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    Process for producing a diaryl carbonate
    1.
    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 producing a diaryl carnonate
    2.
    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 preparing diaryl carbonate
    3.
    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 polycarbonate
    6.
    发明授权
    Process for producing a polycarbonate 失效
    聚碳酸酯的制造方法

    公开(公告)号：US5922827A

    公开(公告)日：1999-07-13

    申请号：US936666

    申请日：1997-09-24

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise ,  Akinori Shiotani ,  Katsutoshi Washio

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise ,  Akinori Shiotani ,  Katsutoshi Washio

    IPC分类号： C08G64/30 ,  C08G64/00

    CPC分类号： C08G64/307

    摘要： A diaryl carbonate is produced by decarbonylating a diaryl oxalate, which can be prepared by transesterification of a dialkyl oxalate with a hydroxyaryl compound, in the presence of a catalyst, while removing the resultant carbon monoxide as a by-product, and then optionally refined by an evaporation and/or distillation, and then the resultant diaryl carbonate is condensation-polymerized with a polyhydroxyl compound, while recovering a resultant hydroxyaryl compound from the reaction system, to produce a polycarbonate.

    摘要翻译： 碳酸二芳基酯是通过将草酸二芳基酯脱碳化而制得的，该草酸二芳基酯可以在催化剂存在下通过草酸二烷基酯与羟基芳基化合物的酯交换制备，同时除去作为副产物的所得一氧化碳，然后任选地通过 蒸发和/或蒸馏，然后将所得碳酸二芳基酯与多羟基化合物缩聚，同时从反应体系中回收得到的羟基芳基化合物，以制备聚碳酸酯。

    Process for producing diaryl carbonate
    7.
    发明授权
    Process for producing diaryl carbonate 失效
    生产碳酸二芳酯的方法

    公开(公告)号：US5834615A

    公开(公告)日：1998-11-10

    申请号：US936513

    申请日：1997-09-24

    申请人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise

    发明人： Keigo Nishihira ,  Shuji Tanaka ,  Katsumasa Harada ,  Ryoji Sugise

    IPC分类号： C07C68/00

    CPC分类号： C07C68/00

    摘要： A high purity diaryl carbonate is produced with a high efficiency by reacting carbon monoxide with an alkyl nitrite and/or an alkyl alcohol; reacting the resultant dialkyl oxalate with a hydroxyaryl compound, for example, phenol; decarbonylating the resultant diaryl oxalate to produce a diaryl carbonate and carbon monoxide; and collecting the diaryl carbonate from the decarbonylation reaction product mixture, the carbon monoxide produced in the decabonylation step being optionally reused for the production of the dialkyl oxalate.

    摘要翻译： 通过使一氧化碳与亚硝酸烷基酯和/或烷基醇反应，高效率地生产高纯度碳酸二芳基酯; 使得到的草酸二烷基酯与羟基芳基化合物例如苯酚反应; 将所得的草酸二芳酯脱碳酸化以产生碳酸二芳酯和一氧化碳; 并从脱羰基反应产物混合物中收集碳酸二芳基酯，在癸二酰化步骤中产生的一氧化碳任选地再次用于生产草酸二烷基酯。

    Preparation of diaryl carbonate
    8.
    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。