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    METHOD FOR CONTINUOUS SYNTHESIS OF METAL OXIDE POWDERS
    3.
    发明申请
    METHOD FOR CONTINUOUS SYNTHESIS OF METAL OXIDE POWDERS 有权
    用于连续合成金属氧化物粉末的方法

    公开(公告)号：US20140363365A1

    公开(公告)日：2014-12-11

    申请号：US14296643

    申请日：2014-06-05

    申请人： David A. Berry ,  Daniel J. Haynes ,  Dushyant Shekhawat ,  Mark W. Smith

    发明人： David A. Berry ,  Daniel J. Haynes ,  Dushyant Shekhawat ,  Mark W. Smith

    IPC分类号： C01B13/32

    CPC分类号： C01B13/34 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/62

    摘要： A method for the rapid and continuous production of crystalline mixed-metal oxides from a precursor solution comprised of a polymerizing agent, chelated metal ions, and a solvent. The method discharges solution droplets of less than 500 μm diameter using an atomizing or spray-type process into a reactor having multiple temperature zones. Rapid evaporation occurs in a first zone, followed by mixed-metal organic foam formation in a second zone, followed by amorphous and partially crystalline oxide precursor formation in a third zone, followed by formation of the substantially crystalline mixed-metal oxide in a fourth zone. The method operates in a continuous rather than batch manner and the use of small droplets as the starting material for the temperature-based process allows relatively high temperature processing. In a particular embodiment, the first zone operates at 100-300° C., the second zone operates at 300-700° C., and the third operates at 700-1000° C., and fourth zone operates at at least 700° C. The resulting crystalline mixed-metal oxides display a high degree of crystallinity and sphericity with typical diameters on the order of 50 μm or less.

    摘要翻译： 一种从由聚合剂，螯合金属离子和溶剂组成的前体溶液中快速和连续地生产结晶混合金属氧化物的方法。 该方法使用雾化或喷雾式方法将小于500μm直径的溶液液滴放入具有多个温度区的反应器中。 在第一区域中发生快速蒸发，随后在第二区域中形成混合金属有机泡沫，随后在第三区域中形成无定形和部分结晶的氧化物前体，随后在第四区域中形成基本上结晶的混合金属氧化物 。 该方法以连续而不是间歇的方式操作，并且使用小液滴作为基于温度的方法的起始材料允许相对较高的温度处理。 在特定实施例中，第一区域在100-300℃下操作，第二区域工作在300-700℃，第三区域在700-1000℃下操作，第四区域在至少700° 所得到的结晶混合金属氧化物显示出高度的结晶度和球形度，典型直径为50μm以下。

    Method for continuous synthesis of metal oxide powders
    4.
    发明授权
    Method for continuous synthesis of metal oxide powders 有权
    连续合成金属氧化物粉末的方法

    公开(公告)号：US09126833B2

    公开(公告)日：2015-09-08

    申请号：US14296643

    申请日：2014-06-05

    申请人： David A. Berry ,  Daniel J. Haynes ,  Dushyant Shekhawat ,  Mark W. Smith

    发明人： David A. Berry ,  Daniel J. Haynes ,  Dushyant Shekhawat ,  Mark W. Smith

    IPC分类号： C01B13/00 ,  C01B13/34

    CPC分类号： C01B13/34 ,  C01P2004/03 ,  C01P2004/32 ,  C01P2004/62

    摘要： A method for the rapid and continuous production of crystalline mixed-metal oxides from a precursor solution comprised of a polymerizing agent, chelated metal ions, and a solvent. The method discharges solution droplets of less than 500 μm diameter using an atomizing or spray-type process into a reactor having multiple temperature zones. Rapid evaporation occurs in a first zone, followed by mixed-metal organic foam formation in a second zone, followed by amorphous and partially crystalline oxide precursor formation in a third zone, followed by formation of the substantially crystalline mixed-metal oxide in a fourth zone. The method operates in a continuous rather than batch manner and the use of small droplets as the starting material for the temperature-based process allows relatively high temperature processing. In a particular embodiment, the first zone operates at 100-300° C., the second zone operates at 300-700° C., and the third operates at 700-1000° C., and fourth zone operates at at least 700° C. The resulting crystalline mixed-metal oxides display a high degree of crystallinity and sphericity with typical diameters on the order of 50 μm or less.

    摘要翻译： 一种从由聚合剂，螯合金属离子和溶剂组成的前体溶液中快速和连续地生产结晶混合金属氧化物的方法。 该方法使用雾化或喷雾式方法将小于500μm直径的溶液液滴放入具有多个温度区的反应器中。 在第一区域中发生快速蒸发，随后在第二区域中形成混合金属有机泡沫，随后在第三区域中形成无定形和部分结晶的氧化物前体，随后在第四区域中形成基本上结晶的混合金属氧化物 。 该方法以连续而不是间歇的方式操作，并且使用小液滴作为基于温度的方法的起始材料允许相对较高的温度处理。 在特定实施例中，第一区域在100-300℃下操作，第二区域工作在300-700℃，第三区域在700-1000℃下操作，第四区域在至少700° 所得到的结晶混合金属氧化物显示出高度的结晶度和球形度，典型直径为50μm以下。