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    Preparation of diaryl carbonate
    1.
    发明授权
    Preparation of diaryl carbonate 失效
    碳酸二芳基酯的制备

    公开(公告)号：US5792883A

    公开(公告)日：1998-08-11

    申请号：US944251

    申请日：1997-10-06

    申请人： Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi ,  Sadao Niida ,  Toshio Kurafuji

    发明人： Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi ,  Sadao Niida ,  Toshio Kurafuji

    IPC分类号： C07C68/00

    CPC分类号： C07C68/00

    摘要： 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.

    摘要翻译： 通过脱羰由液相中草酸二芳基酯制备碳酸二芳基酯的改进方法利用由串联连接的两个或更多个反应室组成的反应容器。 该方法包括以下步骤：将草酸二芳基酯和具有三价或五价磷原子和至少一个碳 - 磷键合的有机磷化合物连续引入第一室中，连续地从主要含有碳酸二芳基酯的反应混合物中回收 在反应室中加热草酸二芳基酯和有机磷化合物的混合物同时排放从混合物中释出的一氧化碳的条件下，最后一个室。

    Process for producing a diaryl carbonate
    3.
    发明授权
    Process for producing a diaryl carbonate 失效
    制备碳酸二芳基酯的方法

    公开(公告)号：US5731453A

    公开(公告)日：1998-03-24

    申请号：US814089

    申请日：1997-03-10

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Hirofumi Ii ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Hirofumi Ii ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    IPC分类号： C07C67/02 ,  C07C67/03 ,  C07C68/00 ,  C07C69/36 ,  C07C69/96

    CPC分类号： C07C67/03 ,  C07C68/00 ,  Y02P20/127

    摘要： A diaryl carbonate with a high degree of purity is produced at a high yield by (A) subjecting (a) a diaryl oxalate and a phenol compound or (b) an alkylaryl oxalate to transesterification reaction in one or two stages in the presence of a catalyst to prepare a diaryl oxalate, while removing a by-product from the reaction system; (B) collecting the diaryl oxalate from the resultant reaction product mixture of the step (A); (C) subjecting the diaryl oxalate to a decarbonylation reaction, preferably in the presence of a phosphorous compound-containing catalyst, to convert the diaryl oxalate to a corresponding diaryl carbonate, while removing a reaction by-product comprising carbon monoxide from the reaction system; and (D) collecting the diaryl carbonate from the reaction product mixture of the step (C).

    摘要翻译： 通过（A）在（a）草酸二芳基酯和酚化合物或（b）草酸烷基芳基酯在一个或两个阶段中存在下进行酯交换反应，以高产率生产具有高纯度的碳酸二芳基酯 催化剂，以制备草酸二芳基酯，同时从反应体系中除去副产物; （B）从所得步骤（A）的反应产物混合物中收集草酸二芳基酯; （C）优选在含磷化合物的催化剂存在下使草酸二芳基酯进行脱羰反应，将草酸二芳基酯转化为相应的碳酸二芳基酯，同时从反应体系中除去包含一氧化碳的反应副产物; 和（D）从步骤（C）的反应产物混合物中收集碳酸二芳基酯。

    Process for preparing diaryl carbonate
    4.
    发明授权
    Process for preparing diaryl carbonate 失效
    制备碳酸二芳基酯的方法

    公开(公告)号：US5892089A

    公开(公告)日：1999-04-06

    申请号：US944231

    申请日：1997-10-06

    申请人： Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Yoichi Imbe ,  Takashi Doi ,  Keigo Nishihira ,  Shuji Tanaka ,  Hirofumi Ii

    发明人： Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Yoichi Imbe ,  Takashi Doi ,  Keigo Nishihira ,  Shuji Tanaka ,  Hirofumi Ii

    IPC分类号： C07C68/00

    CPC分类号： C07C68/00

    摘要： A process for preparing a diaryl carbonate from a diaryl oxalate in a liquid phase by decarbonylation is conducted by the steps of:1) performing a decarbonylation reaction of a diaryl oxalate in the presence of an organic phosphorus compound catalyst to give a reaction mixture of a diaryl carbonate and the organic phosphorus compound catalyst;2) recovering the diaryl carbonate from the reaction mixture; and3) performing a decarbonylation reaction of a diaryl oxalate in the presence of the reaction mixture from which the diaryl carbonate has been recovered and to which a halogen atom-containing compound is added, to give a reaction mixture of a diaryl carbonate and the organic phosphorus compound catalyst.

