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    VERFAHREN ZUR KOPPELPRODUKTION VON DI- UND/ODER POLYISOCYANATEN UND GLYKOLEN
    24.
    发明公开
    VERFAHREN ZUR KOPPELPRODUKTION VON DI- UND/ODER POLYISOCYANATEN UND GLYKOLEN 有权
    葡萄柚ON EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN EN

    公开(公告)号：EP2493850A1

    公开(公告)日：2012-09-05

    申请号：EP10778596.6

    申请日：2010-10-27

    Applicant: BASF SE

    Inventor： BOCK, Michael ,  BAUMANN, Robert ,  FRANZKE, Axel ,  STROEFER, Eckhard ,  THEIS, Gerhard

    IPC: C07C263/04 ,  C07C29/12 ,  C07C29/128 ,  C07C31/20 ,  C07C265/12 ,  C07C265/14

    CPC classification number: C07C263/04 ,  C07C29/12 ,  C07C29/128 ,  C07C68/065 ,  C07C2601/14 ,  C07C69/96 ,  C07C265/12 ,  C07C265/14 ,  C07C31/202

    Abstract: A process for coproducing di- and/or polyisocyanates and glycols, comprising process stages A, B, C and E for preparing glycols and process stages A, C, D, E, F and G for preparing di- and/or polyisocyanates, which comprises accomplishing the material coupling via the separation of the reaction mixture obtained in process stage A into process stages B and C, by in process stage A, reacting an aqueous alkylene oxide with carbon dioxide to give a reaction mixture comprising alkylene carbonate, hydrolyzing a portion of the alkylene carbonate-comprising reaction mixture obtained in process stage A to glycol in process stage B, dewatering the remaining alkylene carbonate-comprising stream of the reaction mixture from process stage A in process stage C, in process stage D, synthesizing amine by hydrogenating an aromatic nitro compound or a nitrile, in process stage E, transesterifying the dewatered alkylene carbonate-comprising mixture from process stage C with a monohydroxy alcohol to give the corresponding dialkyl carbonate, obtaining glycol as a coproduct, in process stage F, reacting the dialkyl carbonate-comprising reaction mixture obtained in process stage E with the amine obtained in process stage D to a mixture comprising the corresponding mono-, di- and/or polycarbamate, which in process stage G is cleaved to obtain the corresponding di- and/or polyisocyanate.

    Abstract translation: 一种用于共混生产二 - 和/或多异氰酸酯和二醇的方法，包括制备二元醇和工艺阶段A，C，D，E，F和G以制备二 - 和/或多异氰酸酯的工艺阶段A，B，C和E， 包括通过在工艺阶段A中通过将在工艺阶段A中获得的反应混合物分离成工艺阶段B和C来实现材料偶合，使环氧烷水溶液与二氧化碳反应，得到包含碳酸亚烷基酯的反应混合物，水解部分 在工艺阶段B中获得的含碳酸亚烷基酯的反应混合物在工艺阶段B中与二醇在工艺阶段D中在工艺阶段D中将来自反应混合物的剩余的含有碳酸亚烷烃的料流从工艺级A脱水，通过氢化合成胺 芳香族硝基化合物或腈，在工艺阶段E中，将来自工艺阶段C的脱水的含碳酸亚烷基酯混合物与一羟基醇进行酯交换，得到 将相应的碳酸二烷基酯作为副产物获得，在工艺阶段F中，使在工艺阶段E中获得的含碳酸二烷基酯的反应混合物与在工艺阶段D中获得的胺反应到包含相应的单 - ，二 - 和/ 或聚氨酯，其在工艺阶段G被切割以获得相应的二 - 和/或多异氰酸酯。

    VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN
    28.
    发明授权
    VERFAHREN ZUR HERSTELLUNG VON ISOCYANATEN 有权

    公开(公告)号：EP1976825B1

    公开(公告)日：2011-06-08

    申请号：EP07703734.9

    申请日：2007-01-09

    Applicant: BASF SE

    Inventor： KLÖTZER, Matthias ,  STROEFER, Eckhard ,  BLANKERTZ, Heinrich-Josef

    IPC: C07C263/06 ,  C07C265/14

    CPC classification number: C07C263/06 ,  C07C2601/14 ,  C07C265/14

    Abstract: The invention relates to a multi-stage method for continuously producing organic, distillable polyisocyanates, preferably diisocyanates, especially preferred aliphatic or cycloaliphatic diisocyanates, by reacting the corresponding organic polyamines with urea to give low-molecular monomeric polyureas. The invention also relates to the thermal decomposition of said substances.

    Abstract translation: 本发明涉及通过相应的有机多胺与脲形成低分子单体聚脲反应而连续制备有机，可蒸馏的多异氰酸酯，优选二异氰酸酯，更优选脂族或脂环族二异氰酸酯的多阶段方法，以及 其热分解。

    VERFAHREN ZUR HERSTELLUNG VON AROMATISCHEN ISOCYANATEN
    29.
    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.

    VERFAHREN ZUR HERSTELLUNG VON POLYOXYMETHYLENHOMO- ODER -COPOLYMEREN DURCH HOMO- ODER COPOLYMERISATION VON TRIOXAN, AUSGEHEND VON METHANOL
    30.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON POLYOXYMETHYLENHOMO- ODER -COPOLYMEREN DURCH HOMO- ODER COPOLYMERISATION VON TRIOXAN, AUSGEHEND VON METHANOL 审中-公开
    PROCESS FOR通过均聚或三恶烷共聚PRODUCING聚甲醛均聚物或共聚物，起动FROM甲醇

    公开(公告)号：EP2225296A1

    公开(公告)日：2010-09-08

    申请号：EP08861536.4

    申请日：2008-12-11

    Applicant: BASF SE

    Inventor： SIEGERT, Markus ,  KORTEKAMP, Tobias ,  STROEFER, Eckhard ,  SIGWART, Christoph ,  LANG, Neven

    IPC: C08G2/10 ,  C07D323/06

    CPC classification number: C07D323/06 ,  C08G2/10

    Abstract: Disclosed is a method for producing polyoxymethylene homopolymers or copolymers (7) by homopolymerizing or copolymerizing trioxane, starting from methanol (1) that is oxidized in a first reactor of a first production system (A) such that an aqueous formaldehyde-containing stream (2) is obtained that is fed to a second production system (B) in which pure trioxane (6) is obtained. In said method, low-boiling fractions (5) are separated by distillation, and the pure trioxane (6) is fed to a third production system (C) in which the pure trioxane (6) is homopolymerized or copolymerized to obtain polyoxymethylene homopolymers or copolymers (7). The disclosed method is characterized in that the stream of low-boiling fractions (5) is recycled from the column (K 2) separating low-boiling fractions into the inlet of the first reactor in the first production system (A).

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