中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

39 records (took 0.044 seconds)

    Improvements in the oxo process
    5.
    发明专利
    Improvements in the oxo process 未知

    公开(公告)号：GB1079209A

    公开(公告)日：1967-08-16

    申请号：GB4933764

    申请日：1964-12-04

    Applicant: BASF AG

    Inventor： LANDGRAF ALFRED ,  NIENBURG HANS ,  LOESCH NORBERT ,  APPL MAX ,  FRANCKE DIETHARD

    IPC: B01J10/00 ,  C07C45/50

    Abstract: In a process for the production of aldehydes and alcohols by reaction of olefins in a liquid reaction medium with carbon monoxide and hydrogen in the presence of a known cobalt carbonyl oxo catalyst or a known precursor for in situ preparation thereof, the catalyst being soluble in the reaction medium, at elevated temperature and at superatmospheric pressure in a reactor, wherein back-mixing of reactants and products takes place by circulation of the liquid reaction medium within the confines of the reactor, the circulation is substantially induced by introducing the liquid reactants into the reactor at a linear velocity of at least 2 m./sec., whereby momentum is transferred from the reactants to the liquid reaction medium. An example describes the production of nonyl aldehyde from an octene mixture.

    Production of phthalic anhydride by catalytic oxidation and a catalyst therefor
    7.
    发明专利
    Production of phthalic anhydride by catalytic oxidation and a catalyst therefor 未知

    公开(公告)号：GB941293A

    公开(公告)日：1963-11-06

    申请号：GB1569062

    申请日：1962-04-25

    Applicant: BASF AG

    Inventor： NONNENMACHER HELMUT ,  ANDRUSSOW KONSTANTIN ,  APPL MAX ,  FEINAUER ANTON ,  HAUG JUERGEN ,  HELMS ALFRED ,  WIEBUSCH KLAUS

    IPC: B01J23/22 ,  B01J27/198 ,  C07C51/265 ,  C07C51/31

    Abstract: A catalyst including V2O5, Na2S2O7\t and K2S2O7 on a carrier having special physical properties e.g. SiO2 is used as a fluidised bed in the oxidation of naphthalene or o-xylene to phthalic anhydride. Examples describe the formation also of maleic anhydride and naphthaquinone as by-products. The reaction is carried out at 250-420 DEG C.ALSO:In a process for the production of phthalic anhydride from o-xylene or from naphthalene by oxidation with gases containing oxygen in molecular form, at a temperature of 250 DEG C.-420 DEG C. by the use of V2O5-alkali pyrosulphate catalysts on carrier material in a fluidized bed there is used a catalyst which comprises V2 O5, Na2 S2 O7 and K2 S2 O7, the melting point of the mixture being lower than that of K2 S2 O7, and a highly porous carrier material, especially silica gel, aluminium phosphate, synthetic or natural silicates and active carbon, having an inner surface of 200-400 sq. metres/gm. and a grain size of 10-3000 microns, the active substance being contained in the pores of the carrier in fused form under the reaction conditions. Optional catalyst constituents include H2 MoO4, P2 O5 and H2 Wo4. Examples are given.

Patent Agency Ranking