    摘要翻译： 通过脱羰由草酸二芳基酯在液相中制备碳酸二芳基酯的方法是通过以下步骤进行的：1）在有机磷化合物催化剂存在下进行草酸二芳基酯的脱羰基化反应，得到 碳酸二芳酯和有机磷化合物催化剂; 2）从反应混合物中回收碳酸二芳基酯; 和3）在已经回收了碳酸二芳基酯并且含有含卤原子的化合物的反应混合物存在下进行草酸二芳酯的脱羰基反应，得到碳酸二芳基酯和有机物的反应混合物 磷化合物催化剂。

    Process for producing a diaryl carnonate
    6.
    发明授权
    Process for producing a diaryl carnonate 失效
    生产碳酸二芳酯的方法

    公开(公告)号：US5811573A

    公开(公告)日：1998-09-22

    申请号：US988759

    申请日：1997-12-11

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Ii Hirofumi ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Yuki Nishida ,  Ii Hirofumi ,  Satoru Fujitsu ,  Katsumasa Harada ,  Ryoji Sugise ,  Koichi Kashiwagi ,  Takashi Doi

    IPC分类号： C07C67/02 ,  C07C67/03 ,  C07C68/00 ,  C07C69/36 ,  C07C69/96

    CPC分类号： C07C67/03 ,  C07C68/00 ,  Y02P20/127

    摘要： A diaryl carbonate with a high degree of purity is produced at a high yield by (A) subjecting (a) a diaryl oxalate and a phenol compound or (b) an alkylaryl oxalate to transesterification reaction in one or two stages in the presence of a catalyst to prepare a diaryl oxalate, while removing a by-product from the reaction system; (B) collecting the diaryl oxalate from the resultant reaction product mixture of the step (A); (C) subjecting the diaryl oxalate to a decarbonylation reaction, preferably in the presence of a phosphorous compound-containing catalyst, to convert the diaryl oxalate to a corresponding diaryl carbonate, while removing a reaction by-product comprising carbon monoxide from the reaction system; and (D) collecting the diaryl carbonate from the reaction product mixture of the step (C).

    摘要翻译： 通过（A）在（a）草酸二芳基酯和酚化合物或（b）草酸烷基芳基酯在一个或两个阶段中存在下进行酯交换反应，以高产率生产具有高纯度的碳酸二芳基酯 催化剂，以制备草酸二芳基酯，同时从反应体系中除去副产物; （B）从所得步骤（A）的反应产物混合物中收集草酸二芳基酯; （C）优选在含磷化合物的催化剂存在下使草酸二芳基酯进行脱羰反应，将草酸二芳基酯转化为相应的碳酸二芳基酯，同时从反应体系中除去包含一氧化碳的反应副产物; 和（D）从步骤（C）的反应产物混合物中收集碳酸二芳基酯。

    Process for preparation of cyclododecanone
    10.
    发明授权
    Process for preparation of cyclododecanone 失效
    环十二酮的制备方法

    公开(公告)号：US06861563B2

    公开(公告)日：2005-03-01

    申请号：US10486735

    申请日：2002-08-09

    申请人： Ryoji Sugise ,  Shuji Tanaka ,  Takashi Doi ,  Masayuki Nishio ,  Sadao Niida ,  Tsunao Matsuura

    发明人： Ryoji Sugise ,  Shuji Tanaka ,  Takashi Doi ,  Masayuki Nishio ,  Sadao Niida ,  Tsunao Matsuura

    IPC分类号： C07C45/58 ,  C07C45/67

    CPC分类号： C07C45/58 ,  C07C49/413

    摘要： In the process for producing a cyclododecanone by isomerizing 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.

    摘要翻译： 在通过在含有溴化锂和/或碘化锂的异构化反应催化剂的存在下异构化含环氧环十二烷的原料来制备环十二酮的方法中，为了以高效率（高反应速率）和高选择性进行反应，以及 在保持高反应速率的同时稳定地生产高纯度环十二烷酮，含环氧环十二烷的原料是通过在氢还原催化剂存在下使环氧环十二烷与氢接触而制得的， 含有环氧十二烷的原料中含有的环十二烷化合物控制在5摩尔％以下。