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    METHOD FOR PRODUCING C5 ACETATE
    1.
    发明专利
    METHOD FOR PRODUCING C5 ACETATE 审中-公开

    公开(公告)号：JP2002326975A

    公开(公告)日：2002-11-15

    申请号：JP2002086904

    申请日：2002-03-26

    Applicant: BASF AG

    Inventor： RHEUDE UDO ,  VICARI MAXIMILIAN ,  AQUILA WERNER ,  WEGNER GUENTER ,  NIEKERKEN JOERG

    IPC: C07C67/04 ,  C07B61/00 ,  C07C67/29 ,  C07C67/297 ,  C07C69/145

    Abstract: PROBLEM TO BE SOLVED: To improve a space time yield in a hydroformylation reaction of 3,4-diacetoxy-1-butene (3,4-DABE) for obtaining a C5 acetate for synthesizing vitamin A and to enhance the economic efficiency thereof. SOLUTION: This method is for producing the C5 acetate for synthesizing vitamin A by the hydroformylation of 3,4-DABE and characterized by using a 3,4-DABE-containing flow obtained by carrying out acetoxylation of 1,3-butadiene with acetic acid and air in the presence of a catalyst and extracting the 3, 4-DABE generated as a byproduct in the case by distillation.

    Reactive distillation apparatus for production of ethers from hydrocarbon fractions comprises simultaneous hydrogenation, etherification and distillative separation
    5.
    发明专利
    Reactive distillation apparatus for production of ethers from hydrocarbon fractions comprises simultaneous hydrogenation, etherification and distillative separation 未知

    公开(公告)号：DE10033958A1

    公开(公告)日：2002-01-24

    申请号：DE10033958

    申请日：2000-07-13

    Applicant: BASF AG

    Inventor： HILL THOMAS ,  KAIBEL GERD ,  MEYER GERALD ,  NIEKERKEN JOERG ,  SCHOENMAKERS HARTMUT

    IPC: B01D3/14 ,  C07C41/06 ,  C07C41/42 ,  C07C7/04 ,  C07C7/05 ,  C07C7/163

    Abstract: Distillation apparatus, consisting of a partitioned column or a system of thermally coupled distillation columns, includes inlet lines for a hydrocarbon mixture, hydrogen and alcohol, outlet lines for low, medium and high boilers and heterogeneous hydrogenation and etherification catalysts, all located in specific segments of the apparatus. In operation hydrogen is obtained as low boiler and ether as high boiler. Distillation apparatus consists of a partitioned column or a system of thermally coupled distillation columns, including the following segments: (a) highest region of the overall arrangement; (b) concentration region of the feed unit; (c) distillation region of the feed unit; (d) upper region of the withdrawal unit; (e) lower region of the withdrawal unit; and (f) lowest region of the overall arrangement. Also provided are: a hydrocarbon mixture inlet point between segments (b) and (c); a medium boilers outlet point between (d) and (e); a low boilers outlet point in (a); a low boilers outlet point in (f); at least one hydrogen inlet point below (a); at least one alcohol inlet point in (a), (b) and/or (c); inserts containing a heterogeneous hydrogenation catalyst in (a), (d), (e) and/or (f); and inserts containing a heterogeneous etherification catalyst in (a), (b), (c) and/or (f). In operation hydrogen is obtained as low boiler and ether as high boiler. An Independent claim is included for a process for reactive distillation of hydrocarbon mixtures using the apparatus.

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