METHOD FOR PRODUCING 1,4-BUTANEDIOL
    121.
    发明专利

    公开(公告)号:CA2329477C

    公开(公告)日:2009-03-24

    申请号:CA2329477

    申请日:1999-04-16

    Applicant: BASF AG

    Abstract: The invention relates to a method for producing 1,4-butanediol and possibly .gamma.-butyrolactone and tetrahydrofurane by oxidation of butane or benzol into a product flow containing maleic anhydride, absorption of maleic anhydride from the product flow by means of an inert, high-boiling solvent in an absorption stage, which yields a liquid absorption product, and esterification of said liquid absorption product with a C1-C5 esterification alcohol in an esterification step, yielding an esterification product containing the corresponding diester and high-boiling inert solvent. This is followed by hydrogenation of the esterification product, which results in an hydrogenation product containing the products 1,4-butanediol and optionally .gamma.-butyrolactone and tetrahydrofurane as well as the esterification alcohol. The hydrogenation product is separated by distillation into the products and the esterification alcohol and the esterification alcohol is returned to the esterification zone. Prior to hydrogenation the esterification product i s separated by distillation under reduced pressured into the diester and the inert solvent, the inert solvent is returned to the absorption stage and the diester is hydrogenated in the liquid phase on a fixed-bed catalyst.

    PROCEDIMIENTO PARA LA OBTENCION DE N-ALQUENILAMIDAS.

    公开(公告)号:ES2251414T3

    公开(公告)日:2006-05-01

    申请号:ES00983292

    申请日:2000-12-12

    Applicant: BASF AG

    Abstract: Procedimiento para la obtención de N- alquenilamidas mediante reacción de las correspondientes NH-amidas con acetilenos en la fase líquida en presencia de compuestos metálicos alcalinos básicos y un cocatalizador, caracterizado porque se emplea como cocatalizador compuestos de las fórmulas generales (Ia) y/o (Ib) (Ia): R1O-(CH2CH2CH2CH2O)n-H (Ib): R1O-(CH2CH2CH2CH2O)n-R2, donde n corresponde a 1, 2 o 3, y R1, R2, independientemente entre sí, significa alquilo con 1 a 6 átomos de carbono o alquenilo con 2 a 6 átomos de carbono, o R1, R2 significan conjuntamente una unidad butileno.

    130.
    发明专利
    未知

    公开(公告)号:DE102004038108A1

    公开(公告)日:2006-03-16

    申请号:DE102004038108

    申请日:2004-08-05

    Applicant: BASF AG

    Abstract: The present invention relates to a process for preparing alkylaromatics by reacting aromatic compounds with C1-C14-alkanes in the presence of a heterogeneous catalyst, which comprises using as the catalyst a crystalline, micro- and/or mesoporous solid comprising silicon and at least one father element selected from the group consisting of the transition metals and the main group elements gallium and tin, and activating said catalysts by a reducing pretreatment. Furthermore, the present invention relates to a process for preparing alkylarylsulfonates by sulfonating and neutralizing the alkyl aromatic compounds.

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