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    42.
    发明专利
    未知

    公开(公告)号：DE10225928A1

    公开(公告)日：2003-12-24

    申请号：DE10225928

    申请日：2002-06-11

    Applicant: BASF AG

    Inventor： HESSE MICHAEL ,  SCHLITTER STEPHAN ,  BORCHERT HOLGER ,  SCHUBERT MARKUS ,  ROESCH MARKUS ,  BOTTKE NILS ,  FISCHER ROLF-HARTMUTH ,  WECK ALEXANDER ,  WINDECKER GUNTHER ,  HEYDRICH GUNNAR

    IPC: C07C29/149 ,  C07D315/00 ,  C07C29/132 ,  C07C31/20 ,  C07D307/20 ,  C07D307/32

    Abstract: The invention relates to a method for producing optionally akyl-substituted 1,4-butandiol by two-stage catalytic hydration in the gaseous phase of C4 dicarboxylic acids and/or the derivatives thereof with the steps of: a) introducing a gaseous flow of a C4 dicarboxylic acid or a derivative thereof at 200 to 300 °C and 2 to 60 bar in a first reactor and catalytic gas phase hydration to a mainly optionally alkyl-substituted gamma-butyrolactone containing product; b) introducing the product flow so obtained into a second reactor at a temperature of from 150 °C to 240 °C and a pressure of from 15 to 100 bar and catalytic gas phase hydration to optionally alkyl-substituted 1,4-butandiol; c) removing the desired product from the intermediates, byproducts and possibly not reacted educt; d) optionally returning non-reacted intermediates to one or both hydration stages, whereby in both hydration stages one catalyst each is used which comprises = 5 % by weight, preferably 5 to 95 % by weight, especially 20 to 90 % by weight of an oxidic carrier, the pressure prevailing in the second reactor is higher than in the first reactor, and the product mixture removed from the first reactor is introduced into the second reactor without further purifying it.

    Two-stage method for producing butandiol in two reactors
    44.
    发明专利
    Two-stage method for producing butandiol in two reactors 未知

    公开(公告)号：AU2003238491A8

    公开(公告)日：2003-12-22

    申请号：AU2003238491

    申请日：2003-06-10

    Applicant: BASF AG

    Inventor： ROSCH MARKUS ,  WECK ALEXANDER ,  HEYDRICH GUNNAR ,  SCHLITTER STEPHAN ,  FISCHER ROLF-HARTMUTH ,  BORCHERT HOLGER ,  SCHUBERT MARKUS ,  HESSE MICHAEL ,  BOTTKE NILS ,  WINDECKER GUNTHER

    IPC: C07C29/149 ,  C07D315/00 ,  C07C31/20 ,  C07D307/20

    Abstract: The invention relates to a method for producing optionally akyl-substituted 1,4-butandiol by two-stage catalytic hydration in the gaseous phase of C4 dicarboxylic acids and/or the derivatives thereof with the steps of: a) introducing a gaseous flow of a C4 dicarboxylic acid or a derivative thereof at 200 to 300 °C and 2 to 60 bar in a first reactor and catalytic gas phase hydration to a mainly optionally alkyl-substituted gamma-butyrolactone containing product; b) introducing the product flow so obtained into a second reactor at a temperature of from 150 °C to 240 °C and a pressure of from 15 to 100 bar and catalytic gas phase hydration to optionally alkyl-substituted 1,4-butandiol; c) removing the desired product from the intermediates, byproducts and possibly not reacted educt; d) optionally returning non-reacted intermediates to one or both hydration stages, whereby in both hydration stages one catalyst each is used which comprises = 5 % by weight, preferably 5 to 95 % by weight, especially 20 to 90 % by weight of an oxidic carrier, the pressure prevailing in the second reactor is higher than in the first reactor, and the product mixture removed from the first reactor is introduced into the second reactor without further purifying it.

    47.
    发明专利
    未知

    公开(公告)号：BR0016240A

    公开(公告)日：2002-08-27

    申请号：BR0016240

    申请日：2000-12-06

    Applicant: BASF AG

    Inventor： FRENZEL ANDREA ,  HESSE MICHAEL ,  ANSMANN ANDREAS ,  SCHWAB EKKEHARD

    IPC: B01J23/48 ,  B01J23/50 ,  B01J23/66 ,  B01J35/00 ,  C07B61/00 ,  C07B63/02 ,  C07C7/163 ,  C07C7/167 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  C07C11/10 ,  C07C11/167 ,  B01J23/56 ,  C07C5/08 ,  C07C5/02

    Abstract: The invention relates to a process for the selective hydrogenation of alkynes and dienes in C2-C5+-olefin mixtures,-in C2- or C3-streams of the olefin preparation by cracking. The method comprises conducting the hydrogenation in the presence of a catalyst particle comprising (a) a metal of the tenth group of the Periodic Table, (b) a metal of the eleventh group of the Periodic Table and (c) optionally a compound of a metal of the first or second group of the Periodic Table. Components (a) and (b), and optionally (c), are applied to a support selected from the group consisting of silica, titanium dioxide, zirconium oxides, spinels, zinc aluminates, zinc titanate, aluminosilicates and mixtures thereof. The metal of the eleventh group is distributed homogeneously over the cross-section of the catalyst particle, and the metal of the tenth group is present in an edge layer close to the surface of the catalyst particle.

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