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    Method for making polycarbonate
    12.
    发明授权
    Method for making polycarbonate 有权
    制作聚碳酸酯的方法

    公开(公告)号：US08263729B2

    公开(公告)日：2012-09-11

    申请号：US12974197

    申请日：2010-12-21

    申请人： Alfredo Lopez Carretero ,  David Domingo Fuster ,  Gerardo Hidalgo Llinas ,  Ignacio Vic Fernandez ,  Miguel Angel Salomon Cheliz

    发明人： Alfredo Lopez Carretero ,  David Domingo Fuster ,  Gerardo Hidalgo Llinas ,  Ignacio Vic Fernandez ,  Miguel Angel Salomon Cheliz

    IPC分类号： C08G64/00 ,  C08G63/02

    CPC分类号： C08G64/307

    摘要： A method of making polycarbonate comprises polymerizing, in a melt polymerization reaction, an aromatic dihydroxy compound and a diaryl carbonate in a presence of a polymerization catalyst and producing a by-product vapor stream comprising the dihydroxy compound, the diaryl carbonate and a diaryl carbonate by-product, adding a low vapor pressure compound to the by-product vapor stream to produce a modified by-product vapor stream, introducing the modified by-product vapor stream to a separation unit, removing the volatile diaryl carbonate by-product from the modified by-product vapor stream in the separation unit to form a treated by-product stream and returning the treated by-product stream to the polymerization reaction. Alternatively, the low vapor pressure compound can be added directly to the separation unit.

    摘要翻译： 一种制备聚碳酸酯的方法包括在熔融聚合反应中，在聚合催化剂存在下聚合芳族二羟基化合物和碳酸二芳基酯，并产生包含二羟基化合物，碳酸二芳基酯和碳酸二芳基酯的副产物蒸气流 产物，向副产物蒸汽流中加入低蒸汽压化合物以产生改性副产物蒸气流，将改性副产物蒸汽流引入分离单元，从经修饰的蒸汽流中除去挥发性碳酸二芳酯副产物 在分离单元中产生副产物蒸汽流以形成经处理的副产物流并将处理的副产物流返回到聚合反应中。 或者，低蒸气压化合物可以直接添加到分离单元。

    Process for manufacturing dimethyl carbonate
    13.
    发明授权
    Process for manufacturing dimethyl carbonate 有权
    碳酸二甲酯的制造方法

    公开(公告)号：US07803961B2

    公开(公告)日：2010-09-28

    申请号：US12032385

    申请日：2008-02-15

    申请人： Ignacio Vic Fernandez

    发明人： Ignacio Vic Fernandez

    IPC分类号： C07C69/96

    CPC分类号： C07C68/06 ,  C07C68/005 ,  C07C69/96

    摘要： A method of forming a dialkyl carbonate stream, includes obtaining a byproduct stream from a diaryl carbonate formation reaction that has alkanol, residual dialkyl carbonate, and residual aromatic compound. This byproduct stream is introduced to a distillation column to produce an alkanol tops stream and a first dialkyl carbonate bottoms stream. The alkanol tops stream is reacted with oxygen, carbon monoxide, and catalyst to form a second dialkyl carbonate stream that is introduced to the distillation column. The alkanol tops stream from the column contains alkanol, dialkyl carbonate, and less than 20 ppm aromatic compound. The first dialkyl carbonate bottoms stream from the column contains dialkyl carbonate, water, aromatic compound, and less than 2,000 ppm alkanol and is introduced to a water separation device to produce a product dialkyl carbonate stream and a water stream.

    摘要翻译： 一种形成碳酸二烷基酯流的方法，包括从具有链烷醇，残留的碳酸二烷基酯和残留的芳族化合物的碳酸二芳基酯形成反应获得副产物流。 将该副产物流引入蒸馏塔以产生链烷醇顶部物流和第一碳酸二烷基碳酸酯底部物流。 将链烷醇顶部物流与氧气，一氧化碳和催化剂反应以形成引入蒸馏塔的第二碳酸二烷基酯流。 来自该柱的烷醇顶部物流包含链烷醇，碳酸二烷基酯和少于20ppm的芳族化合物。 来自塔的第一个碳酸二烷基碳酸酯底部料流含有碳酸二烷基酯，水，芳香族化合物和小于2000ppm链烷醇，并被引入到水分离装置中以产生碳酸二烷基酯料流和水流。

    Process for manufacturing dimethyl carbonate
    14.
    发明授权
    Process for manufacturing dimethyl carbonate 有权
    碳酸二甲酯的制造方法

    公开(公告)号：US07799940B2

    公开(公告)日：2010-09-21

    申请号：US12032149

    申请日：2008-02-15

    申请人： Ignacio Vic Fernandez ,  Benoit Fillion ,  Vutukuru Murthy ,  Vinod Sankaran Nair ,  Mario Perez Collado

    发明人： Ignacio Vic Fernandez ,  Benoit Fillion ,  Vutukuru Murthy ,  Vinod Sankaran Nair ,  Mario Perez Collado

    IPC分类号： C07C69/96

    CPC分类号： C07C68/005 ,  C07C69/96

    摘要： The present invention provides methods of forming dialkyl carbonate wherein catalyst buildup in the reaction equipment, the separation equipment, and transfer lines there between is reduced and even eliminated. In one embodiment, the method includes introducing alkanol, carbon monoxide, oxygen, and a catalyst to a reactor having a gaseous head space and a liquid body space. The reactor is operated under conditions to form dialkyl carbonate and water. A product stream containing dialkyl carbonate, water, and residual reactants is removed from the head space of the reactor and introduced to a cyclone with a flushing stream. A liquid bottom stream is captured from the cyclone and introduced to the reactor. The gaseous top stream contains product dialkyl carbonate.

