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    31.
    发明专利
    未知

    公开(公告)号：DE69706111T2

    公开(公告)日：2002-04-18

    申请号：DE69706111

    申请日：1997-10-06

    Applicant: UBE INDUSTRIES

    Inventor： HARADA KATSUMASA ,  SUGISE RYOJI ,  KASHIWAGI KOICHI ,  DOI TAKASHI ,  NIIDA SADAO ,  KURAFUJI TOSHIO

    IPC: C07C68/00 ,  C07C69/96

    Abstract: An improved process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation utilizes a reaction vessel composed of two or more reaction chambers which are connected in series. The process is composed of the steps of continuously introducing the diaryl oxalate and an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding into the first chamber and continuously recovering a reaction mixture mainly containing the diaryl carbonate from the last chamber under the condition that a mixture of the diaryl oxalate and the organic phosphorus compound is heated in the reaction chambers, while discharging carbon monoxide released from the mixture.

    Preparation of diaryl carbonate
    32.
    发明专利
    Preparation of diaryl carbonate 未知

    公开(公告)号：SG53094A1

    公开(公告)日：1998-09-28

    申请号：SG1997003665

    申请日：1997-10-04

    Applicant: UBE INDUSTRIES

    Inventor： HARADA KATSUMASA ,  SUGISE RYOJI ,  KASHIWAGI KOICHI K ,  DOI TAKASHI ,  NIIDA SADAO ,  KURAFUJI TOSHIO

    IPC: C07C68/00 ,  C07C69/96

    Abstract: An improved process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation utilizes a reaction vessel composed of two or more reaction chambers which are connected in series. The process is composed of the steps of continuously introducing the diaryl oxalate and an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding into the first chamber and continuously recovering a reaction mixture mainly containing the diaryl carbonate from the last chamber under the condition that a mixture of the diaryl oxalate and the organic phosphorus compound is heated in the reaction chambers, while discharging carbon monoxide released from the mixture.

    33.
    发明专利
    未知

    公开(公告)号：ID19380A

    公开(公告)日：1998-07-09

    申请号：ID973369

    申请日：1997-10-06

    Applicant: UBE INDUSTRIES

    Inventor： HARADA KATSUMASA ,  SUGISE RYOJI ,  KASHIWAGI KOICHI ,  DOI TAKASHI ,  NIIDA SADAO ,  KURAFUJI TOSHIO

    IPC: C07C68/00 ,  C08G64/20

    Abstract: An improved process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation utilizes a reaction vessel composed of two or more reaction chambers which are connected in series. The process is composed of the steps of continuously introducing the diaryl oxalate and an organic phosphorus compound having a trivalent or pentavalent phosphorus atom and at least one carbon-phosphorus bonding into the first chamber and continuously recovering a reaction mixture mainly containing the diaryl carbonate from the last chamber under the condition that a mixture of the diaryl oxalate and the organic phosphorus compound is heated in the reaction chambers, while discharging carbon monoxide released from the mixture.

    PROCESS FOR PREPARATION OF CYCLODODECANONE
    37.
    发明公开
    PROCESS FOR PREPARATION OF CYCLODODECANONE 有权
    用于生产环十二酮

    公开(公告)号：EP1433771A4

    公开(公告)日：2006-02-15

    申请号：EP02758826

    申请日：2002-08-09

    Applicant: UBE INDUSTRIES ,  EMS CHEMIE AG

    Inventor： SUGISE RYOJI ,  TANAKA SHUJI ,  DOI TAKASHI ,  NISHIO MASAYUKI ,  NIIDA SADAO ,  MATSUURA TSUNAO

    IPC: C07C45/58 ,  C07C45/57 ,  C07C49/413

    CPC classification number: C07C45/58 ,  C07C49/413

    Abstract: In the process for producing a cyclododecanone by iscmerizing an epoxycyclododecane-containing starting material in the presence of an isomerization reaction catalyst containing lithium bromide and/or lithium iodide, in order to perform the reaction with high efficiency (high reaction rate) and high selectivity and stably produce a high-purity cyclododecanone in industry while maintaining a high-level reaction rate, the epoxycyclododecane-containing starting material is produced by contacting an epoxycyclododecadiene with hydrogen in the presence of a hydrogen-reduction catalyst and has a content of the hydroxyl group-containing cyclododecane compounds contained in the epoxycyclododecane-containing starting material controlled to 5 mol% or less.

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