Oxidation catalysts
    5.
    发明授权
    Oxidation catalysts 有权
    氧化催化剂

    公开(公告)号:US06833125B2

    公开(公告)日:2004-12-21

    申请号:US10730448

    申请日:2003-12-08

    IPC分类号: B01J800

    摘要: Oxidation catalysts for used in the full oxidation to CO2 and H2O of volatile organic compounds, such as hydrocarbons, comprising mixed oxides of copper, manganese and one or more rare-earth metals, wherein the metals can assume multiple valency states, having a percentage composition by weight, expressed as CuO, MnO and rare-earth oxides, in which the metal has the minimum value of 8-50%, 10-75% and 2-15%, respectively. The oxides are supported on inert porous inorganic oxides.

    摘要翻译: 用于完全氧化成CO 2和H 2 O的氧化催化剂,其包括铜,锰和一种或多种稀土金属的混合氧化物的挥发性有机化合物(例如烃),其中金属可以具有多种价态,其组成百分比 ,表示为CuO,MnO和稀土氧化物,其中金属的最小值分别为8-50%,10-75%和2-15%。 氧化物负载在惰性多孔无机氧化物上。

    Method for preparing iron oxides
    6.
    发明授权
    Method for preparing iron oxides 有权
    铁氧化物的制备方法

    公开(公告)号:US06790274B2

    公开(公告)日:2004-09-14

    申请号:US10386798

    申请日:2003-03-12

    IPC分类号: C09C122

    摘要: Highly pure iron oxides are prepared by reaction of metallic iron, in the form of microspheroidal particles or of scraps or cuttings, with an agitated aqueous solution of a mono- or polycarboxylic acid with a pKa of 0.5 to 6 relative to the first carboxyl and capable of decomposing, by heating in air at 200 to 350° C., to carbon dioxide and water, using 0.03 to 1.5 moles of acid per g-atoms of iron, a water/iron weight ration of 1 to 20, and by oxidation of the ferrous carboxilate to ferric salt, with an agent selected from oxygen, mixtures containing oxygen, hydrogen peroxide, organic peroxides and hydroperoxides.

    摘要翻译: 高纯度的氧化铁是通过以微球形颗粒或废料或切屑的形式的金属铁与搅拌的单羧酸或多元羧酸的水溶液相对于第一羧基和pKa为0.5至6的反应制备的 通过在200-350℃的空气中加热分解成二氧化碳和水,每克原子铁使用0.03至1.5摩尔酸,1至20的水/铁重量比,并通过氧化 碳酸亚铁酸盐与铁盐,与选自氧的试剂,含氧的混合物,过氧化氢,有机过氧化物和氢过氧化物。