中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

5 records (took 0.018 seconds)

    PROCESS FOR THE PREPARATION OF ALKYLARYL COMPOUNDS
    2.
    发明专利
    PROCESS FOR THE PREPARATION OF ALKYLARYL COMPOUNDS 未知

    公开(公告)号：MY136695A

    公开(公告)日：2008-11-28

    申请号：MYPI20045180

    申请日：2004-12-16

    Applicant: BASF AG

    Inventor： STEINBRENNER ULRICH DR ,  HEIDEMANN THOMAS DR ,  ROEPER MICHAEL PROF DR ,  STEPHAN JUERGEN DR ,  NARBESHUBER THOMAS DR ,  TROPSCH JURGEN DR ,  BOTTKE NILS DR ,  BENFER REGINA DR

    IPC: C07C2/66 ,  C07C303/06 ,  C07C309/31 ,  C11D1/22 ,  C11D11/04

    Abstract: The preparation of alkylaryl compounds takes place by a) reaction of a C 4 /C 5 -olefin mixture over a metathesis catalyst to prepare a C 4-8 -olefin mixture comprising 2-pentene, and optional removal of the C 4-8 -olefin mixture, b) removal of from 5 to 100% of the 2-pentene present in stage a) and subsequent reaction over an isomerization catalyst to give a mixture of 2-pentene and 1-pentene which is returned to stage a), c) dimerization of the C 4-8 -olefin mixture obtained in stage b) following removal in the presence of a dimerization catalyst to give a mixture containing C 8-16 -olefins, removal of these C 8-16 -olefins and optional removal of a partial stream thereof, d) reaction of the c 8-16 -olefin mixtures obtained in stage c) or of the partial stream with an aromatic hydrocarbon in the presence of an alkylation catalyst to form alkyl aromatic compounds where, prior to the reaction, 0 to 60% by weight, based on the c 8-16 -olefin mixtures obtained in stage c), of linear olefins may additionally be added, e) optional sulfonation of the alkyl aromatic compounds obtained in stage d) and neutralization to give alkylarylsulfonates, where, prior to the sulfonation, 0 to 60% by weight, based on the alkyl aromatic compounds obtained in stage d), of linear alkylbenzenes may additionally be added if no admixing has taken place in stage d), f) optional mixing of the alkylarylsulfonates obtained in stage e) with 0 to 60% by weight, based on the alkylarylsulfonates obtained in stage e), of linear alkylarylsulfonate, if no admixing has taken place in stages d) and e).

    PREPARATION OF BUTADIENE
    4.
    发明专利
    PREPARATION OF BUTADIENE 未知

    公开(公告)号：MY140092A

    公开(公告)日：2009-11-30

    申请号：MYPI20045270

    申请日：2004-12-21

    Applicant: BASF AG

    Inventor： JOHANN THORSTEN DR ,  SCHINDLER GOETZ-PETER DR ,  BRODHAGEN ANDREAS DR ,  CRONE SVEN DR ,  BENFER REGINA DR ,  HILL THOMAS DR ,  DUDA MARK DR

    IPC: C07C5/327 ,  C07C5/333 ,  C07C5/48 ,  C07C11/167

    Abstract: The disclosure relates to a process for preparing butadiene. The process involves nonoxidatively catalytically dehydrogenating butane to obtain a product gas stream containing butane, 1-butene, 2-butene, butadiene, hydrogen and secondary constituents. The 1-butene and 2-butene of the product gas stream is then oxidatively dehydrogenated to give a second gas stream containing butane,2-butene, butadiene, hydrogen, steam and secondary constituents. Next, the butane,2-butene and butadiene are separated from the second gas stream and the butane and 2-butene are then separated from the butadiene product. The butane and 2-butene are then recycled into the nonoxidative catalytic dehydrogenating zone.

    REACTOR FOR GAS/LIQUID OR GAS/LIQUID/SOLID REACTIONS
    5.
    发明专利
    REACTOR FOR GAS/LIQUID OR GAS/LIQUID/SOLID REACTIONS 未知

    公开(公告)号：MY138099A

    公开(公告)日：2009-04-30

    申请号：MYPI20021542

    申请日：2002-04-26

    Applicant: BASF AG

    Inventor： BENFER REGINA DR ,  NILLES MICHAEL DR ,  WEINLE WERNER ,  ZEHNER PETER DR

    IPC: C07D319/06 ,  B01D3/00 ,  B01D3/20 ,  B01J8/04 ,  B01J8/18 ,  B01J8/22 ,  B01J8/34 ,  B01J10/00 ,  B01J19/24 ,  B01J47/00 ,  C07C68/04 ,  C07C69/96

    Abstract: A REACTOR (1) HAVING A VERTICAL LONGITUDINAL AXIS AND AN INLET (2) FOR A LIQUID OR LIQUID/SOLID FEED STREAM IN THE UPPER REGION OF THE REACTOR AND AN INLET (3) FOR A GASEOUS STREAM IN THE LOWER REGION OF THE REACTOR (1), CHARACTERIZED BY - AT LEAST TWO CHAMBERS (4) ARRANGED ABOVE ONE ANOTHER IN THE LONGITUDINAL DIRECTION,WHERE - THE CHAMBERS (4) ARE SEPARATED FROM ONE ANOTHER BY LIQUID-TIGHT BOTTOM PLATES, - EACH CHAMBER IS CONNECTED VIA A LIQUID OVERFLOW (6) TO THE CHAMBER (4) LOCATEDIMMEDIATELY UNDERNEATH AND A LIQUID PRODUCT STREAM IS TAKEN OFF VIA THE LIQUID OVERFLOW (6) OF THE BOTTOMMOST CHAMBER (4), - THE GAS SPACE (7) ABOVE THE LIQUID SURFACE IN EACH CHAMBER (4) IS CONNECTED TO THECHAMBER (4) LOCATED IMMEDIATELY ABOVE IT BY ONE OR MORE GUIDE TUBES (8) WHICH OPENS (EACH OPEN) INTO A GAS DISTRIBUTOR (9) PROVIDED WITH OPENINGS FOR EXIT OF GASBELOW THE LIQUID SURFACE, - AND EACH CHAMBER IS PROVIDED WITH AT LEAST ONE GUIDE PLATE (12) WHICH IS ARRANGEDVERTICALLY AROUND EACH SIPHON LIKE GAS DISTRIBUTOR (9) AND WHOSE UPPER END IS BELOW THE LIQUID SURFACE AND WHOSE LOWER END IS ABOVE THE LIQUID - TIGHT BOTTOMPLATE (5) OF THE CHAMBER (4) AND WHICH DIVIDES EACH CHAMBER (4) INTO ONE OR MORESPACES INTO WHICH GAS FLOWS (13) AND ONE OR MORE SPACES INTO WHICH GAS DOESNOT FLOW (14), IS USED FOR GAS/LIQUID OR GAS/LIQUID/SOLID REACTIONS. (FIGURE 1)

Patent Agency Ranking