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    METHOD FOR PRODUCING HIGHLY PURE MONOETHYLENE GLYCOL
    51.
    发明专利
    METHOD FOR PRODUCING HIGHLY PURE MONOETHYLENE GLYCOL 未知

    公开(公告)号：CA2345053C

    公开(公告)日：2008-07-15

    申请号：CA2345053

    申请日：1999-09-21

    Applicant: BASF AG

    Inventor： THEIS GERHARD ,  VANSANT FRANS ,  HASSE HANS ,  ADRIAN TILL ,  BESSLING BERND

    IPC: C07C29/80 ,  C07C29/10 ,  C07C31/20

    Abstract: The invention relates to a method for obtaining highly pure monoethylene glycol from the product of hydrolysis of ethylene oxide by distillation, by means of dehydration under pressure, preferably in a cascade, vacuum dehydration and subsequent pure distillation. During the vacuum dehydration, an aqueous stream containing monoethylene glycol in a concentration of less than 1 wt. %, preferably less than 0.1 wt. %, medium boilers and light boilers is drawn off and then sluiced out, optionally after reprocessing.

    METODO Y DISPOSITIVO PARA TRATAR UNA FRACCION C4.
    53.
    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.

    54.
    发明专利
    未知

    公开(公告)号：AT273265T

    公开(公告)日：2004-08-15

    申请号：AT01915134

    申请日：2001-01-12

    Applicant: BASF AG

    Inventor： AUER HEINZ ,  BESSLING BERND ,  HAMMER HANS ,  HASSE HANS ,  SAUER FRIEDRICH ,  VICARI MAXIMILIAN ,  ADRIAN TILL

    IPC: C07C51/09 ,  C07C51/44 ,  C07C51/48 ,  C07C53/02

    Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the methanol content in the methyl formate having been reduced in advance. The process according to the invention has the special feature that-before the hydrolysis of the methyl formate-the methanol content of the methanol-containing methyl formate is reduced in a distillation column, this distillation column simultaneously being employed for other separation functions during work-up of the formic acid.

    CONTINUOUS METHOD FOR SEPARATING A C4 CUT
    56.
    发明专利
    CONTINUOUS METHOD FOR SEPARATING A C4 CUT 未知

    公开(公告)号：CA2493079A1

    公开(公告)日：2004-02-05

    申请号：CA2493079

    申请日：2003-07-22

    Applicant: BASF AG

    Inventor： KINDLER KLAUS ,  HEIDA BERND ,  ADRIAN TILL ,  HILL THOMAS

    IPC: B01D3/40 ,  C07C5/22 ,  C07C7/08

    Abstract: The invention relates to a continuous method for separating a C4 cut (C4) by means of extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK). A separating wall (TW), forming a firs t partial region (A), a second partial region (B) and a lower common column region (C), is arranged in the longitudinal direction of the extractive distillation column (EDK). According to said method, a head flow (C4H10) comprising butane is separated from the first partial region (A), a head flo w (C4H8) comprising butene is separated from the second partial region (B), an d a flow (C4H6) comprising the hydrocarbons from the C4 cut is separated from the lower common column region (C), said hydrocarbons dissolving more easily in the selective solvent (LM) than the butane and the butene.

    60.
    发明专利
    未知

    公开(公告)号：NO20023514D0

    公开(公告)日：2002-07-23

    申请号：NO20023514

    申请日：2002-07-23

    Applicant: BASF AG

    Inventor： AUER HEINZ ,  BESSLING BERND ,  HAMMER HANS ,  HASSE HANS ,  SAUER FRIEDRICH ,  VICARI MAXIMILIAN ,  ADRIAN TILL

    IPC: C07C51/09 ,  C07C51/44 ,  C07C51/48 ,  C07C53/02 ,  C07C

    Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the methanol content in the methyl formate having been reduced in advance. The process according to the invention has the special feature that-before the hydrolysis of the methyl formate-the methanol content of the methanol-containing methyl formate is reduced in a distillation column, this distillation column simultaneously being employed for other separation functions during work-up of the formic acid.

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