METHOD FOR THE PRODUCTION OF ALDEHYDES

    公开(公告)号:MY118644A

    公开(公告)日:2004-12-31

    申请号:MYPI9900188

    申请日:1999-01-16

    Applicant: BASF AG

    Abstract: IN A PROCESS FOR PREPARING ALDEHYDES OR ALDEHYDES AND ALCOHOLS BY HYDROFORMYLATION OF OLEFINS IN THE PRESENCE OF A CATALYST COMPLEX WHICH IS HOMOGENEOUSLY DISSOLVED IN THE REACTION MIXTURE AND COMPRISES A METAL OF GROUP VIIIA OF THE PERIODIC TABLEE OF THE ELEMENTS AND AS LIGAND A PHOSPHORUS-FREE, POLYDENTATE NITROGEN COMPOUND CAPABLE OF COMPLEX FORMATION, AT FROM 50 TO 100oC AND PRESSURES OF FROM 20 TO 1000 BAR, AND RECYCLING OF THE CATALYSTCOMPLEX TO THE HYDROFORMYLATION REACTION, A ) THE LIGANDS USED ARE MODIFIED POLYAMINES WHICH ARE ESSENTIALLY INSOLUBLE IN WATER, ARE CAPABLE OF COMPLEX FORMATION, HAVE A MEAN MOLECULAR WEIGHT OF GREATER THAN 1000 DALTON AND CONTAIN AT LEAST 10 NITROGEN ATOMS, B ) AFTER THE HYDROFORMYLATION REACTION IS COMPLETE AND THE ALDEHYDES AND ALCOHOLS HAVE BEEN SEPARATED OR PARTIALLY SEPARATED FROM THE REACTION MIXTURE BY DISTILLATION, THE CATALYST COMPLEX AND EXCESS LIGAND REMAINING IN THE DISTILLATION BOTTOMS ARE COMPLETELY OR PARTIALLY RECYCLED TO THE HYDROFORMYLATION AND C ) AT LEAST PART OF THE HIGH BOILERS ARE BLED OFF, CONTINUOUSLY OR AT LEAST BATCHWISE, FROM THE BOTTOMS FROM THE DISTILLATION OF THE REACTION MIXTURE.

    95.
    发明专利
    未知

    公开(公告)号:AT234802T

    公开(公告)日:2003-04-15

    申请号:AT99942870

    申请日:1999-08-13

    Applicant: BASF AG

    Abstract: A process for the preparation of aldehydes and/or alcohols or amines by reacting olefins in the liquid phase with carbon monoxide and hydrogen, a part of these gases being dispersed in the form of gas bubbles in the reaction liquid and another part being dissolved in the reaction liquid, in the presence or absence of a primary or secondary amine and in the presence of a cobalt carbonyl, rhodium carbonyl, palladium carbonyl or ruthenium carbonyl complex dissolved homogeneously in the reaction liquid and having a phosphorus-, arsenic-, antimony- or nitrogen-containing ligand, at elevated temperatures and at 1 to 100 bar, wherein the reaction is carried out in a vertically arranged, tubular reactor comprising a reactor body and at least one circulation line, a part of the reaction liquid is fed continuously via the circulation line to at least one nozzle which is mounted in the upper part of the reactor body and is coordinated with a guide member, open at the top and bottom and bounded by parallel walls, in the interior of the reactor and with a baffle present below the lower opening of the guide member, and a downward-directed liquid stream containing dispersed gas bubbles is produced by means of this nozzle in this guide member and, after leaving the guide member, is deflected into a stream flowing upward in the space between the wall of the guide member and the wall of the reactor body and is sucked into the guide member at the upper end of the guide member by the jet of the nozzle coordinated with the guide member.

    97.
    发明专利
    未知

    公开(公告)号:DE50000730D1

    公开(公告)日:2002-12-12

    申请号:DE50000730

    申请日:2000-03-15

    Applicant: BASF AG

    Abstract: Phosphabenzene compounds of the formula (I)where the radicals R1 to R13 are, independently of one another, hydrogen, COOM, SO3M, NR3X, NR2, OR, COOR or SR (where M=hydrogen, NH4 or alkali metal, X=anion, R=hydrogen or C1-C6-alkyl), or C1-C12-alkyl, C6-C12-aryl, C7-C12-aralkyl, C7-C12-alkaryl or C3-C6-heteroaromatics, where the alkyl, aryl, alkaryl and aralkyl radicals may bear the abovementioned radicals as substituents and two or more of the radicals may be joined to form aliphatic or fused-on rings, where at least one of the radicals R4 and R8 and at least one of the radicals R9 and R13 is not hydrogen, can be used for preparing hydroformylation catalysts.

    MODIFIED METHOD FOR PRODUCING HIGHER ALPHA-OLEFIN

    公开(公告)号:CA2434579A1

    公开(公告)日:2002-08-29

    申请号:CA2434579

    申请日:2002-01-23

    Applicant: BASF AG

    Abstract: The invention relates to a method for selective production of linear .alpha. - olefins having a carbon number ranging from 6 20, comprising the following steps: a) reaction of a linear, internal olefin or a mixture of linear, internal olefins having a carbon number of (n/2) + 1, wherein n is the carbo n number of the desired linear .alpha.-olefin, in a transalkylation with a trialkyl aluminium compound in isomerizing conditions, wherein an olefin corresponding to the alkyl radical is released and the linear olefin thus added becomes attached to the aluminium during isomerization and the formati on of a corresponding linear alkyl aluminium compound; b) reaction of the forme d linear alkyl aluminium compound with an olefin upon release of the corresponding linear .alpha. olefin having a carbon number of (n/2) + 1 and formation of a trialkyl aluminium compound, c) introduction of the formed linear .alpha.-olefin into a self methathesis reaction, wherein a linear internal olefin having the desired carbon number n is formed, d) reaction of the formed olefin having a carbon number n with a trialkyl aluminium compoun d in isomerizing conditions, wherein an olefin corresponding to the alkyl radical is released and the linear, internal olefin becomes attached to the aluminium upon isomerization and formation of a corresponding linear alkyl aluminium compound e) reaction of the formed linear alkyl aluminium compound with an olefin upon release of the linear .alpha.-olefin having the desired carbon number n and formation of a triialkylaluminium compound; f) isolation of the desired linear .alpha.-olefin having a carbon number n.

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