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    56.
    发明专利
    未知

    公开(公告)号：DE502004003884D1

    公开(公告)日：2007-07-05

    申请号：DE502004003884

    申请日：2004-03-20

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  PETZOLDT JOCHEN ,  ARNOLD HEIKO ,  RUPPEL WILHELM ,  MUELLER-ENGEL KLAUS JOACHIM

    IPC: C07C57/055 ,  C07C51/25

    Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed which consists of at least two fixed-bed catalyst bed zones and is arranged in two successive temperature zones A and B. The transition from temperature zone A to temperature zone B does not coincide with a transition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zone.

    Preparing organic target compound by heterogeneously catalyzed gas phase partial oxidation of organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of compound from gas stream
    57.
    发明专利
    Preparing organic target compound by heterogeneously catalyzed gas phase partial oxidation of organic precursor compound with molecular oxygen in two oxidation reactor lines operated in parallel and removal of compound from gas stream 未知

    公开(公告)号：DE102005009882A1

    公开(公告)日：2006-11-16

    申请号：DE102005009882

    申请日：2005-03-01

    Applicant: BASF AG

    Inventor： DIETERLE MARTIN ,  MUELLER-ENGEL KLAUS JOACHIM ,  PETZOLDT JOCHEN ,  HAMMON ULRICH

    IPC: C07B33/00 ,  C07B35/04 ,  C07C45/33 ,  C07C47/22 ,  C07C57/05

    Abstract: Preparing at least one organic target compound (I) by heterogeneously catalyzed gas phase partial oxidation of at least one organic precursor compound with molecular oxygen in at least two oxidation reactor systems comprising catalyst charges and are operated in parallel to obtain at least two product gas streams (II) each comprising (I) and each stemming from one of the at least two oxidation reactor systems and subsequent removal of (I) from (II) to obtain at least one crude target product stream, where the process comprises before, during and/or after the removal, mixing together (II). Preparing at least one organic target compound (I) by heterogeneously catalyzed gas phase partial oxidation of at least one organic precursor compound with molecular oxygen in at least two oxidation reactor systems comprising catalyst charges and are operated in parallel to obtain at least two product gas streams (II) each comprising (I) and each stemming from one of the at least two oxidation reactor systems and subsequent removal of (I) from (II) to obtain at least one crude target product stream, where the process comprises before the removal, mixing together (II); or in the course of the removal, mixing together at least two of any target product-comprising subsequent streams obtained on the route from (II) to the at least one crude target product stream; and/or after the removal from (II), mixing together any crude target product streams obtained in the course of the removal, to form a mixture stream, where at least one of the catalyst charges of the at least two oxidation reactor systems operated in parallel, over which the target compounds comprised in the mixture stream were formed, comprises at least one portion of catalyst over which the heterogeneously catalyzed gas phase partial oxidation has already been carried out longer than over all portions of catalyst of the at least one other catalyst charge. An independent claim is included for an apparatus comprising two oxidation reactor systems which are charged with catalysts that are suitable for the preparation of (I) by heterogeneously catalyzed partial oxidation of an organic precursor compound and at whose outlet is disposed in each case a line for the removal of the product gas stream comprising (I) from the particular oxidation reactor system, which lines are combined with increasing distance from the two oxidation reactor systems to give a product gas line which leads to an apparatus in which the product gas stream can be condensed partly or fully, where the catalyst charge of one of the two oxidation reactor systems comprises at least one portion of catalyst over which more target product has already been generated than over the portions of catalyst of the catalyst charge of the other oxidation reactor system.

    Method for the production of at least one partial propylene oxidation and/or ammoxidation product
    60.
    发明专利
    Method for the production of at least one partial propylene oxidation and/or ammoxidation product 未知

    公开(公告)号：ZA200503358B

    公开(公告)日：2006-07-26

    申请号：ZA200503358

    申请日：2005-04-26

    Applicant: BASF AG

    Inventor： ADAMI CHRISTOPH ,  HECHLER CLAUS ,  SCHINDLER GOETZ-PETER ,  PETZOLDT JOCHEN ,  MACHHAMMER OTTO ,  MUELLER-ENGEL KLAUS J ,  MARTAN HANS

    IPC: C07C20060101 ,  C07C7/05 ,  C07C47/22 ,  C07C57/04 ,  C07C253/18 ,  C07C255/08 ,  C07D20060101 ,  C07D301/08 ,  C07D303/04

    Abstract: Preparation of at least one partial oxidation and/or ammoxidation product of propylene involves subjecting crude propylene (prepared by dehydrogenation or oxydehydrogenation in the presence and/or absence of oxygen) in the presence of unconverted propane as a constituent of a gas mixture 2 which comprises a total 4C-hydrocarbon content of at most 3 vol.%, to a heterogeneously catalyzed gas phase partial oxidation and/or ammoxidation. Preparation of at least one partial oxidation and/or ammoxidation product of propylene involves: (a) subjecting crude propane in the presence of and/or absence of oxygen to a homogeneously and/or a heterogeneously catalyzed dehydrogenation and/or oxydehydrogenation to obtain a propane- and propylene-containing gas mixture 1; (b) optionally removing and/or converting to other compounds a portion of the constituents other than propane and propylene contained in the gas mixture 1 to obtain a gas mixture 1' comprising propane and propylene and also compounds other than oxygen, propane and propylene; and (c) subjecting gas mixture 1 and/or gas mixture 1' as a constituent of a gas mixture 2 to a heterogeneously catalyzed gas phase partial oxidation and/or partial gas phase ammoxidation of propylene contained in gas mixture 1 and/or 1'. The total content of 4C-hydrocarbons of gas mixture 2 is at most 3 vol.%.

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