中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

48 records (took 0.021 seconds)

    Supported catalyst containing pseudo-boehmite and gamma-Al2O3, production of same and its use for producing 1,2-dichloroethane
    14.
    发明专利
    Supported catalyst containing pseudo-boehmite and gamma-Al2O3, production of same and its use for producing 1,2-dichloroethane 未知

    公开(公告)号：AU3597399A

    公开(公告)日：1999-10-18

    申请号：AU3597399

    申请日：1999-03-19

    Applicant: BASF AG

    Inventor： HEBGEN WERNER ,  RIEKER CHRISTOPHER WILLIAM ,  MEISSNER RUPRECHT

    IPC: B01J23/78 ,  B01J23/83 ,  B01J27/122 ,  B01J37/00 ,  C07B61/00 ,  C07C17/156 ,  C07C19/045

    Abstract: A process for preparing 1,2-dichloroethane by reacting about 2 mols of ethylene, about 4 mols of hydrogen chloride and about 1 mol of oxygen in the presence of a fixed bed of supported catalyst based on copper(II) chloride in only one reaction zone at a pressure of from 2 to 10 bar and at from 220 to 280° C., separating off 1,2-dichloroethane and water from the reaction mixture emerging from the reaction zone and passing most of the exhaust gas back into the reaction zone, where, prior to entry into the reaction zone, the exhaust gas is mixed with ethylene, hydrogen chloride and oxygen, and the oxygen content of the mixture does not exceed 7% by volume, and where the ethylene content of the gas mixture entering into the reaction zone is regulated so that the exhaust gas comprises less than 20% by volume of ethylene, where the supported catalyst used is obtained by tableting a mixture of pseudoboehmite and gamma-Al2O3 in a weight ratio from 4:1 to 1:4, if desired with addition of tableting auxiliaries, loading this support with the active components by saturating with a CuCl2/KCl solution so that the copper content is from 1 to 15% by weight and the potassium content is from 0.1 to 8% by weight, based in each case on the total weight of the catalyst, and then drying the catalyst at from 60 to 400° C.

    PROCESS FOR THE PREPARATION OF A CATALYST FOR THE OXIDATION OF SULFUR DIOXIDE TO SULFUR TRIOXIDE
    15.
    发明专利
    PROCESS FOR THE PREPARATION OF A CATALYST FOR THE OXIDATION OF SULFUR DIOXIDE TO SULFUR TRIOXIDE 未知

    公开(公告)号：DE3469850D1

    公开(公告)日：1988-04-21

    申请号：DE3469850

    申请日：1984-06-25

    Applicant: BASF AG

    Inventor： MEISSNER RUPRECHT ,  NETH NORBERT DR

    IPC: B01J23/22 ,  B01J27/055 ,  C01B17/79

    Abstract: Catalysts for the oxidation of sulfur dioxide to sulfur trioxide, consisting of a silica-based carrier and, applied on this, an active substance containing vanadium and alkali metal compounds, are prepared by dissolving vanadium pentoxide in an alkali solution, acidifying the solution with sulfuric acid, mixing the acidified solution with the carrier, molding the mixture and drying and calcining the molding. To obtain mechanically stable catalysts, a dissolved alkali metal silicate and/or silica sol are added to the alkaline solution before acidification, the latter process is carried out at below 35 DEG C. and the solution is then immediately incorporated into the carrier. The resulting moist crumbly material contains from 2 to 6% by weight of V2O5, from 35 to 45% by weight of H2O and from 15 to 50% by weight of SiO2. From 5 to 25% by weight of the total silica content originates from the dissolved alkali metal silicate and/or silica sol.

    16.
    发明专利
    未知

    公开(公告)号：DE3322940A1

    公开(公告)日：1985-01-03

    申请号：DE3322940

    申请日：1983-06-25

    Applicant: BASF AG

    Inventor： MEISSNER RUPRECHT ,  NETH NORBERT DR

    IPC: B01J23/22 ,  B01J27/055 ,  C01B17/79

    Abstract: Catalysts for the oxidation of sulfur dioxide to sulfur trioxide, consisting of a silica-based carrier and, applied on this, an active substance containing vanadium and alkali metal compounds, are prepared by dissolving vanadium pentoxide in an alkali solution, acidifying the solution with sulfuric acid, mixing the acidified solution with the carrier, molding the mixture and drying and calcining the molding. To obtain mechanically stable catalysts, a dissolved alkali metal silicate and/or silica sol are added to the alkaline solution before acidification, the latter process is carried out at below 35 DEG C. and the solution is then immediately incorporated into the carrier. The resulting moist crumbly material contains from 2 to 6% by weight of V2O5, from 35 to 45% by weight of H2O and from 15 to 50% by weight of SiO2. From 5 to 25% by weight of the total silica content originates from the dissolved alkali metal silicate and/or silica sol.

