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    PROCESS FOR THE PRODUCTION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES
    2.
    发明公开
    PROCESS FOR THE PRODUCTION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES 有权
    生产二苯基甲烷系列的DI-和多胺的方法

    公开(公告)号：EP3166922A1

    公开(公告)日：2017-05-17

    申请号：EP15732006.0

    申请日：2015-07-02

    申请人： Covestro Deutschland AG

    发明人： ARRAS, Jürgen ,  WERSHOFEN, Stefan ,  PERÈZ-RAMIREZ, Javier ,  KELLER, Tobias Caesar

    IPC分类号： C07C209/78 ,  C08G73/02 ,  C08L79/02

    CPC分类号： C08G12/08 ,  B01J29/08 ,  B01J29/18 ,  B01J29/70 ,  B01J29/7007 ,  C07C209/54 ,  C07C209/78 ,  Y02P20/582 ,  C07C211/50

    摘要： The invention relates to a production process for polyamines through condensation of aromatic amines with formaldehyde employing at least one solid zeolite catalyst partially or fully ion-exchanged to the protonic form which has been A) alkaline-treated, wherein the alkaline treatment is in case of BEA zeolites carried out in the presence of a pore-directing agent and in case of zeolites other than BEA zeolites in the presence or absence of a pore-directing agent, or H) acid-treated without any alkaline treatment preceding or following said acid treatment, wherein the acid treatment is effected with an organic acid with chelating function.

    摘要翻译： 本发明涉及一种通过芳族胺与甲醛缩合来制备聚胺的方法，其使用至少一种固体沸石催化剂部分或完全离子交换成A）碱处理过的质子型，其中碱处理是在 在存在或不存在孔引导剂的情况下在BEA沸石以外的沸石存在下进行的BEA沸石，或H）在所述酸处理之前或之后没有任何碱处理的情况下进行酸处理的BEA沸石 其中酸处理是用具有螯合功能的有机酸进行的。

    VERFAHREN ZUR BEREITSTELLUNG VON CHLORWASSERSTOFF FÜR CHEMISCHE UMSETZUNGEN
    5.
    发明公开
    VERFAHREN ZUR BEREITSTELLUNG VON CHLORWASSERSTOFF FÜR CHEMISCHE UMSETZUNGEN 审中-公开
    提供氯化氢用于化学改进的方法

    公开(公告)号：EP3313815A1

    公开(公告)日：2018-05-02

    申请号：EP16731940.9

    申请日：2016-06-27

    申请人： Covestro Deutschland AG

    发明人： BUSCH, Jan ,  ARRAS, Jürgen ,  STEFFENS, Christian

    IPC分类号： C07C263/10 ,  C01B7/07 ,  C07C265/14

    CPC分类号： C07C263/10 ,  B01D3/14 ,  B01D5/0003 ,  B01D5/006 ,  C01B7/04 ,  C01B7/07 ,  C01B7/0712 ,  C01B7/0737 ,  C01P2006/80 ,  C07C17/02 ,  C07C265/14

    摘要： The invention relates to an improved process for making available, for an intended downstream application (i.e. for a chemical reaction), the hydrogen chloride by-product that is produced during production of an isocyanate by phosgenation of the corresponding amine, where, by reducing the pressure of the crude product, a portion of the entire hydrogen chloride produced is obtained in gaseous form at a pressure that is higher than the pressure desired for the downstream application, and the remaining portion of the entire hydrogen chloride produced is separated, at a pressure lower than that desired for the intended downstream application, from the crude liquid phosgenation product that remains when the pressure is reduced, and is then compressed to a pressure which is higher than that desired for the downstream application, and where both resultant hydrogen chloride streams are purified, preferably together after they have been combined, in a manner that produces purified hydrogen chloride at a pressure higher than the pressure desired for the downstream application.

