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    VERFAHREN ZUR DESTILLATIVEN GEWINNUNG VON MALEINSÄUREANHYDRID
    4.
    发明公开
    VERFAHREN ZUR DESTILLATIVEN GEWINNUNG VON MALEINSÄUREANHYDRID 审中-公开
    程序用于获得蒸馏顺酐

    公开(公告)号：EP2139840A1

    公开(公告)日：2010-01-06

    申请号：EP08718043.6

    申请日：2008-03-19

    Applicant: BASF SE

    Inventor： WINDECKER, Gunther ,  KAIBEL, Gerd ,  STEINIGER, Michael ,  BUNTROCK, Thilo ,  WEIGUNY, Jens ,  VANDEN HAUTTE, Dany ,  LURQUIN, Thierry

    IPC: C07C51/573 ,  C07C57/145 ,  B01D3/14

    CPC classification number: B01D3/14 ,  B01D3/141 ,  C07C51/573 ,  C07C57/145

    Abstract: The invention relates to a method for the recovery of maleic anhydride by distillation from a solution of maleic anhydride in a high-boiling absorbent. The solution is obtained by the gas phase oxidation of a hydrocarbon and by at least the partial absorption of the oxidation products in the absorbent.For the method, i) the solution is introduced laterally into an inlet column with a reinforcing part above the inlet site and an output part below the inlet site; ii) an upper combining column communicating with the upper end of the reinforcing part and a lower combining column communicating with the lower end of the output part are provided; iii) a take-off column, communicating with the upper combining column and the lower combining column, is provided; iv) maleic anhydride is drawn off as a side take-off from the take-off column, and compounds, boiling lower than maleic anhydride, are taken off at the head of the upper combining column, and the higher boiling absorbent is taken off in the sump of the lower combining column. The maleic anhydride, obtained as a side take-off, has a low acrylic acid and acetic acid content.

    VORRICHTUNG ZUR FLÜSSIGKEITSKÜHLUNG VON VERBRENNUNGSKRAFTMASCHINEN UND VERFAHREN ZU DEREN HERSTELLUNG
    5.
    发明公开
    VORRICHTUNG ZUR FLÜSSIGKEITSKÜHLUNG VON VERBRENNUNGSKRAFTMASCHINEN UND VERFAHREN ZU DEREN HERSTELLUNG 审中-公开
    装置用于内燃机的液冷和方法及其

    公开(公告)号：EP1982057A2

    公开(公告)日：2008-10-22

    申请号：EP07704150.7

    申请日：2007-01-26

    Applicant: BASF SE

    Inventor： KORMANN, Claudius ,  KAIBEL, Gerd ,  NEUMANN, Dirk

    IPC: F01P3/02 ,  F02F1/16 ,  F02F1/38 ,  F28F13/00

    CPC classification number: F01P3/02 ,  F01P7/165 ,  F01P2003/027 ,  F01P2003/182 ,  F28D2021/0094 ,  F28F13/185 ,  Y10T29/49231

    Abstract: The invention relates to a liquid cooling device in an internal combustion engine (11) and to a process for manufacturing same. The device according to the invention comprises a cooling circuit (13) having at least one cooling duct (23, 24, 41) for a liquid coolant, the duct being in thermal contact with at least one component (12a, 12b, 31) of the internal combustion engine (11). A wall of the cooling duct (23, 24, 41) that comes into contact with the coolant comprises in at least one partial zone a microstructured surface with a certain porosity and roughness. According to the invention, this device is produced by forming a cooling circuit for a liquid coolant, the circuit comprising cooling ducts that can be brought at least in part into thermal contact with the internal combustion engine, and by generating a microstructured surface on at least part of the walls of the cooling ducts that come into contact with the liquid coolant.

    VERFAHREN ZUR DESTILLATIVEN AUFARBEITUNG EINES METHANOL/WASSER-GEMISCHS SOWIE VERFAHREN ZUR HERSTELLUNG VON ALKALIMETHYLATEN
    7.
    发明公开
    VERFAHREN ZUR DESTILLATIVEN AUFARBEITUNG EINES METHANOL/WASSER-GEMISCHS SOWIE VERFAHREN ZUR HERSTELLUNG VON ALKALIMETHYLATEN 审中-公开
    法进行处理的蒸馏甲醇/水混合物及其制造方法的碱金属甲醇

    公开(公告)号：EP2401045A1

    公开(公告)日：2012-01-04

    申请号：EP10703905.9

    申请日：2010-02-17

    Applicant: BASF SE

    Inventor： KAIBEL, Gerd ,  SIRCH, Tilmann ,  FELDER, Raimund ,  GUTH, Josef

    IPC: B01D1/28 ,  B01D3/00 ,  B01D3/14 ,  C07C29/70 ,  C07C31/30

    CPC classification number: B01D3/009 ,  B01D1/2856 ,  B01D3/14 ,  C07C29/70 ,  Y02P20/127 ,  C07C31/30

    Abstract: The invention relates to a method for the distillative processing of a methanol/water mixture, wherein a methanol/water mixture is added to a distillation column (1), a vapor stream substantially comprising methanol is removed at the head of the distillation column (1), and a bottom stream substantially comprising water is withdrawn at the base of the distillation column (1), at least part of the vapor stream substantially comprising methanol is condensed and the condensed vapor stream is added as heating vapor to an evaporator (11), in which at least part of the methanol/water mixture to be separated is vaporized. The invention further relates to a method for producing alkali methylates in a reaction column (31), wherein methanol and alkaline lye are added to the reaction column (31). At the lower end of the reaction column (31), alkali methylate dissolved in methanol is withdrawn, and a methanol/water mixture is withdrawn at the upper end of the reaction column (31) and the methanol/water mixture is processed by way of the method for distillative processing.

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