Titanium Oxide Base Photocatalyst, Process for Producing the Same and Use Thereof
    12.
    发明申请
    Titanium Oxide Base Photocatalyst, Process for Producing the Same and Use Thereof 审中-公开
    氧化钛基光催化剂,其生产方法及用途

    公开(公告)号:US20070248831A1

    公开(公告)日:2007-10-25

    申请号:US11578874

    申请日:2005-04-19

    IPC分类号: B01J35/02 B32B9/00

    摘要: A highly active titanium oxide photocatalyst of the type responsive to visible light is prepared by subjecting a titanium (hydr)oxide raw material obtained by neutralizing an acidic titanium compound in ammonia or an amine under conditions such that the final pH is 7 or below to heat treatment in an atmosphere containing a hydrolyzable compound followed by contact with water and additional heat treatment at a temperature of at least 350° C. The resulting titanium oxide photocatalyst comprises titanium oxide with a specific surface area of at most 120 m2/g and with the amount of surface hydroxyl groups being at least 600 μeq/g. Preferably the density of surface hydroxyl groups is at least 8 μeq/m2, and the ratio of the amount of terminal type hydroxyl groups (T) to the amount of bridge type hydroxyl groups (B) in the surface hydroxyl groups satisfies T/B≧0.20. This titanium oxide photocatalyst has an ESR spectrum having two types of triplet signal for which the g values of the main spectra are 1.993-2.003 and 2.003-2.011, respectively, and it is also identified by having ratios of the strengths of these signals before irradiation with visible light, under irradiation, and immediately after the stop of irradiation which are different from conventional products.

    摘要翻译: 通过使在最终pH为7以下的条件下将氨基或胺中的酸性钛化合物得到的钛(氢化物)氧化物原料进行加热,制备对可见光敏感的高活性氧化钛光催化剂 在含有可水解化合物的气氛中进行处理,然后与水接触,并在至少350℃的温度下进行额外的热处理。所得到的氧化钛光催化剂包括比表面积至多为120μm2的氧化钛, / SUP / g,表面羟基的量为至少600mueq / g。 优选地,表面羟基的密度为至少8mueq / m 2,并且末端型羟基(T)的量与桥型羟基的量的比例(B)在 表面羟基满足T / B> = 0.20。 该氧化钛光催化剂具有ESR谱,其具有两种类型的三重态信号,其主要光谱的g值分别为1.993-2.003和2.003-2.011,并且还通过在照射前具有这些信号的强度比来鉴定 具有可见光,照射下,以及在与常规产品不同的照射停止之后。

    Sintered object of silicon monoxide and method for producing the same
    13.
    发明授权
    Sintered object of silicon monoxide and method for producing the same 失效
    一氧化硅的烧结体及其制造方法

    公开(公告)号:US07151068B2

    公开(公告)日:2006-12-19

    申请号:US10501996

    申请日:2002-11-29

    IPC分类号: C04B35/01

    摘要: A sintered object of silicon monoxide for use as a material for forming silicon oxide thin films is provided of which the evaporation residue as determined by subjecting a sample thereof to thermogravimetry at a heating temperature of 1,300° C. and in a vacuum atmosphere, namely at a pressure of not higher than 10 Pa, is not more than 4% by mass relative to the sample before measurement. This sintered object can be produced by sintering SiO particles having a particle diameter of not smaller than 250 μm, either after press forming thereof or during press forming thereof, in a non-oxygen atmosphere. This sintered object is high in evaporation rate and, when it is used as a material for film formation, an improvement in productivity in producing silicon oxide thin films can be expected. Thus, it can be widely applied in forming silicon oxide thin films useful as electric insulating films, mechanical protection films, optical films, barrier films of food packaging materials, etc.

    摘要翻译: 提供用作形成氧化硅薄膜的材料的一氧化硅的烧结体,其中通过将样品在1,300℃的加热温度和真空气氛中,即在 10Pa以下的压力相对于测定前的样品不超过4质量%。 该烧结体可以通过在非氧气氛中烧结粒径不小于250μm的SiO粒子,或者在其压制成型之后或在其压制成形期间来制造。 该烧结体的蒸发速度高,并且当其用作成膜材料时,可以预期提高生产氧化硅薄膜的生产率。 因此,可以广泛地应用于形成用作电绝缘膜,机械保护膜,光学膜,食品包装材料的阻隔膜等的氧化硅薄膜等。

    Process for Producing Ti and Apparatus Therefor
    19.
    发明申请
    Process for Producing Ti and Apparatus Therefor 审中-公开
    生产钛的方法及其设备

    公开(公告)号:US20100089204A1

    公开(公告)日:2010-04-15

    申请号:US11992162

    申请日:2006-08-22

    IPC分类号: C22B34/12

    摘要: A process for producing Ti, comprising a reduction step of reacting TiCl4 with Ca in a CaCl2-containing molten salt having the Ca dissolved therein to thereby form Ti particles, a separation step of separating the Ti particles formed in said molten salt from said molten salt and an electrolysis step of electrolyzing the molten salt so as to increase the Ca concentration, wherein the molten salt increased in Ca concentration in the electrolysis step is introduced into a regulating cell to thereby render the Ca concentration of the molten salt constant and thereafter the molten salt is used for the reduction of TiCl4 in the reduction step. In the present invention, the Ca concentration of the molten salt to be fed to the corresponding reduction vessel can be inhibited from fluctuating and, at the same time, can maintain high concentration levels. Further, a large volume of the molten salt can be treated continuously. Therefore, the reduction reaction of TiCl4 can be efficiently performed, and the process can be effectively utilized in the production of Ti by Ca reduction as a production process for realizing Ti production on an industrial scale.

    摘要翻译: 一种制备Ti的方法,包括在溶解有Ca的含CaCl 2的熔融盐中使TiCl4与Ca反应从而形成Ti颗粒的还原步骤,将在所述熔融盐中形成的Ti颗粒与所述熔融盐分离的分离步骤 以及电解电解步骤,电解所述熔融盐以增加所述Ca浓度,其中将所述电解步骤中的Ca浓度升高的所述熔融盐引入调节池中,从而使所述熔融盐的Ca浓度恒定, 盐在还原步骤中用于还原TiCl4。 在本发明中,可以抑制供给到相应的还原容器的熔融盐的Ca浓度的波动,同时可以保持高浓度水平。 此外,可以连续地处理大量的熔融盐。 因此,可以有效地进行TiCl 4的还原反应,并且通过Ca还原可以有效地利用Ti的制造,作为实现工业规模的Ti生产的制造方法。