Process to obtain CFC 113a from CFC 113
    73.
    发明授权
    Process to obtain CFC 113a from CFC 113 失效
    从CFC 113获得CFC 113a的方法

    公开(公告)号:US06791001B2

    公开(公告)日:2004-09-14

    申请号:US10072873

    申请日:2002-02-12

    CPC classification number: B01J27/125 C07C17/358 C07C19/12

    Abstract: A process in gaseous phase to obtain CFC 113a starting from CFC 113, wherein CFC 113, optionally diluted with a gas inert under the reaction conditions, is let flow on a catalyst formed by aluminum fluoride.

    Abstract translation: 气相中从CFC 113开始获得CFC 113a的方法,其中CFC 113(其任选地在反应条件下用惰性气体稀释)在由氟化铝形成的催化剂上流动。

    Method of reaction in water catalyzed by Lewis acid
    74.
    发明授权
    Method of reaction in water catalyzed by Lewis acid 失效
    路易斯酸催化水反应的方法

    公开(公告)号:US06525227B1

    公开(公告)日:2003-02-25

    申请号:US09762102

    申请日:2001-04-04

    Applicant: Shu Kobayashi

    Inventor: Shu Kobayashi

    Abstract: A reaction method by a novel Lewis acid catalyst stable in water for organic synthesis by using a metal compound stable in water and functioning as a Lewis acid catalyst and using water as apart or all of a solvent, the metal ion of the metal compound having a hydrolysis constant (pKh) of: 4.3≦pKh≦10.1 and a water exchange rate constant (WERC) of 3.2×106M−1sec−1 or more.

    Abstract translation: 一种通过使用在水中稳定并用作路易斯酸催化剂并用作分离或全部溶剂的水的金属化合物在水中稳定用于有机合成的新型路易斯酸催化剂的反应方法,金​​属化合物的金属离子具有 水解常数(pKh)为:4.3 <= pKh <= 10.1,水交换率常数(WERC)为3.2×106M-1sec-1以上。

    Method for producing 1,1,1,3,3-pentafluoropropane

    公开(公告)号:US06316681B1

    公开(公告)日:2001-11-13

    申请号:US08982803

    申请日:1996-12-04

    CPC classification number: C07C19/08 B01J27/125 C07C17/00 C07C17/21 C07C21/18

    Abstract: The present invention relates to a method for producing 1,1,1,3,3-pentafluoropropane. This method includes a first step of fluorinating 1-chloro-3,3,3-trifluoropropene in a liquid phase by hydrogen fluoride in the presence of an antimony compound as a catalyst, or a second step of fluorinating 1-chloro-3,3,3-trifluoropropene in a gas phase by hydrogen fluoride in the presence of a fluorination catalyst. If the first step is taken, 1,1,1,3,3-pentafluoropropane can be produced with a high yield. If the second step is taken, 1,1,1,3,3-pentafluoropropane can continuously be easily produced. Therefore, the second step is useful for an industrial scale production thereof. According to the invention, 1-chloro-3,3,3-trifluoropropene may be produced by a method including a step of reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in a gas phase in the presence of a fluorination catalyst. This method is useful, because yield of 1-chloro-3,3,3-trifluoropropene is high.

    Catalyst for the fluorination of halogenated organic compounds
    80.
    发明授权
    Catalyst for the fluorination of halogenated organic compounds 失效
    卤化有机化合物氟化催化剂

    公开(公告)号:US06300530B1

    公开(公告)日:2001-10-09

    申请号:US09305676

    申请日:1999-05-05

    Applicant: Paolo Cuzzato

    Inventor: Paolo Cuzzato

    Abstract: Catalyst comprising a supported Cr(III) amorphous compound, characterized in that the support is formed by an aluminum trifluoride (AlF3) having an high surface area obtainable by alumina fluorination with gaseous HF at an initial temperature lower than 300° C., the temperature is rised with a temperature gradient≦100° C./hour up to the final temperature>320° C. and

    Abstract translation: 催化剂,其包含负载的Cr(III)无定形化合物,其特征在于,所述载体由具有高表面积的三氟化铝(AlF 3)形成,所述三氟化铝通过在低于300℃的初始温度下用气态HF进行氧化铝氟化获得, 在温度梯度<= 100℃/小时之前升温至最终温度> 320℃和<450℃,氟化在最终温度下继续进行,直到进料​​至少等于 化学计量相对于氧化铝,进行氟化,直到获得氟含量不低于化学计量的95%的氟化氧化铝。

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