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    VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN ISOCYANATEN
    2.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN ISOCYANATEN 有权
    用于生产芳族异氰酸

    公开(公告)号：EP2323973A1

    公开(公告)日：2011-05-25

    申请号：EP09781542.7

    申请日：2009-08-06

    Applicant: BASF SE

    Inventor： PENZEL, Ulrich ,  MATTKE, Torsten ,  WÖLFERT, Andreas ,  JACOBS, Johannes ,  CHENG, Tsung-Chieh ,  HEINEN, Kerstin ,  STROEFER, Eckhard ,  MAIXNER, Stefan ,  MACKENROTH, Wolfgang ,  TRAGUT, Christian ,  THIELE, Kai ,  WON, Myung Un

    IPC: C07C263/10

    CPC classification number: C07C263/10 ,  C07C265/14

    Abstract: The invention relates to a method for producing isocyanates through reaction of the corresponding amines with phosgene in the liquid phase, optionally in the presence of at least one inert medium, in which first the amine and the phosgene are mixed in a mixing chamber (1) to form a reaction mixture and the reaction mixture is fed to a reactor, wherein the amine is added through an opening (3) that is disposed coaxially to the mixing chamber (1) and wherein the phosgene is added through feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1), or the phosgene is added through the opening (3) that is coaxial to the mixing chamber and the amine is added through the feed openings (5) in at least two planes (7, 9) disposed perpendicular to the axis (11) of the mixing chamber (1). At least one plane (9) is disposed upstream in the main flow direction of the reaction mixture and at least one plane (7) is disposed downstream relative to the opening (3) disposed coaxially to the mixing chamber (1). The average residence time of the reaction mixture in the mixing chamber (1) is no more than 20 ms.

    METHOD FOR PURIFYING A CHLORINE SUPPLY
    4.
    发明授权
    METHOD FOR PURIFYING A CHLORINE SUPPLY 有权
    清理方法氯气原料的

    公开(公告)号：EP2499090B1

    公开(公告)日：2016-10-26

    申请号：EP10774238.9

    申请日：2010-11-10

    Applicant: BASF SE

    Inventor： GAGNON, Steven Dallas ,  JACOBS, Johannes ,  DOERR, Robert A. ,  BORDELON, Kenneth K. ,  GRZANKA, Thomas A.

    IPC: C01B7/07 ,  C01B7/075 ,  C01B31/28 ,  B01D3/14

    CPC classification number: C01B7/0743 ,  B01D3/148 ,  B01J2219/32 ,  C01B7/075 ,  C01B32/80

    Abstract: This invention provides a method for purifying a chlorine supply that includes a chlorine component, a bromine component, and nitrogen trichloride. The method includes the steps of introducing the chlorine supply into a vaporizer, heating the chlorine supply in the vaporizer to form a vapor, and introducing the vapor into a distillation system to provide purified chlorine gas, a distillate that includes liquid chlorine and the bromine component, and a bottoms component including the nitrogen trichloride. The method also includes the steps of condensing the vapor in a reflux condenser, heating the condensate in a reboiler, removing the purified chlorine gas from the distillation system, and removing the distillate from the distillation system.

    VERFAHREN ZUR HERSTELLUNG VON DIPHENYLMETHANDIAMIN
    8.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON DIPHENYLMETHANDIAMIN 有权
    用于生产二苯基甲烷二

    公开(公告)号：EP2288591A1

    公开(公告)日：2011-03-02

    申请号：EP09765702.7

    申请日：2009-05-20

    Applicant: BASF SE

    Inventor： JACOBS, Johannes

    IPC: C07C209/78 ,  C07C209/84 ,  C07C211/50

    CPC classification number: C07C209/78 ,  C07C209/84 ,  C07C211/53

    Abstract: The invention relates to a method for producing mixtures of diphenylmethane diamine and polyphenylenepolymethylene polyamines, comprising the steps of a) reaction of aniline with formaldehyde in the presence of hydrochloric acid, b) neutralization of the reaction mixture obtained in step a), c) separation of the organic phase from the aqueous phase, d) processing of the organic phase, e) processing of the aqueous phase, characterized in that step e) comprises at least the steps e1) extraction of the aqueous phase with an organic solvent; e2) stripping the aqueous phase obtained from step e1); e3) absorption of the solution obtained from step e2).

    VERFAHREN ZUR AUFREINIGUNG VON 4,4'-METHYLENDIPHENYLDIISOCYANAT ENTHALTENDEN MISCHUNGEN
    9.
    发明公开
    VERFAHREN ZUR AUFREINIGUNG VON 4,4'-METHYLENDIPHENYLDIISOCYANAT ENTHALTENDEN MISCHUNGEN 有权
    法提纯4,4-含有异氰酸酯混合工

    公开(公告)号：EP2640695A1

    公开(公告)日：2013-09-25

    申请号：EP11782619.8

    申请日：2011-11-15

    Applicant: BASF SE

    Inventor： BOCK, Michael ,  JACOBS, Johannes ,  THIELE, Kai ,  MERTEN, Anne-Kathrin

    IPC: C07C263/20 ,  C07C265/14

    CPC classification number: C07C263/20 ,  C07C265/14

    Abstract: The invention relates to a process for purifying mixtures comprising 4,4'-methylene diphenyl diisocyanate, comprising the distillative purification of a mixture I comprising 4,4'-methylene diphenyl diisocyanate having a content of hydrolysable chlorine to ASTM D4663-10 of more than 100 ppm by means of a column K1, wherein the gaseous stream consisting of mixture I is contacted in column K1 with at least one liquid compound A which has a boiling point which is the same as or higher than 4,4'-methylene diphenyl diisocyanate and which has a content of hydrolysable chlorine to ASTM D4663-10 of at most 100 ppm, and wherein the gaseous stream O which is obtained at the top of the column and comprises 4,4'-methylene diphenyl diisocyanate has a content of hydrolysable chlorine to ASTM D4663-10 of at most 100 ppm.

    METHOD FOR PURIFYING A CHLORINE SUPPLY
    10.
    发明公开
    METHOD FOR PURIFYING A CHLORINE SUPPLY 有权
    清理方法氯气原料的

    公开(公告)号：EP2499090A2

    公开(公告)日：2012-09-19

    申请号：EP10774238.9

    申请日：2010-11-10

    Applicant: BASF SE

    Inventor： GAGNON, Steven Dallas ,  JACOBS, Johannes

    IPC: C01B7/07 ,  C01B7/075

    CPC classification number: C01B7/0743 ,  B01D3/148 ,  B01J2219/32 ,  C01B7/075 ,  C01B32/80

    Abstract: This invention provides a method for purifying a chlorine supply that includes a chlorine component, a bromine component, and nitrogen trichloride. The method includes the steps of introducing the chlorine supply into a vaporizer, heating the chlorine supply in the vaporizer to form a vapor, and introducing the vapor into a distillation system to provide purified chlorine gas, a distillate that includes liquid chlorine and the bromine component, and a bottoms component including the nitrogen trichloride. The method also includes the steps of condensing the vapor in a reflux condenser, heating the condensate in a reboiler, removing the purified chlorine gas from the distillation system, and removing the distillate from the distillation system.

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