    VERFAHREN ZUR HERSTELLUNG VON POLYISOCYANATEN
    7.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON POLYISOCYANATEN 审中-公开
    生产多异氰酸酯的方法

    公开(公告)号：EP3313565A1

    公开(公告)日：2018-05-02

    申请号：EP16731942.5

    申请日：2016-06-27

    申请人： Covestro Deutschland AG

    发明人： ARRAS, Jürgen ,  BUSCH, Jan ,  STEFFENS, Christian ,  WASTIAN, Dietmar ,  KELLER-KILLEWALD, Manfred ,  CONZELMANN, Holger

    IPC分类号： B01J19/18 ,  C07C263/10

    CPC分类号： C07C263/10 ,  C07C265/14

    摘要： The present invention relates to a continuous process for preparing a polyisocyanate, in which a polyamine and phosgene are first converted predominantly to carbamoyl chloride and amine hydrochloride and only in minor proportions to polyisocyanate, and a portion of the carbamoyl chloride- and amine hydrochloride-containing reaction mixture thus obtained is recycled into the reaction with phosgene, wherein polyamine, phosgene and the carbamoyl chloride- and amine hydrochloride-containing reaction mixture are mixed intimately in a mixing unit. The portion of the carbamoyl chloride- and amine hydrochloride-containing reaction mixture which is not recycled into the phosgenation is worked up to give the polyisocyanate.

    PROCESS FOR THE PRODUCTION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES
    8.
    发明公开
    PROCESS FOR THE PRODUCTION OF DI- AND POLYAMINES OF THE DIPHENYLMETHANE SERIES 审中-公开
    生产二苯基甲烷系列的DI-和多胺的方法

    公开(公告)号：EP3263547A1

    公开(公告)日：2018-01-03

    申请号：EP17178643.7

    申请日：2017-06-29

    申请人： Covestro Deutschland AG

    发明人： ARRAS, Jürgen ,  KELLER, Tobias Cäsar ,  PÉREZ-RAMIREZ, Javier

    IPC分类号： C07C209/54 ,  C07C211/50

    CPC分类号： C07C209/78 ,  B01J21/04 ,  B01J21/08 ,  C07C209/54 ,  C07C211/50 ,  C08G12/08 ,  C08G73/0266

    摘要： The invention relates to a production process for di- and polyamines of the diphenylmethane series by the rearrangement of a condensation product of aniline and a methylene group-supplying agent preferably selected from the group consisting of aqueous formaldehyde solution, gaseous formaldehyde, para-formaldehyde, trioxane and mixtures thereof, wherein said condensation product is reacted in the presence of at least one silica-alumina catalyst, said catalyst having
    • a surface area as determined by the BET method carried out according to ASTM D3663 - 03 (2015) of from 200 m 2 /g to 520 m 2 /g, preferably of from 350 m 2 /g to 495 m 2 /g, particularly preferably of from 400 m 2 /g to 490 m 2 /g,
    • a molar ratio of silica / alumina on the catalyst surface of A,
    • an overall ( bulk ) molar ratio of silica / alumina of C , and
    • a quotient B = A / C ;
    said catalyst being characterised in that "low" A values (i.e. equal to or lower than 8.0) are combined with "high" B values (i.e. of from 1.50 to 3.00), and "high" A values (i.e. larger than 8.00, especially equal to or larger than 8.50) are combined with "low" B values (i.e. of from 0.15 to 1.40).

    摘要翻译： 本发明涉及通过苯胺和供应亚甲基的试剂的缩合产物重排生产二苯基甲烷系列的二胺和多胺的方法，所述产物优选选自甲醛水溶液，甲醛气体，多聚甲醛， 其中所述缩合产物在至少一种二氧化硅 - 氧化铝催化剂的存在下反应，所述催化剂具有： - 根据ASTM D3663-03（2015）进行的BET方法测定的表面积为200 m 2 / g至520m 2 / g，优选350m 2 / g至495m 2 / g，特别优选400m 2 / g至490m 2 / g，·二氧化硅/氧化铝在催化剂表面上的摩尔比A ，·C的二氧化硅/氧化铝的总体（本体）摩尔比，以及·商B = A / C; 所述催化剂的特征在于“低”A值（即等于或低于8.0）与“高”B值（即1.50-3.00）和“高”A值（即大于8.00，特别是 等于或大于8.50）与“低”B值（即0.15至1.40）相结合。