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    Process for the continuous production of aryl carbonates
    2.
    发明授权
    Process for the continuous production of aryl carbonates 失效
    连续生产碳酸芳基酯的方法

    公开(公告)号：US5463102A

    公开(公告)日：1995-10-31

    申请号：US182867

    申请日：1994-01-18

    申请人： Norbert Schon ,  Johann Rechner ,  Paul Wagner ,  Hans-Josef Buysch ,  Hans-Erich Gasche ,  Ricarda Leiberich

    发明人： Norbert Schon ,  Johann Rechner ,  Paul Wagner ,  Hans-Josef Buysch ,  Hans-Erich Gasche ,  Ricarda Leiberich

    IPC分类号： C07B61/00 ,  C07C68/06 ,  C07C68/08 ,  C07C69/96

    CPC分类号： C07C68/06

    摘要： Organic carbonates containing at least one aromatic ester group can be obtained in a continuous manner from carbonates containing at least one aliphatic ester group and a phenolic compound in the presence of a transesterification catalyst known per se by carrying out the reaction in at least two stirred containers connected one behind the other in such a way that, in each case, the phenolic compound is metered in liquid form into the first stirred container and the carbonate containing at least one aliphatic ester group is metered in liquid form into one or more of the stirred containers. The carbonate containing at least one aromatic ester group is removed in liquid form from the last stirred container. Volatile reaction products, for example alcohol which has been cleaved out or a dialkyl carbonate are removed in gaseous form from one or more stirred containers.

    摘要翻译： 含有至少一个芳族酯基的有机碳酸酯可以在本体已知的酯交换催化剂存在下，通过在至少两个搅拌容器中进行反应，以含有至少一种脂肪族酯基和酚类化合物的碳酸酯连续获得 在每种情况下将酚类化合物以液体形式计量到第一搅拌容器中，并且将含有至少一种脂族酯基的碳酸酯以液体形式计量成一个或多个搅拌的 容器 含有至少一个芳族酯基的碳酸酯以液体形式从最后搅拌的容器中除去。 挥发性反应产物，例如已经被裂解的醇或碳酸二烷基酯从一种或多种搅拌容器中以气态形式除去。

    Process for preparing aryl carbonates
    5.
    发明授权
    Process for preparing aryl carbonates 失效
    制备芳基碳酸酯的方法

    公开(公告)号：US5473094A

    公开(公告)日：1995-12-05

    申请号：US271488

    申请日：1994-07-07

    申请人： Pieter Ooms ,  Norbert Schon ,  Hans-Josef Buysch

    发明人： Pieter Ooms ,  Norbert Schon ,  Hans-Josef Buysch

    IPC分类号： B01J21/04 ,  C07B61/00 ,  C07C68/02 ,  C07C69/96

    CPC分类号： C07C68/02

    摘要： Carbonates with aromatic ester groups may be prepared by reacting aromatic monohydroxy compounds with phosgene or with chloroformates of aromatic monohydroxy compounds, wherein reaction takes place at a temperature in the range 50.degree. to 350.degree. C. in the presence of aluminum oxides as heterogeneous catalysts.

    摘要翻译： 具有芳族酯基的碳酸酯可以通过使芳族单羟基化合物与光气或芳族单羟基化合物的氯甲酸酯反应制备，其中在作为多相催化剂的氧化铝存在下，在50℃至350℃的温度下进行反应。

    Process for the preparation of diaryl carbonates
    10.
    发明授权
    Process for the preparation of diaryl carbonates 失效
    制备碳酸二芳基酯的方法

    公开(公告)号：US5344954A

    公开(公告)日：1994-09-06

    申请号：US103936

    申请日：1993-08-06

    申请人： Norbert Schon ,  Hans-Josef Buysch ,  Paul Wagner ,  Reinhard Langer

    发明人： Norbert Schon ,  Hans-Josef Buysch ,  Paul Wagner ,  Reinhard Langer

    IPC分类号： C07B61/00 ,  C07C68/06 ,  C07C69/96

    CPC分类号： C07C68/06

    摘要： Diaryl carbonates are prepared from dialkyl carbonates and phenolic compounds by transesterification in the presence of a transesterification catalyst at 60.degree.-320.degree. C. in an apparatus composed of two columns in a continuous procedure. In the first column, the starting materials form essentially the associated alkyl aryl carbonate, from which, in the second column, the diaryl carbonate is produced by further transesterification and disproportionation.

    摘要翻译： 碳酸二芳基酯由碳酸二烷基酯和酚类化合物通过在酯交换催化剂存在下，在60-320℃下在连续方法中由两列组成的装置中制备。 在第一列中，起始材料基本上形成缔合的碳酸烷基芳基酯，在第二列中，通过进一步的酯交换和歧化产生碳酸二芳基酯。