Method and apparatus for the preparation of porous materials and mixed metal oxides
    2.
    发明申请
    Method and apparatus for the preparation of porous materials and mixed metal oxides 审中-公开
    用于制备多孔材料和混合金属氧化物的方法和装置

    公开(公告)号:US20070014715A1

    公开(公告)日:2007-01-18

    申请号:US11485008

    申请日:2006-07-12

    IPC分类号: C01G23/00

    摘要: Disclosed herein is a method for the preparation of porous materials, which can be used not only for a catalyst, an adsorbent, a catalytic support, ion exchange and gas storage, but also for adsorbent of guest molecules due to nanometer spaces (nanospaces), and of mixed metal oxides which are used as functional ceramic materials. More particularly, disclosed is a method for the preparation of porous materials and mixed metal oxides, in which microwave energy is used as a heating source, and a tube free of connection portions is used as a reactor, and the pressure within the reactor is controlled by measuring the pressure of gas remaining after the separation of solid and liquid, so that the method has increased operational stability and reproducibility, makes the control of residence time easy, and can achieve an increase in productivity. Also, disclosed is an apparatus for the continuous preparation of porous materials and mixed metal oxides, which can perform the preparation method.

    摘要翻译: 本文公开了一种制备多孔材料的方法,其不仅可用于催化剂,吸附剂,催化载体,离子交换和气体储存,而且可用于由于纳米空间(纳米空间)引起的客体分子的吸附剂, 和用作功能陶瓷材料的混合金属氧化物。 更具体地,公开了一种制备多孔材料和混合金属氧化物的方法,其中使用微波能量作为加热源,并且使用不具有连接部分的管作为反应器,并且控制反应器内的压力 通过测量分离固体和液体后残留的气体压力,使得该方法具有增加的操作稳定性和再现性,使得停留时间的控制变得容易,并且可以实现生产率的提高。 此外,还公开了可以进行制备方法的连续制备多孔材料和混合金属氧化物的装置。

    Titania photocatalyst and its preparing method

    公开(公告)号:US06566300B2

    公开(公告)日:2003-05-20

    申请号:US09866759

    申请日:2001-05-30

    IPC分类号: B01J2300

    摘要: The present invention relates to a novel titania photocatalyst and its manufacturing method. More specifically, the present invention is to provide the quantum-sized novel titania photocatalyst prepared the steps comprising: (a) titanium tetraisopropoxide is encapsulated in zeolite support by adding citric acid to isopropyl alcohol; (b) ethylene glycol is dissolved herein to obtain a uniformly dispersed mixture solution; and (c) it is encapsulated in zeolite cavities. And thus, titania photocatalyst of the present invention has some advantages in that (a) it provides greatly increased surface area and photocatalytic activity due to the smaller granule than the commercial titania powder; (b) it is uniformly dispersed to quantum size zeolite cavities rather than forming large clusters caused by the aggregation of the conventional titania hyperfine powder; and (c) since the quantum efficiency of titania powder in the UV region is maximized thereby, it effectively and promptly removes the hazardous gas like ammonia and sulfide in the atmosphere and organic material in water waste through photo-oxidation reaction.