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    264.
    发明专利
    未知

    公开(公告)号：AT376540T

    公开(公告)日：2007-11-15

    申请号：AT01996522

    申请日：2001-11-15

    Applicant: BASF AG

    Inventor： BOHNER GERD ,  KINDLER KLAUS ,  PAHL MELANIE ,  KAIBEL GERD

    IPC: C07C11/167 ,  B01D3/14 ,  C07C7/04

    Abstract: A process for obtaining pure 1,3-butadiene from crude 1,3-butadiene by distillation is carried out in a dividing wall column in which a dividing wall is located in the longitudinal direction of the column to form an upper common column region, a lower common column region, a feed section and an offtake section.

    METODO Y DISPOSITIVO PARA TRATAR UNA FRACCION C4.
    265.
    发明专利
    METODO Y DISPOSITIVO PARA TRATAR UNA FRACCION C4. 未知

    公开(公告)号：ES2279821T3

    公开(公告)日：2007-09-01

    申请号：ES01945105

    申请日：2001-05-09

    Applicant: BASF AG

    Inventor： MEYER GERALD ,  KAIBEL GERD ,  BOHNER GERD ,  KINDLER KLAUS ,  ADRIAN TILL ,  PICKENACKER KARIN

    IPC: C07C7/08 ,  C07C11/167 ,  B01D3/14 ,  B01D3/40 ,  C07C5/09 ,  C07C7/00 ,  C07C7/163 ,  C10G7/08 ,  C10G70/00 ,  C10G70/02

    Abstract: Un proceso para el trabajo de una fracción C4, que comprende las etapas de proceso - Destilación extractiva (I), - Hidrogenación selectiva de impurezas acetilénicas sobre un catalizador heterogéneo (II), una corriente de 1, 3-butadieno crudo que comprende un producto objetivo 1, 3-butadieno en una fracción de al menos 80% en peso que se obtiene siguiendo las etapas del proceso I y II y - La destilación de la corriente de 1, 3-butadieno crudo para aislar el 1, 3-butadieno (III) que comprende el producto objetivo 1, 3-butadieno en una fracción de al menos 99% en peso, en donde las etapas de proceso I y II se llevan a cabo en una columna única y el proceso de la etapa III se lleva a cabo en una segunda columna, el catalizador heterogéneo utilizado para la hidrogenación selectiva de impurezas acetilénicas está presente en la forma de internos reactivos.

    Production of a mixture containing hydrogen, methane, carbon dioxide and water, comprises reacting carbon-containing substrates with supercritical water in a reactor in auto-catalytic operation or in presence of catalysts
    266.
    发明专利
    Production of a mixture containing hydrogen, methane, carbon dioxide and water, comprises reacting carbon-containing substrates with supercritical water in a reactor in auto-catalytic operation or in presence of catalysts 未知

