLUTION: A desirable organic compound in starting materials is intentionally extracted using a condensed fluid, optionally another reaction component being added, and an extract consisting of the condensed fluid and the compound as a reaction mixture is brought on a catalyst, the organic compound is catalytically reacted using the catalyst to convert the compound into a production mixture consisting of individual products of catalytic reaction, the product mixture is separated from the reaction mixture, and the fluid used above is optionally returned to the extraction process. As shown by low sulfur content and clearly improved acid value, extremely high purity of the extract is achieved.
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公开(公告)号:AT215845T
公开(公告)日:2002-04-15
申请号:AT99112026
申请日:1999-06-22
Applicant: DEGUSSA
Inventor: TACKE THOMAS DR , SCHINKE PETER , ROTGERINK HERMANUS LANSINK DR , KRAUSE HELMFRIED
IPC: C04B35/16 , B01J19/30 , B01J20/10 , B01J21/08 , B01J35/02 , C04B35/632 , C04B35/64 , C07C67/055 , C07C69/15
Abstract: Moldings based on silica having a hollow cylindrical configuration with internal reinforcing stays or spokes leading from an inner wall of a hollow cylinder to the center of the molding or in the form of miniliths having passageway channels therethrough, are produced by homogenizing silica with methyl hydroxyethyl cellulose, wax and/or polyethylene glycol. Water and optionally aqueous alkaline ammonia solution are added, and the mixture is subjected to kneading and forming, extruding, optionally cutting the extrudate to the desired length by means of a cutting device, drying at a temperature from 20 to 150° C., and annealing for a period from 30 minutes to 10 hours at a temperature of 400 to 1200° C. The moldings can be used as catalyst supports for the production of unsaturated esters from olefins, organic acids and oxygen in the gas phase and and can be used in particular for the production of vinyl acetate monomer.
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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
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.
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