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    Method for producing alkyl aromatic compounds
    61.
    发明专利
    Method for producing alkyl aromatic compounds 未知

    公开(公告)号：AU2004230225A1

    公开(公告)日：2004-10-28

    申请号：AU2004230225

    申请日：2004-04-14

    Applicant: BASF AG

    Inventor： ZEHNER PETER ,  STEINBRENNER ULRICH ,  BENFER REGINA ,  UNGER JORG ,  ZIMDAHL SOEREN ,  NARBESHUBER THOMAS

    IPC: C07C2/66 ,  C07C15/107 ,  C07C303/06 ,  C07C303/08 ,  C07C309/31 ,  C07C2/70

    Abstract: Production of alkylaromatic compounds (I), by reacting 3-30C olefins (II) (or alcohols forming (II) under the reaction conditions) with aromatic hydrocarbons (III) in presence of an alkylation catalyst (IV), is carried out in a cascade of at least two reactors each containing (IV), where at least 80 % of (III) is supplied to the first reactor of the cascade and at least 40 % of (II) is supplied after the first reactor. An independent claim is included for the preparation of alkylarylsulfonates (A), by: (1) converting a 4C olefin mixture over a metathesis catalyst to give an olefin mixture containing 2-pentene and/or 2-hexene; (2) catalytically dimerizing the 2-pentene and/or 2-hexene (optionally after isolation) to give a mixture containing 10-12C olefins, optionally separating the 10-12C olefins and separating 5-30 wt. % (based on the 10-12C olefins) of low-boiling components of the 10-12C olefins; (3) reacting the obtained 10-12C olefin mixture with (III) in presence of (IV) to give alkylaromatic compounds (I'), optionally with addition of 0-60 wt. % (based on the 10-12C olefin mixture) of linear olefins before the reaction; (4) sulfonating (I') and neutralizing to give (A), optionally with addition of 0-60 wt. % (based on (I')) of linear alkylbenzenes (provided that no mixing has been carried out in the previous step); and (5) optionally mixing the obtained (A) with optionally with addition of 0-60 wt. % (based on (A)) of linear aralkylsulfonates (provided that no mixing has been carried out either of the previous two steps); The novel feature being that the reaction in the alkylation stage (3) is carried out as for the present procedure for preparing (I).

    METHOD FOR PRODUCING POLYAMIDES
    62.
    发明专利
    METHOD FOR PRODUCING POLYAMIDES 未知

    公开(公告)号：CA2519816A1

    公开(公告)日：2004-10-07

    申请号：CA2519816

    申请日：2004-03-19

    Applicant: BASF AG

    Inventor： DEMETER JURGEN ,  DEININGER JURGEN ,  WINTERLING HELMUT ,  HEEGER MICHAEL ,  ZEHNER PETER ,  GANN MARTIN ,  KORY GAD ,  SOTJE OLIVER ,  POLT AXEL ,  TREULING ULRICH ,  WEINLE WERNER

    IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16 ,  C08G69/28

    Abstract: The invention relates to a method for producing polyamides, their oligomers or mixtures thereof, optionally containing other reaction products, by reacting aminonitriles or dinitriles and diamines or a mixture containing aminonitril e, dinitrile and diamine and optionally additional polyamide-forming monomers and/or oligomers with water in a reactor (1) with a vertical longitudinal axis. According to said method, the reaction product is exfiltrated from the sump in the reactor (1) and accumulated ammonia and optionally other accumulated low-molecular compounds and water are drawn off via the head (2) . The invention is characterised in that the reactor (1) comprises at least tw o chambers (4) arranged in a longitudinal direction one above the other, that the chambers (4) are separated from one another by liquid-tight floors (5), that each chamber (4) is connected to the one (4) immediately below by a respective liquid overflow (6) and a liquid product stream is drawn off via the liquid overflow (6) of the lowest chamber (4), that the gas chamber (7) above the liquid level in each chamber (4) is connected to the respective chamber (4) lying immediately above it via one or several conduits (8), whic h open respectively into a gas diffuser (9) comprising orifices (11) for the discharge of gas below the liquid level. The reactor also comprises at least one respective deflector plate (12) positioned vertically around each gas diffuser (9), the upper end of said plate terminating below the liquid level and the lower end terminating above the liquid-tight floor (5) of the chambe r (4), thus sub-dividing each chamber (4) into one or more compartments suppli ed with gas (13) and one or more compartments without gas (14).

    64.
    发明专利
    未知

    公开(公告)号：AT269285T

    公开(公告)日：2004-07-15

    申请号：AT01927780

    申请日：2001-03-22

    Applicant: BASF AG

    Inventor： SCHULTZ RALF ,  HEIDEMANN THOMAS ,  SCHWAB PETER ,  ZEHNER PETER

    IPC: B01J19/24 ,  C07B61/00 ,  C07C2/08 ,  C07C2/10 ,  C07C2/24 ,  C07C11/02

    Abstract: A process for the production of essentially unsaturated oligomers of 4-6C alkenes from an alkene or alkene containing hydrocarbon stream at a nickel containing heterogeneous catalyst in an adiabatic reactor at 20-300 [deg]C and 1-100 bar comprises working up a first partial outlet stream to the oligomer and recycling a second partial stream together with fresh alkene to the reactor.

    66.
    发明专利
    未知

    公开(公告)号：AT266692T

    公开(公告)日：2004-05-15

    申请号：AT01927689

    申请日：2001-02-22

    Applicant: BASF AG

    Inventor： OSTROWSKI THOMAS ,  HARRE KATHRIN ,  ZEHNER PETER ,  MUELLER JOERN ,  STUETZER DIETER ,  GROSCH GEORG HEINRICH ,  WINKLER JUERGEN ,  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.

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