    摘要翻译： 本发明提供形成碳酸二烷基酯的方法，其中反应设备中的催化剂积聚，分离设备和其间的输送管线减少甚至消除。 在一个实施方案中，该方法包括将链烷醇，一氧化碳，氧和催化剂引入到具有气体顶部空间和液体体空间的反应器中。 反应器在形成碳酸二烷基酯和水的条件下操作。 从反应器的顶部空间除去含有碳酸二烷基酯，水和残余反应物的产物流，并将其引入具有冲洗流的旋风分离器。 从旋风分离器捕获液体底部流并将其引入反应器。 气态顶部流含有碳酸二烷基酯。

    Process for Manufacturing Dimethyl Carbonate
    16.
    发明申请
    Process for Manufacturing Dimethyl Carbonate 有权
    制造碳酸二甲酯的方法

    公开(公告)号：US20080200713A1

    公开(公告)日：2008-08-21

    申请号：US12032149

    申请日：2008-02-15

    申请人： Ignacio Vic Fernandez ,  Benoit Fillion ,  Vutukuru Murthy ,  Vinod Sankaran Nair ,  Mario Perez Collado

    发明人： Ignacio Vic Fernandez ,  Benoit Fillion ,  Vutukuru Murthy ,  Vinod Sankaran Nair ,  Mario Perez Collado

    IPC分类号： C07C69/96

    CPC分类号： C07C68/005 ,  C07C69/96

    摘要： The present invention provides methods of forming dialkyl carbonate wherein catalyst buildup in the reaction equipment, the separation equipment, and transfer lines there between is reduced and even eliminated. In one embodiment, the method includes introducing alkanol, carbon monoxide, oxygen, and a catalyst to a reactor having a gaseous head space and a liquid body space. The reactor is operated under conditions to form dialkyl carbonate and water. A product stream containing dialkyl carbonate, water, and residual reactants is removed from the head space of the reactor and introduced to a cyclone with a flushing stream. A liquid bottom stream is captured from the cyclone and introduced to the reactor. The gaseous top stream contains product dialkyl carbonate.

    摘要翻译： 本发明提供形成碳酸二烷基酯的方法，其中反应设备中的催化剂积聚，分离设备和其间的输送管线减少甚至消除。 在一个实施方案中，该方法包括将链烷醇，一氧化碳，氧和催化剂引入到具有气体顶部空间和液体体空间的反应器中。 反应器在形成碳酸二烷基酯和水的条件下操作。 从反应器的顶部空间除去含有碳酸二烷基酯，水和残余反应物的产物流，并将其引入具有冲洗流的旋风分离器。 从旋风分离器捕获液体底部流并将其引入反应器。 气态顶部流含有碳酸二烷基酯。

    Process for Manufacturing Dimethyl Carbonate
    20.
    发明申请
    Process for Manufacturing Dimethyl Carbonate 有权
    制造碳酸二甲酯的方法

    公开(公告)号：US20080200714A1

    公开(公告)日：2008-08-21

    申请号：US12032385

    申请日：2008-02-15

    申请人： Ignacio Vic Fernandez

    发明人： Ignacio Vic Fernandez

    IPC分类号： C07C69/96

    CPC分类号： C07C68/06 ,  C07C68/005 ,  C07C69/96

    摘要： A method of forming a dialkyl carbonate stream, includes obtaining a byproduct stream from a diaryl carbonate formation reaction that has alkanol, residual dialkyl carbonate, and residual aromatic compound. This byproduct stream is introduced to a distillation column to produce an alkanol tops stream and a first dialkyl carbonate bottoms stream. The alkanol tops stream is reacted with oxygen, carbon monoxide, and catalyst to form a second dialkyl carbonate stream that is introduced to the distillation column. The alkanol tops stream from the column contains alkanol, dialkyl carbonate, and less than 20 ppm aromatic compound. The first dialkyl carbonate bottoms stream from the column contains dialkyl carbonate, water, aromatic compound, and less than 2,000 ppm alkanol and is introduced to a water separation device to produce a product dialkyl carbonate stream and a water stream.

    摘要翻译： 一种形成碳酸二烷基酯流的方法，包括从具有链烷醇，残留的碳酸二烷基酯和残留的芳族化合物的碳酸二芳基酯形成反应获得副产物流。 将该副产物流引入蒸馏塔以产生链烷醇顶部物流和第一碳酸二烷基碳酸酯底部物流。 将链烷醇顶部物流与氧气，一氧化碳和催化剂反应以形成引入蒸馏塔的第二碳酸二烷基酯流。 来自该柱的烷醇顶部物流包含链烷醇，碳酸二烷基酯和少于20ppm的芳族化合物。 来自塔的第一个碳酸二烷基碳酸酯底部料流含有碳酸二烷基酯，水，芳香族化合物和小于2000ppm链烷醇，并被引入到水分离装置中以产生碳酸二烷基酯料流和水流。