    17.
    发明专利
    未知

    公开(公告)号：DK306084A

    公开(公告)日：1984-12-26

    申请号：DK306084

    申请日：1984-06-22

    Applicant: BASF AG

    Inventor： MEISSNER RUPRECHT ,  NETH NORBERT

    IPC: B01J23/22 ,  B01J27/055 ,  C01B17/79 ,  B01J ,  C01B

    Abstract: Catalysts for the oxidation of sulfur dioxide to sulfur trioxide, consisting of a silica-based carrier and, applied on this, an active substance containing vanadium and alkali metal compounds, are prepared by dissolving vanadium pentoxide in an alkali solution, acidifying the solution with sulfuric acid, mixing the acidified solution with the carrier, molding the mixture and drying and calcining the molding. To obtain mechanically stable catalysts, a dissolved alkali metal silicate and/or silica sol are added to the alkaline solution before acidification, the latter process is carried out at below 35 DEG C. and the solution is then immediately incorporated into the carrier. The resulting moist crumbly material contains from 2 to 6% by weight of V2O5, from 35 to 45% by weight of H2O and from 15 to 50% by weight of SiO2. From 5 to 25% by weight of the total silica content originates from the dissolved alkali metal silicate and/or silica sol.

    18.
    发明专利
    未知

    公开(公告)号：FI842546A0

    公开(公告)日：1984-06-25

    申请号：FI842546

    申请日：1984-06-25

    Applicant: BASF AG

    Inventor： MEISSNER RUPRECHT ,  NETH NORBERT

    IPC: B01J23/22 ,  B01J27/055 ,  C01B17/79 ,  B01J

    Abstract: Catalysts for the oxidation of sulfur dioxide to sulfur trioxide, consisting of a silica-based carrier and, applied on this, an active substance containing vanadium and alkali metal compounds, are prepared by dissolving vanadium pentoxide in an alkali solution, acidifying the solution with sulfuric acid, mixing the acidified solution with the carrier, molding the mixture and drying and calcining the molding. To obtain mechanically stable catalysts, a dissolved alkali metal silicate and/or silica sol are added to the alkaline solution before acidification, the latter process is carried out at below 35 DEG C. and the solution is then immediately incorporated into the carrier. The resulting moist crumbly material contains from 2 to 6% by weight of V2O5, from 35 to 45% by weight of H2O and from 15 to 50% by weight of SiO2. From 5 to 25% by weight of the total silica content originates from the dissolved alkali metal silicate and/or silica sol.

    Catalyst composition for oxychlorination
    19.
    发明专利
    Catalyst composition for oxychlorination 未知

    公开(公告)号：AU2003206831A8

    公开(公告)日：2003-09-02

    申请号：AU2003206831

    申请日：2003-02-04

    Applicant: BASF AG

    Inventor： KUHRS CHRISTIAN ,  MEISSNER RUPRECHT

    IPC: B01J21/04 ,  B01J23/89 ,  B01J27/122 ,  B01J27/138 ,  B01J35/02 ,  B01J35/10 ,  B01J37/02 ,  C07B61/00 ,  C07C17/156 ,  C07C19/045 ,  B01J27/128 ,  B01J27/051

    Abstract: A supported catalyst composition for the oxychlorination of ethylene comprises 3-12 wt.% copper as copper salt and 0.001-0.1 (0.005-0.05) wt.% of ruthenium, rhodium, palladium, osmium, iridium and/or platinum and/or 0.0001-0.1 (0.001-0.05) wt.% gold as the corresponding metal salt of tetrachloroauric acid. A catalyst composition (I) for the oxychlorination of ethylene comprises a mixture of metal salts on a support and consists of (wt. % with respect to total weight of the catalyst including support): (A) copper as copper salt (3-12); (B) an alkaline earth metal as a salt (0-3); (C) an alkali metal as a salt (0-3); and (D) ruthenium, rhodium, palladium, osmium, iridium and/or platinum (0.005-0.05) and/or gold as the corresponding metal salt of tetrachloroauric acid (0.001-0.05). An independent claim is also included for a process for the production of 1,2-dichloroethane by oxychlorination of ethylene using the catalyst composition (I).

    20.
    发明专利
    未知

    公开(公告)号：AT232897T

    公开(公告)日：2003-03-15

    申请号：AT98916941

    申请日：1998-03-13

    Applicant: BASF AG

    Inventor： FLICK KLEMENS ,  MEISSNER RUPRECHT ,  ARTRIP DAVID J ,  KUNZ FABIAN ,  HEFNER WERNER ,  FESER RAINER

    IPC: C07C7/163 ,  C07B61/00 ,  C07C7/00 ,  C07C11/02 ,  C10G45/40 ,  C10G67/12 ,  C10G67/14 ,  C10G70/00

    Abstract: Alkines, dienes, and/or singly unsaturated hydrocarbons; compounds containing sulphur, arsenic and/or antimony; oxygen, hydrogen and/or carbon monoxide are removed from material flows in a total of at most three process steps. In a first process step, after hydrogen has been added to the feed material flow at a hydrogenation catalyst which is largely resistant to compounds containing sulphur, arsenic and/or antimony, alkines, dienes and/or singly unsaturated hydrocarbons are removed by hydrogenation, oxygen which may optionally be present also being at least partially removed by hydrogenation. In a second process step, compounds containing sulphur, arsenic and/or antimony and/or residual oxygen from the first process step are removed by absorption on a contact mass, and/or residual oxygen, carbon monoxide and/or residual hydrogen are at least partially converted catalytically into water and carbon dioxide. Optionally, in a third process step, residual carbon monoxide and/or residual hydrogen from the preceding process steps is/are converted on a contact mass into carbon dioxide and/or water.

Patent Agency Ranking