中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

38 records (took 0.023 seconds)

    Production of aniline
    21.
    发明专利
    Production of aniline 未知

    公开(公告)号：GB913444A

    公开(公告)日：1962-12-19

    申请号：GB146761

    申请日：1961-01-13

    Applicant: BASF AG

    Inventor： SPERBER HEINRICH ,  POEHLER GUENTER ,  PISTOR HANS JOACHIM ,  WEGERICH ANTON

    IPC: C07C209/36

    Abstract: In a process for the production of aniline, or an amine of an alkyl benzene, by the hydrogenation of nitrobenzene, or an alkylated nitrobenzene e.g. nitrotoluene or nitroxylene, using a metal hydrogenation catalyst in a fluidised layer, preferably provided with cooling means, the nitrobenzene is introduced into the layer at least partly in liquid phase at a plurality of points at least some of which are at different heights. The hydrogen and nitrobenzene are introduced into the reaction zone in a molar ratio of at least 3 : 1. The reaction is preferably carried out at a pressure of 4-25 atmospheres at temperatures between 200 and 400 DEG C. The hydrogen may be introduced with the nitrobenzene e.g. by using a two-component nozzle, or at the bottom of the reaction vessel. The points of introduction of the nitrobenzene are preferably distributed over the lower three-quarters of the fluidised catalyst layer. When a reactor of large crosssectional area is used, several inlets may be provided at the same level. In examples, the hydrogenation is carried out at 275 DEG C. and at 300 DEG C. at 10 atm. using a Cu on alumina catalyst and at 280-290 DEG C. at 5 atm. using Cu with traces of Cr, Ba, and Zn on silicic acid as catalyst. An Ni/Mo catalyst may also be used.

    Production of catalysts or catalyst carriers in the form of hollow beads
    25.
    发明专利
    Production of catalysts or catalyst carriers in the form of hollow beads 未知

    公开(公告)号：GB1069284A

    公开(公告)日：1967-05-17

    申请号：GB2380864

    申请日：1964-06-09

    Applicant: BASF AG

    Inventor： BAER KARL ,  SPERBER HEINRICH ,  GOEHRE OTTO ,  LEIBNER GERHARD

    IPC: B01J21/04 ,  B01J21/08 ,  B01J23/72 ,  B01J23/882 ,  B01J35/02 ,  B01J35/04 ,  B01J35/08 ,  B01J37/00

    Abstract: In Examples 5 and 8, nitrobenzene is hydrogenated to aniline in presence of hollow silica beads impregnated with copper, at temperatures of 280 DEG -290 DEG C.ALSO:Catalysts or catalyst carriers in the form of hollow beads are prepared by spraying a hydrogel containing at least 30% by weight of water and/or a suspension and/or a solution of metal compounds at a pressure of 10 to 100 atmospheres into a tower-shaped vessel, and cocurrently introducing a gas at 300 DEG to 700 DEG C. in amounts of 4 to 18 cubic meters per kgm. of initial material. Hydrogels of silicic acid, alumina, silicates and titania are mentioned, Al, Mg, Zr or Zn salts may be added in preparing a silicic acid hydrogel. The metal compounds may be compounds of Cu, Ag, Zn, Mg, Al, Sn, Pb, V, Cr, Mo, W, Mn, Fe, Ni, Co, Pt or Pd. The hollow beads may be treated with halogen or a phosphoric acid. Examples relate to (1), (5) silica gel; (2), (3) alumina gel; (4) aluminium phosphate; (6) alumina + Co + Mo; (7) Mo + P + V; (8) silica gel + Cu.ALSO:Catalysts or catalyst carriers in the form of hollow beads are prepared by spraying a hydrogel containing at least 30% by weight of water and/or a suspension and/or a solution of metal compounds at a pressure of 10 to 100 atmospheres into a tower-shaped vessel, and cocurrently introducing a gas at 300 DEG to 700 DEG C. in amounts of 4 to 18 cubic meters per kgm of initial material. Hydrogels of silicic acid, alumina, silicates and titania are mentioned. Al, Mg, Zr or Zn salts may be added in preparing a silicic acid hydrogel. The metal compounds may be compounds of Cu, Ag, Zn, Mg, Al, Sn, Pb, V, Cr, Mo, W, Mn, Fe, Ni, Co, Pt or Pd. The hollow beads may be treated with halogen or a phosphoric acid. Examples relate to (1), (5) silica gel (2), (3) alumina gel; (4) aluminium phosphate; (6) alumina +Co+Mo; (7) Mo+P+V; (8) silica gel +Cu. A reactor for hydrogenation of nitrobenzene has diameter to height ratio 1:4 and has twenty two-component nozzles arranged at three levels above the grate at the bottom of the reactor. The upper portion of the vessel is widened to 1 1/2 times and includes a cyclone; reaction gases leaving by the cyclone are recycled via a heat exchanger, condenser, gas-liquid separator, preheater and pump. Cooling tubes are arranged in the catalyst layer at a distance from the wall of the reactor.

    Insecticides
    26.
    发明专利
    Insecticides 未知

    公开(公告)号：GB918065A

    公开(公告)日：1963-02-13

    申请号：GB3816661

    申请日：1961-10-25

    Applicant: BASF AG

    Inventor： ADOLPHI HEINRICH ,  STUMMEYER HERBERT ,  BECKE FRIEDRICH ,  SPERBER HEINRICH

    IPC: A01N47/22

    Abstract: An insecticidal composition comprises the a -naphthyl ester of N-methyl carbamic acid and 2,3,3,3,21,31,31,31 - octachloro - dipropyl ether, preferably in the ratio of 0.1-10 parts of ether to 1 part of ester. Specified liquid diluents are ketones e.g. acetone and cyclohexanone; low boiling alcohols e.g. methanol; N-disubstituted acid amides e.g. dimethyl formamide; lactones e.g. butyrolactone and lactams e.g. N-methyl pyrrolidone. Specified solid diluents are talc kieselguhr or silica gel. The composition may be in the form of an aerosol or dust.

Patent Agency Ranking