Production of fluorine compounds
    8.
    发明授权
    Production of fluorine compounds 失效
    生产氟化合物

    公开(公告)号:US07145046B2

    公开(公告)日:2006-12-05

    申请号:US10632103

    申请日:2003-08-01

    摘要: Inorganic and organic compounds containing fluorine can be produced, for example, from corresponding chlorine-containing compounds by chlorine/fluorine exchange using fluorinating agents. Monocyclic or bicyclic compounds containing at least two nitrogen atoms, at least one of which is incorporated into the ring system, can be used as catalysts or fluorinating agents for chlorine/fluorine exchange reactions to produce sulfurylchlorofluoride, sulfurylfluoride or a carboxylic acid fluoride. It is likewise possible to carry out HF addition to unsaturated carbon-carbon bonds or chlorine/fluorine exchange at carbon atoms. For example, monochloro or dichloro malonic acid esters can be converted to difluoro malonic acid esters. Work-up of the reaction mixture can be simplified by using suitable solvents which force the reaction mixture to exist in two phases.

    摘要翻译: 含氟的无机和有机化合物可以例如通过使用氟化剂的氯/氟交换从相应的含氯化合物制备。 含有至少两个氮原子(其中至少一个被引入环系中)的单环或双环化合物可以用作氯/氟交换反应的催化剂或氟化剂,以产生磺酰氯,磺酰氟或羧酸氟化物。 同样可以在碳原子处进行HF添加到不饱和碳 - 碳键或氯/氟交换。 例如,一氯或二氯丙二酸酯可以转化为二氟丙二酸酯。 反应混合物的后处理可以通过使用强制反应混合物在两相中存在的合适的溶剂来简化。

    UV-activated chlorination process
    9.
    发明授权
    UV-activated chlorination process 失效
    紫外线活化氯化法

    公开(公告)号:US07282120B2

    公开(公告)日:2007-10-16

    申请号:US11008109

    申请日:2004-12-10

    IPC分类号: C07B63/00 C07C17/00

    摘要: A method of producing alkanes containing chlorine by addition of chlorine to C—C double bonds or C—C triple bonds or by exchange of hydrogen for chlorine by contacting the starting compound in the gas or liquid phase with elemental chlorine and irradiating the reaction mixture with UV light having a wavelength of λ≧280 nm. In this way pentachloroethane can be produced from trichloroethylene, CFC-113 from HCFC-123 or HFC-133a, CFC-112a from HCFC-142b, or HCFC-123 from HCFC-133a. The method also is suitable for separating photochlorinatable impurities from HFC-365-mfc to obtain purified HFC-365-mfc. Advantages include high yields and excellent selectivity.

    摘要翻译: 通过将氯气加入到CC双键或CC三键中,或通过使气相或液相中的起始化合物与元素氯接触并将反应混合物与具有 λ> 280nm波长。 以这种方式,可以从三氯乙烯,来自HCFC-123的CFC-113或HFC-133a,来自HCFC-142b的CFC-112a或来自HCFC-133a的HCFC-123制备五氯乙烷。 该方法也适用于从HFC-365-mfc分离光可氯化杂质,得到纯化的HFC-365-mfc。 优点包括高产率和极好的选择性。

    Catalyst synthesis of halogenated compounds with catalyst regeneration with elemental halogen
    10.
    发明申请
    Catalyst synthesis of halogenated compounds with catalyst regeneration with elemental halogen 失效
    用元素卤素催化剂再生催化合成卤化物

    公开(公告)号:US20060036118A1

    公开(公告)日:2006-02-16

    申请号:US11259138

    申请日:2005-10-27

    IPC分类号: C07C17/013

    摘要: Catalysts such as antimony halides, which are useful in fluorination reactions involving hydrogen fluoride, may be reduced during the reaction and require regeneration. Regenerative oxidation is usually carried out by introducing elemental halogen, preferably fluorine or chlorine, into the reaction mixture. In accordance with the invention elemental halogen is prevented from coming into contact with starting materials or intermediate products which are reactive therewith. This is preferably achieved by withdrawing part of the reaction mixture from the reactor, mixing the withdrawn part with chlorine or fluorine in order to regenerate the catalyst, and thereafter returning the withdrawn part to the reactor.

    摘要翻译: 可用于涉及氟化氢的氟化反应中的锑卤化物等催化剂可在反应期间减少并需要再生。 再生氧化通常通过将元素卤素,优选氟或氯引入反应混合物中来进行。 根据本发明,防止元素卤素与与其反应的原料或中间产物接触。 优选通过将部分反应混合物从反应器中取出,将取出的部分与氯或氟混合以使催化剂再生,然后将引出的部分返回到反应器中来实现。