METHOD FOR PREPARING VINYLIDENE FLUORIDE
    1.
    发明申请
    METHOD FOR PREPARING VINYLIDENE FLUORIDE 失效
    制备氟乙烯氟化物的方法

    公开(公告)号:US20120130136A1

    公开(公告)日:2012-05-24

    申请号:US13123353

    申请日:2009-08-20

    CPC classification number: C07C17/23 C07C17/25 C07C21/18

    Abstract: The present invention relates to the method for obtaining vinylidene fluoride and the subject matter thereof is more particularly the production of vinylidene fluoride by pyrolysis of 1,2-dichloro-2,2-difluoroethane in the presence of hydrogen at a temperature of greater than or equal to 400° C.

    Abstract translation: 本发明涉及获得偏二氟乙烯的方法,其主题更具体地是在氢气存在下,在大于或等于2的温度下,通过1,2-二氯-2,2-二氟乙烷的热解产生偏二氟乙烯, 等于400℃

    Process for manufacture of lithium hexafluorophosphate
    2.
    发明授权
    Process for manufacture of lithium hexafluorophosphate 失效
    六氟磷酸锂的制造方法

    公开(公告)号:US5935541A

    公开(公告)日:1999-08-10

    申请号:US89188

    申请日:1998-06-03

    CPC classification number: C01D15/005

    Abstract: The process of the present invention consists in bringing into contact, on the one hand, (A) gaseous phosphorus pentafluoride or a gaseous mixture comprising phosphorus pentafluoride and hydrochloric acid, and, on the other hand, (B) a solution of lithium fluoride in hydrofluoric acid, in a column (10) having a sufficient number of transfer units to carry out the reaction of PF.sub.5 with LiF under the chosen conditions of temperature, of pressure and of molar ratio of the two contrasting reactants and with complete or substantially complete absorption of the PF.sub.5 in the column. This process makes it possible to solve the problems of blockage by preventing recrystallizations of salts; to discharge the heat given off by the reaction by the evaporation of a portion of the HF; and to separate the HCl which may be contained in the starting PF.sub.5, without loss of PF.sub.5, thus allowing subsequent recovery/value enhancement of this HCl. Moreover, this process is very simple, with a very small number of stages, which makes it possible to avoid any entry of air or moisture capable of contaminating the final LiPF.sub.6.

    Abstract translation: 本发明的方法是一方面与(A)气态五氟化磷或包含五氟化磷和盐酸的气态混合物接触,另一方面,(B)将氟化锂溶液 氢氟酸在具有足够数目的转移单元的塔(10)中,在选择的温度,压力和两种对比反应物的摩尔比条件下进行PF5与LiF的反应,并且具有完全或基本上完全的吸收 的PF5在列中。 该方法可以通过防止盐的再结晶来解决堵塞的问题; 通过HF的一部分的蒸发来排出由反应产生的热量; 并分离可能包含在起始PF5中的HCl,而不损失PF5,从而允许该HCl随后的恢复/增值。 此外,该方法非常简单,具有非常少的阶段,这使得可以避免任何进入能够污染最终LiPF 6的空气或水分。

    PROCESS FOR PRODUCING PENTAFLUOROETHANE
    3.
    发明申请
    PROCESS FOR PRODUCING PENTAFLUOROETHANE 失效
    生产四氢呋喃的方法

    公开(公告)号:US20100210884A1

    公开(公告)日:2010-08-19

    申请号:US12305857

    申请日:2007-05-21

    CPC classification number: C07C17/383 C07C17/206 C07C17/21 C07C19/08 Y02P20/582

    Abstract: The present invention relates to a process for producing pentafluoroethane. More particularly, the subject of the invention is a continuous process for producing pentafluoroethane comprising (i) a step of fluorinating perchloroethylene (PER) with hydrofluoric acid, in the gas phase, in the presence of a catalyst, (ii) a step of separating the products issuing from step (i) in order to give a fraction of light products and a fraction of heavy products, comprising hydrofluoric acid, unreacted perchloroethylene and under-fluorinated products, and (iii) a step of pretreating the fraction of heavy products before recycling to step (i).