    公开(公告)号：DE102007003294A1

    公开(公告)日：2007-08-09

    申请号：DE102007003294

    申请日：2007-01-23

    Applicant: BASF AG

    Inventor： KAIBEL GERD ,  PUETTER HERMANN ,  STAECK BIANCA ,  MOHL KLAUS-DIETER

    IPC: C10J3/00 ,  C01B3/02

    Abstract: The production of a mixture containing hydrogen, methane, carbon dioxide and water comprises reacting carbon-containing substrates with supercritical water in a reactor (8) at a temperature of 400-1000[deg]C and pressure of 221-400 bar in auto-catalytic operation or in presence of catalysts. The carbon contained in the substrate is oxidized partially by oxygen, which originates from the decomposition of the supercritical water or is dissolved in the initial mixture. The reaction is carried out in a diffusion-welded plate-type heat exchanger. The production of a mixture containing hydrogen, methane, carbon dioxide and water, comprises reacting carbon-containing substrates with supercritical water in a reactor (8) at 400-1000[deg]C and at 221-400 bar in auto-catalytic operation or in presence of catalysts. The carbon contained in the substrate is oxidized partially by oxygen, which originates from the decomposition of the supercritical water or is dissolved in the initial mixture. The reaction is carried out in a diffusion-welded plate-type heat exchanger. The heating of the reactant mixture and the cooling of the formed product mixture take place under heat recovery through heat exchange in a heat exchanger, in which a hydraulic diameter of the flow channels is 0.5-15 mm. The heat exchanger is predominantly operated in a counter-current mode and has average driving temperature gradient of 0.2 to 50[deg]C. The product discharged from the reactor is cooled down at 20-60[deg]C and the gaseous products are separated at 35-70 bar. The carbon dioxide contained in the gaseous product is separated through distillation or absorption. The obtained carbon dioxide is supplied to a further material recycling or a sequestration step. The reactant mixture is superheated at the end of the heating stretch for reaching the endothermic heat of reaction. A part of the developing reaction gases are burned for the purpose of heating and the hot incineration gases are led over the heat exchanger, in which the reactant mixture is heated. The product gases such as hydrogen, methane and carbon dioxide are separated in a distillation column operated under positive pressure into a hydrogen/methane-rich fraction over the head, carbon dioxide-rich fraction over a lateral discharge and a water fraction as sump product. The distillate separation takes place in a partition column or in an arrangement of thermally-coupled distillation columns. The product gases are released from the cooled down reaction discharge by decompression at a lower pressure of 30-50 bar, and separated in a washing column that is exposed to water or an aqueous mixture, into a hydrogen and methane-containing head product as well as essentially a carbon dioxide and water-containing sump product, which by heating up and/or decompression can be further separated into nearly pure carbon dioxide and water fractions. The formed product gases are used as raw material for the production of hydrogen, after a partial separation of the contained carbon dioxide. Coal, liquid fuels, gaseous fuels, waste materials or their mixtures are used as carbon-containing substrates. The salt layers separating themselves from the heat exchanger surfaces are detached by cavitation forces. The flow channels exhibit periodic cross-section contractions and cross section expansions and water is led through the flow channels in cleaning processes. The ratio of the smallest to the largest flow cross-section is 0.5-0.8. Suspended salt particles, metal chips or ceramic(s) particles are added to the reactant mixture to prevent the building of salt deposits or to remove already formed salt deposits. An independent claim is included for a device for the production of a mixture containing hydrogen, methane, carbon dioxide and water.

    Separation of stereoisomeric alcohol, useful in fine chemistry and pharmaceutical chemistry, comprises distillative separation of the alcohol in the presence of chiral discriminators containing metal complex with a ligand
    268.
    发明专利
    Separation of stereoisomeric alcohol, useful in fine chemistry and pharmaceutical chemistry, comprises distillative separation of the alcohol in the presence of chiral discriminators containing metal complex with a ligand 未知

    公开(公告)号：DE102005046917A1

    公开(公告)日：2007-04-05

    申请号：DE102005046917

    申请日：2005-09-30

    Applicant: BASF AG

    Inventor： JAEKEL CHRISTOPH ,  PACIELLO ROCCO ,  KASHANI-SHIRAZI NAWID ,  KAIBEL GERD

    IPC: C07C27/32 ,  B01D3/40 ,  C07C37/80

    Abstract: Separation of stereoisomeric alcohol (A) comprises distillative separation in the presence of chiral discriminators containing metal complex with at least a ligand (I). Separation of stereoisomeric alcohol (A) comprises distillative separation in the presence of chiral discriminators containing metal complex with at least a ligand of formula (I). Either R1>-R4>alkyl (optionally substituted by 1-5 T), cycloalkyl, heterocycloalkyl or (het)aryl (all optionally substituted by 1-5 alkyl or T); or CR1>R2>, CR3>R4>5-8-membered heterocycle optionally fused to 1-3 (hetero)cycloalkyl or (het)aryl rings (optionally substituted, including on fused rings, by 1-4 (cyclo)alkyl, heterocycloalkyl, (het)aryl, OH, SH, polyalkyleneoxide, polyalkylene imine, alkoxy, halo, COOH, carboxylate, SO3, sulfonate, NE4>E5>, NE4>E5>E6>X->, NO2, alkoxycarbonyl, acyl or CN); X : completes 5-8 membered heterocycle (optionally interrupted by 1-2 optionally substituted heteroatoms) optionally fused to 1-2 (hetero)cycloalkyl or (het)aryl rings (optionally substituted, including on fused rings, by 1-4 (cyclo)alkyl, heterocycloalkyl, (het)aryl, OH, SH, polyalkylene oxide, polyalkylene imine, alkoxy, halo, COOH, carboxylate, SO3H, sulfonate, NE7>E8>, NE7>E8>E9>X->, NO3, alkoxycarbonyl, acyl or CN); or E1>-E9>H, (cyclo)alkyl or aryl; X->an anion; and T : (hetero)cycloalkyl, (het)aryl, (cyclo)alkoxy, heterocycloalkoxy, (het)aryloxy, OH, SH, polyalkylene oxide, polyalkylene imine, COOH, carboxylate, SO3H, sulfonate, NE1>E2>, NE1>E2>E3>X->, halo, NO2, acyl or CN. [Image].

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