中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

40 records (took 0.036 seconds)

    METHOD FOR PRODUCING DIAMINODIPHENYL ALKANES
    2.
    发明申请
    METHOD FOR PRODUCING DIAMINODIPHENYL ALKANES 审中-公开
    用于生产diaminodiphenylalkanes

    公开(公告)号：WO2009132883A3

    公开(公告)日：2010-01-21

    申请号：PCT/EP2009052768

    申请日：2009-03-10

    Applicant: EVONIK DEGUSSA GMBH ,  KRECZINSKI MANFRED ,  GRUND GERDA

    Inventor： KRECZINSKI MANFRED ,  GRUND GERDA

    IPC: C07C209/78 ,  C07C211/50

    CPC classification number: C07C209/78 ,  C07C211/50

    Abstract: The invention relates to a method for producing diaminodiphenyl alkanes, wherein an aromatic amine, which can be substituted or unsubstituted, is reacted with a C1-C3 aldehyde in the presence of a heterogeneous catalyst, said catalyst being a mesoporous acidic ion exchanger based on a divinylbenzene/styrene copolymer and the catalyst having acid centers in a concentration of 2 to 6 eq/kg measured according to DIN 54 403 and the average pore diameter of the catalyst particles being 10 to 32 nm measured according to ASTM D 4222, and the content of polynuclear compounds in the reaction mixture being > 10 and = 15% by weight.

    Abstract translation: 本发明涉及一种用于制备diaminodiphenylalkanes其特征在于，可以是取代的或未取代的芳族胺，具有C1-C3醛在非均相催化剂的存在下反应，其中所述催化剂是基于二乙烯基苯/苯乙烯的中孔酸性离子交换剂的方法 在共聚物和催化剂已经测量酸位点根据DIN 54 403在2的浓度为6当量/ kg和催化剂颗粒的平均孔径是根据ASTM D 4222测量的为10〜32纳米，且其中多核化合物在所得反应混合物中的含量> 10和= 15重量％是。

    METHOD FOR PRODUCING DIAMINODIPHENYL ALKANES
    3.
    发明申请
    METHOD FOR PRODUCING DIAMINODIPHENYL ALKANES 审中-公开
    生产二氨基二苯基烷烃的方法

    公开(公告)号：WO2009132906A3

    公开(公告)日：2009-12-30

    申请号：PCT/EP2009053583

    申请日：2009-03-26

    Applicant: EVONIK DEGUSSA GMBH ,  GRUND GERDA ,  KRECZINSKI MANFRED

    Inventor： GRUND GERDA ,  KRECZINSKI MANFRED

    IPC: C07C209/78 ,  C07C211/50

    CPC classification number: C07C209/78 ,  C07C211/50

    Abstract: The invention relates to a method for producing diaminodiphenyl alkanes, wherein an aromatic amine, which can be substituted or unsubstituted, is reacted with a C1-C3 aldehyde in the presence of a heterogeneous catalyst, said catalyst being a mesoporous acidic ion exchanger based on a divinylbenzene/styrene copolymer and the catalyst having acid centers in a concentration of 4 to 6 eq/kg as measured according to DIN 54 403 and the average pore diameter of the catalyst particles being 10 to 32 nm as measured according to ASTM D 4222 10, and the content of polynuclear compounds in the reaction mixture being = 10% by weight.

    Abstract translation: 本发明涉及一种用于制备diaminodiphenylalkanes其特征在于，可以是取代的或未取代的芳族胺，具有C1-C3醛在非均相催化剂的存在下反应，其中所述催化剂是基于二乙烯基苯/苯乙烯的中孔酸性离子交换剂的方法 是共聚物和以4:1的浓度下，按照DIN 54 403具有测量为根据ASTM d测定的催化剂的酸性部位和催化剂颗粒的平均孔直径为6当量/ kg的4222为10〜32纳米，且其中多核化合物在所得反应混合物中的含量= 10重量％是。

    Procedimiento para la preparación de isoforona
    6.
    发明专利
    Procedimiento para la preparación de isoforona 未知

    公开(公告)号：ES2669845T3

    公开(公告)日：2018-05-29

    申请号：ES11788104

    申请日：2011-11-17

    Applicant: EVONIK DEGUSSA GMBH

    Inventor： ORSCHEL MATTHIAS ,  JANSEN ROBERT ,  MAIER MARTIN ,  GRUND GERDA ,  SCHWARZ MARKUS ,  NITZ JÖRG-JOACHIM ,  HENGSTERMANN AXEL

    IPC: C07C45/74 ,  C07C45/82 ,  C07C45/85 ,  C07C49/603

    Abstract: Procedimiento para la preparación de isoforona mediante condensaciones de aldol catalizadas con acetona como educto, empleándose un catalizador homogéneo, tratamiento del producto de reacción, hidrólisis de la corriente valiosa y separación en una fracción orgánica y una fracción acuosa, obtención de isoforona a partir de la fracción orgánica, tratamiento destilativo de la fracción acuosa y transmisión de los vapores desprendidos de la parte superior del sistema de aparatos del tratamiento destilativo al sistema de aparatos de la hidrólisis, sometiendo el agua procedente del fondo del tratamiento destilativo de la fracción acuosa a una vaporización instantánea y retornando el agua purificada resultante al proceso para la preparación de isoforona.

Patent Agency Ranking