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    21.
    发明专利
    未知

    公开(公告)号：ID27992A

    公开(公告)日：2001-05-03

    申请号：ID20002179

    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).

    Method for separating A C 4 hydrocarbon mixture
    22.
    发明专利
    Method for separating A C 4 hydrocarbon mixture 未知

    公开(公告)号：AU3606099A

    公开(公告)日：1999-11-16

    申请号：AU3606099

    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).

    METHOD FOR SEPARATING A C4 HYDROCARBON MIXTURE
    23.
    发明专利
    METHOD FOR SEPARATING A C4 HYDROCARBON MIXTURE 未知

    公开(公告)号：CA2330137A1

    公开(公告)日：1999-11-04

    申请号：CA2330137

    申请日：1999-04-13

    Applicant: BASF AG

    Inventor： PUHL HUBERT ,  KINDLER KLAUS

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

    Abstract: The invention relates to a method for separating a C4 hydrocarbon mixture containing essentially 1,3 butadiene, butenes, butanes and other C4 hydrocarbons into at least 4 fractions as follows: a) fraction (a) consisting essentially of 1,3 butadiene; b) fraction (b) consisting essentially of butenes; c) fraction (c) consisting essentially of butanes; and d) one or more fractions (d) consisting essentially of 1,3 butadiene and the other C4 hydrocarbons. According to said method, the C4 hydrocarbon mixture is separated by extractive distillation using N-methyl-2-pyrrolidinone or an aqueous solution of N-methyl-2-pyrrolidinone (NMP).

    CONTINUOUS METHOD FOR SEPARATING A C4 CUT
    24.
    发明专利
    CONTINUOUS METHOD FOR SEPARATING A C4 CUT 未知

    公开(公告)号：CA2493079C

    公开(公告)日：2012-03-20

    申请号：CA2493079

    申请日：2003-07-22

    Applicant: BASF AG

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

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

    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 first 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 flow (C4H8) comprising butene is separated from the second partial region (B), and 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.

    Continuous method for separating a C4 cut
    26.
    发明专利
    Continuous method for separating a C4 cut 未知

    公开(公告)号：AU2003250133B2

    公开(公告)日：2009-12-03

    申请号：AU2003250133

    申请日：2003-07-22

    Applicant: BASF AG

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

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

    Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).

    28.
    发明专利
    未知

    公开(公告)号：AT362905T

    公开(公告)日：2007-06-15

    申请号：AT02712897

    申请日：2002-02-06

    Applicant: BASF AG

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

    IPC: C07C11/167 ,  B01D3/40 ,  C07C7/08

    Abstract: A process for recovering crude 1,3-butadiene from a C 4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.

    METHOD FOR SEPARATING A C4 HYDROCARBON MIXTURE
    30.
    发明专利
    METHOD FOR SEPARATING A C4 HYDROCARBON MIXTURE 未知

    公开(公告)号：HU225347B1

    公开(公告)日：2006-10-28

    申请号：HU0102611

    申请日：1999-04-13

    Applicant: BASF AG

    Inventor： KINDLER KLAUS ,  PUHL HUBERT

    IPC: C07C9/10 ,  C07C7/08 ,  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).

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