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    63.
    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.
    64.
    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.

    METHOD FOR SEPARATING OF A C4-HYDROCARBON MIXTURE
    65.
    发明专利
    METHOD FOR SEPARATING OF A C4-HYDROCARBON MIXTURE 未知

    公开(公告)号：MY121064A

    公开(公告)日：2005-12-30

    申请号：MYPI9901647

    申请日：1999-04-27

    Applicant: BASF AG

    Inventor： KINDLER KLAUS ,  PUHL HUBERT

    IPC: C07C7/08 ,  C07C9/10 ,  C07C11/08 ,  C07C11/16

    Abstract: A C4-HYDROCARBON MIXTURE ESSENTIALLY CONTAINING 1,3-BUTADIENE, BU-TENES, BUTANES AND OTHER C4-HYDROCARBONS IS SEPARATED INTO ATLEAST 4 FRACTIONS,A) THE FRACTION (A) ESSENTIALLY COMPRISING 1,3-BUTADIENE,B) THE FRACTION (B) ESSENTIALLY COMPRISING BUTENES,C) THE FRACTION (C) ESSENTIALLY COMPRISING BUTANES ANDD) ONE OR MORE FRACTIONS (D) ESSENTIALLY COMPRISING 1,3- BUTADIENE AND THE OTHER C4-HYDROCARBONS,BY. EXTRACTIVE DISTILLATION BY MEANS OF N-METHYL-2-PYRROLIDINONEOR AN AQUEOUS SOLUTION OF N-ME''THYL-2-PYRROLIDINONE (NMP).(FIG. 2)

    METHOD FOR WORKING UP CRUDE 1,3-BUTADIENE
    66.
    发明专利
    METHOD FOR WORKING UP CRUDE 1,3-BUTADIENE 未知

    公开(公告)号：PL373663A1

    公开(公告)日：2005-09-05

    申请号：PL37366303

    申请日：2003-07-23

    Applicant: BASF AG

    Inventor： HILL THOMAS ,  KINDLER KLAUS ,  HEIDA BERND

    IPC: C07C7/08 ,  C07C11/167

    Abstract: Sudstituted the abstract with a new abstract as follows: The invention relates to a continuous process for separation a mixture of hydrocarbons which has beenobtained by extractive distillation of C 4 fraction useing a selective solvent and the hydrocarbons from the fraction C 4 which are more readily soluble in the selective solvent than are the butanes and the butenes. The mixture is fed into a first distillation column in which it is separated into a steam which is taken off at the top and comprises 1,3-butadiene, propyne, possibly further low boilers and possibly water and a bottom stream comprising 1,3-butadiene, 1,2-butadiene, acetylenes and possibly further high boilers, with the proportion of 1,3-butadiene in the bottom stream from the distillatin column being regulated in such a way that it is at least sufficiently high to dilute the acetylenes to outside the range in which there is a risk of spontaneous decomposition. The stream taken off from the top of the first distillation column is fed to a second distillation column and is separated into a steam which is taken off at the top and comprises propyne, possibly further low boilers and possibly water and a bottom stream comprising pure 1,3-butadiene in the second distillation column.

    67.
    发明专利
    未知

    公开(公告)号：ES2203119T3

    公开(公告)日：2004-04-01

    申请号：ES99917975

    申请日：1999-04-13

    Applicant: BASF AG

    Inventor： KINDLER KLAUS ,  PUHL HUBERT

    IPC: C07C7/08 ,  C07C9/10 ,  C07C11/08 ,  C07C11/16

    Abstract: A C4-hydrocarbon mixture essentially containing 1,3-butadiene, butenes, butanes and other C4-hydrocarbons is separated into at least 4 fractions,a) the fraction (a) essentially comprising 1,3-butadiene,b) the fraction (b) essentially comprising butenes,c) the fraction (c) essentially comprising butanes andd) one or more fractions (d) essentially comprising 1,3-butadiene and the other C4-hydrocarbons,by extractive distillation by means of N-methyl-2-pyrrolidinone or an aqueous solution of N-methyl-2-pyrrolidinone (NMP).

    CONTINUOUS METHOD FOR SEPARATING A C4 CUT
    69.
    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.

    70.
    发明专利
    未知

    公开(公告)号：DE10219375A1

    公开(公告)日：2003-11-13

    申请号：DE10219375

    申请日：2002-04-30

    Applicant: BASF AG

    Inventor： TILL ADRIAN ,  HEIDA BERND ,  KINDLER KLAUS

    IPC: B01D3/14 ,  B01D3/40 ,  C07C7/08 ,  C07C9/10 ,  C07C11/08

    Abstract: A continuous process for isolating butenes from a C 4 fraction comprising butanes, butenes and other C 3 -C 5 -hydrocarbons by extractive distillation using a selective solvent (LM), comprising a first process stage I in a scrubbing zone (E) and a second process stage II in a degassing zone (A), wherein the liquid or a substream of the liquid is taken off from the degassing zone (A) at a theoretical plate located one or more theoretical plates below the feed point for the bottom stream (LM/C 4 H 8 ) from the scrubbing zone (E), heated and/or vaporized by indirect heat exchange with the hot bottom stream (LM) from the degassing zone (A) and returned to the degassing zone (A) at the same theoretical plate or above this, with the theoretical plate from which the liquid or substream of liquid is taken off being selected so that the total energy requirement in the process stages I and II is minimized, is proposed.

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