    Abstract translation: 本发明涉及一种生产五氟乙烷的方法。 更具体地,本发明的主题是生产五氟乙烷的连续方法,其包括(i)在气相中,在催化剂存在下,用氢氟酸氟化全氯乙烯(PER)的步骤,(ii)分离步骤 从步骤(i)中发出的产品,以产生一小部分轻质产品和一部分重质产品,其中包括氢氟酸,未反应的全氯乙烯和未完全氟化的产物,以及(iii)预处理重质产物部分的步骤 回收到步骤(i)。

    Process for producing pentafluoroethane
    5.
    发明授权
    Process for producing pentafluoroethane 失效
    五氟乙烷生产工艺

    公开(公告)号:US08110713B2

    公开(公告)日:2012-02-07

    申请号:US12305857

    申请日:2007-05-21

    CPC classification number: C07C17/383 C07C17/206 C07C17/21 C07C19/08 Y02P20/582

    Abstract: The present invention relates to a process for producing pentafluoroethane. More particularly, the subject of the invention is a continuous process for producing pentafluoroethane comprising (i) a step of fluorinating perchloroethylene (PER) with hydrofluoric acid, in the gas phase, in the presence of a catalyst, (ii) a step of separating the products issuing from step (i) in order to give a fraction of light products and a fraction of heavy products, comprising hydrofluoric acid, unreacted perchloroethylene and under-fluorinated products, and (iii) a step of pretreating the fraction of heavy products before recycling to step (i).

    Abstract translation: 本发明涉及一种生产五氟乙烷的方法。 更具体地,本发明的主题是生产五氟乙烷的连续方法,其包括(i)在气相中,在催化剂存在下,用氢氟酸氟化全氯乙烯(PER)的步骤,(ii)分离步骤 从步骤(i)中发出的产品,以产生一小部分轻质产品和一部分重质产品,其中包括氢氟酸,未反应的全氯乙烯和未完全氟化的产物,以及(iii)预处理重质产物部分的步骤 回收到步骤(i)。

    Method for preparing vinylidene fluoride
    8.
    发明授权
    Method for preparing vinylidene fluoride 失效
    偏二氟乙烯的制备方法

    公开(公告)号:US08350101B2

    公开(公告)日:2013-01-08

    申请号:US13123353

    申请日:2009-08-20

    CPC classification number: C07C17/23 C07C17/25 C07C21/18

    Abstract: The present invention relates to the method for obtaining vinylidene fluoride and the subject matter thereof is more particularly the production of vinylidene fluoride by pyrolysis of 1,2-dichloro-2,2-difluoroethane in the presence of hydrogen at a temperature of greater than or equal to 400° C.

    Abstract translation: 本发明涉及获得偏二氟乙烯的方法,其主题更具体地是在氢气存在下,在大于或等于2的温度下,通过1,2-二氯-2,2-二氟乙烷的热解产生偏二氟乙烯, 等于400℃

    PROCESS FOR PREPARING (HYDRO)(CHLORO)OLEFINS
    9.
    发明申请
    PROCESS FOR PREPARING (HYDRO)(CHLORO)OLEFINS 审中-公开
    制备(水解)(氯仿)油的方法

    公开(公告)号:US20100191025A1

    公开(公告)日:2010-07-29

    申请号:US12601365

    申请日:2008-05-13

    CPC classification number: C07C17/206 C07C17/25 C07C21/18

    Abstract: The present invention relates to a process for preparing (hydro)(chloro)fluoroolefins comprising at least one step of fluorination in the liquid phase of a (hydro)haloalkane or of a (hydro)haloalkene in the presence of at least one ionic liquid as a catalyst. The ionic liquids are derivatives of Lewis acids based on aluminum, titanium, niobium, tantalum, tin, antimony, nickel, zinc or iron.

    Abstract translation: 本发明涉及一种制备(氢)(氯)氟代烯烃的方法,该方法在至少一种离子液体存在下,在(氢)卤代链烷烃或(氢))卤代烯烃的液相中至少包含一个氟化步骤, 催化剂 离子液体是基于铝,钛,铌,钽,锡,锑,镍,锌或铁的路易斯酸的衍生物。

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