Chemical processing of nanoparticles
    38.
    发明授权
    Chemical processing of nanoparticles 有权
    纳米粒子的化学处理

    公开(公告)号:US07816297B2

    公开(公告)日:2010-10-19

    申请号:US12201990

    申请日:2008-08-29

    申请人: Kwangyeol Lee

    发明人: Kwangyeol Lee

    IPC分类号: B01J23/38

    摘要: Disclosed is a method of processing a polycrystalline nanoparticle. The method includes exposing a polycrystalline nanoparticle that includes at least two metal oxide crystallites bonded to each other to a chemical composition that includes a catalyst in order to at least partially separate the at least two metal oxide crystallites of the polycrystalline nanoparticle at an interface thereof.

    摘要翻译: 公开了一种处理多晶纳米颗粒的方法。 该方法包括使包含至少两个彼此键合的金属氧化物晶体的多晶纳米颗粒暴露于包括催化剂的化学组合物,以便在其界面处至少部分地分离多晶纳米颗粒的至少两种金属氧化物微晶。

    Catalyst composition for preparing hydroxylamine
    39.
    发明授权
    Catalyst composition for preparing hydroxylamine 有权
    用于制备羟胺的催化剂组合物

    公开(公告)号:US07622420B1

    公开(公告)日:2009-11-24

    申请号:US12454962

    申请日:2009-05-27

    摘要: This invention provides a catalyst composition for preparing hydroxylamine, which comprises palladium, a platinum compound, a germanium compound and a carrier, wherein a halogen concentration of the composition is no more than 10 ppm. The catalyst composition is prevented from poisoning by halogens, and therefore the catalyst composition has high selectivity and catalytic activity. Further, the weight ratio of palladium and platinum in the catalyst composition ranges from 100:1 to 1000:1, such that the catalyst composition can be used to solve the commonly observed problem, i.e., decreased selectivity due to the excessive amount of platinum.

    摘要翻译: 本发明提供一种用于制备羟胺的催化剂组合物,其包含钯,铂化合物,锗化合物和载体,其中组合物的卤素浓度不超过10ppm。 催化剂组合物不会被卤素中毒,因此催化剂组合物具有高选择性和催化活性。 此外,催化剂组合物中钯和铂的重量比为100:1-1000:1,使得催化剂组合物可用于解决普遍观察到的问题,即由于铂的过量引起的选择性降低。

    Catalyst support and method of producing the same
    40.
    发明授权
    Catalyst support and method of producing the same 有权
    催化剂载体及其制备方法

    公开(公告)号:US07618919B2

    公开(公告)日:2009-11-17

    申请号:US11341483

    申请日:2006-01-30

    摘要: A method of producing a catalyst support comprising a substrate, and coating formed on the surface of the substrate and including powder of a first metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, wherein the coating is obtained by heat treating the substrate after applied with a coating composition obtained by mixing the first metal oxide powder together with a fluid raw material composition containing raw material of a second metal oxide of at least one member selected from the group consisting of alumina, zirconia, titania, iron oxides, oxides of rare earth elements, alkali metal oxides and alkali earth metal oxides, at a shear rate of 1000 sec−1 or higher.

    摘要翻译: 一种制备催化剂载体的方法,其包含基材和形成在基材表面上的涂层,包括选自氧化铝,氧化锆,二氧化钛,氧化铁,氧化铁中的至少一种的第一金属氧化物的粉末 稀土元素,碱金属氧化物和碱土金属氧化物,其中通过在将第一金属氧化物粉末与含有第二金属氧化物原料的流体原料组合物混合而获得的涂料组合物 选自氧化铝,氧化锆,二氧化钛,氧化铁,稀土元素的氧化物,碱金属氧化物和碱土金属氧化物中的至少一种的金属氧化物,其剪切速率为1000秒-1以上。