中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

232 records (took 0.023 seconds)

    Method for producing polyether polyols in the presence of a multi-metal cyanide complex catalyst
    42.
    发明专利
    Method for producing polyether polyols in the presence of a multi-metal cyanide complex catalyst 未知

    公开(公告)号：AU5466001A

    公开(公告)日：2001-09-03

    申请号：AU5466001

    申请日：2001-02-22

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  HARRE KATHRIN ,  ZEHNER PETER ,  MULLER JORN ,  STUTZER DIETER ,  GROSCH GEORG HEINRICH ,  WINKLER JURGEN ,  BAUER STEPHAN

    IPC: B01J27/26 ,  C08G65/26 ,  C08G65/28

    Abstract: Production of polyether polyols comprises use of a multi-metal cyanide complex catalyst in a tall cylindrical reactor having a downward facing spray nozzle in the upper reactor portion, through which the educts and reaction mixture are fed and an outlet, preferably in the lower portion of the reactor to recirculate the reaction mixture via an external circuit and equalizing reservoir. A process for the production of polyether polyols (I) by reaction of diols or polyols with ethylene oxide, propylene oxide and/or butylene oxide in the presence of a multi-metal cyanide complex catalyst (II) comprises carrying out the reaction in a tall cylindrical reactor having a downward facing spray nozzle in the upper reactor portion, through which the educts and reaction mixture are fed, and an outlet, preferably in the lower portion of the reactor, through which the reaction mixture is fed by means of a pump through an external circuit via an equalizing reservoir to the spray nozzle. The external circuit comprises a concentric pipe stretching the entire length of the reactor excluding the reactor ends and contains a heat exchanger integrated within the annulus.

    Production of aldehyde and or alcohol or amine from olefin involves catalytic hydroformylation in a vertical jet-loop reactor with an internal tube and deflector plate to optimize gas-liquid mixing
    47.
    发明专利
    Production of aldehyde and or alcohol or amine from olefin involves catalytic hydroformylation in a vertical jet-loop reactor with an internal tube and deflector plate to optimize gas-liquid mixing 未知

    公开(公告)号：DE19836807A1

    公开(公告)日：2000-02-17

    申请号：DE19836807

    申请日：1998-08-14

    Applicant: BASF AG

    Inventor： ZEHNER PETER ,  ULONSKA ARMIN ,  PACIELLO ROCCO

    IPC: B01J3/00 ,  B01J3/02 ,  B01J10/00 ,  B01J19/00 ,  B01J19/24 ,  B01J19/26 ,  C07B61/00 ,  C07C45/50 ,  C07C47/02 ,  C07C209/60 ,  C07C211/00 ,  C07C27/20 ,  C07B41/06

    Abstract: Hydroformylation of olefins is carried out in a vertical tubular reactor with a circulation loop, a nozzle at the top, an internal guide tube and a baffle plate below the tube, so that a stream of liquid with gas bubbles is forced down the tube, deflected into the upward liquid stream in the space between tube and reactor wall and sucked back into the tube. A process for the production of aldehydes and/or alcohols or amines by the liquid-phase reaction of olefins with carbon monoxide and hydrogen (this gas mixture being partly in the form of bubbles and partly dissolved in the reaction liquid) at elevated temperature and 1-100 bar in the presence or absence of a prim. or sec. amine and in presence of homogeneously dissolved cobalt-, rhodium-, palladium- or ruthenium-carbonyl complexes with phosphorus-, arsenic-, antimony- or nitrogen-containing ligands. The reaction is performed in a vertical tubular reactor comprising a reactor body and at least one circulating loop, by means of which part of the reaction liquid is continuously fed into a nozzle at the top of the reactor and thence into an internal guide tube with parallel walls, open at the top and bottom and with a baffle plate mounted under the lower end. This produces a downward stream of liquid with dispersed gas bubbles, which is deflected by the baffle plate into a stream flowing upwards in the space between the tube and the reactor wall and then sucked into the top of the guide tube by the jet from the nozzle.

    50.
    发明专利
    未知

    公开(公告)号：BRPI0507662B1

    公开(公告)日：2014-12-09

    申请号：BRPI0507662

    申请日：2005-02-08

    Applicant: BASF AG

    Inventor： DEMETER JUERGEN ,  DEININGER JUERGEN ,  HAHN THILO ,  KORY GAD ,  SOETJE OLIVER ,  ZEHNER PETER

    IPC: C08G69/16 ,  C08G69/04 ,  C08G69/28

    Abstract: A continuous process for producing polyamides, their oligomers or mixtures thereof, if appropriate with further reaction products, comprises reaction of aminonitriles or dinitriles and diamines or mixtures thereof, if appropriate together with further polyamide-forming monomers and/or oligomers, with an aqueous medium composed of aqueous monomer and oligomer extracts obtained from polyamide production by extraction of the polymer with water in a reactor which has a vertical longitudinal axis and through which there is a flow substantially in the longitudinal direction wherein water and/or the aqueous medium are introduced into the reactor at two or more different locations along the vertical longitudinal axis, wherein the aqueous medium is introduced at one or more locations.

Patent Agency Ranking