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    Process for preparing diaryl carbonate
    2.
    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。