Manufacturing method and apparatus of 4-fluoroethylene carbonate
    1.
    发明授权
    Manufacturing method and apparatus of 4-fluoroethylene carbonate 有权
    4-氟乙烯碳酸酯的制备方法和装置

    公开(公告)号:US07268238B2

    公开(公告)日:2007-09-11

    申请号:US11072123

    申请日:2005-03-07

    IPC分类号: C07D317/42

    CPC分类号: C07D317/36 Y02P20/142

    摘要: The method of producing 4-fluoroethylene carbonate (FEC), in which ethylene carbonate (EC) reacts with a mixture of fluorine and nitrogen gases, includes feeding a mixture gas of fluorine gas and nitrogen gas into a reactor having ethylene carbonate charged therein, so as to react the ethylene carbonate with the mixture gas of the fluorine gas and the nitrogen gas. The mixture gas fed in the reactor is regulated to have a desired bubble size while passing through a gas bubble regulating column, in which a packing for a packed column is packed. In the method, EC directly reacts with F2/N2 mixture gas to produce FEC, thus a purification process is simple and it is possible to produce FEC at high conversion efficiency and selectivity.

    摘要翻译: 碳酸亚乙酯(EC)与氟和氮气的混合物反应的氟代碳酸亚乙酯(FEC)的制造方法包括将氟气和氮气的混合气体进料到装有碳酸亚乙酯的反应器中,因此 使碳酸亚乙酯与氟气和氮气的混合气体反应。 在反应器中供给的混合气被调节为具有期望的气泡尺寸,同时通过气泡调节塔,其中填充有填料柱的填料。 在该方法中,EC直接与F 2 N 2 / N 2 N 2混合气体反应以产生FEC,因此纯化过程简单,并且可以产生高转换效率的FEC 和选择性。

    Manufacturing method for lithium hexafluoro phosphate
    3.
    发明授权
    Manufacturing method for lithium hexafluoro phosphate 有权
    六氟磷酸锂的制备方法

    公开(公告)号:US06387340B1

    公开(公告)日:2002-05-14

    申请号:US09475074

    申请日:1999-12-29

    IPC分类号: C01B2510

    摘要: A method of preparing lithium hexafluoro phosphate (LiPF6) using phosphorous pentachloride (PCl5), lithium chloride (LiCl), and hydrogen fluoride (HF) as raw materials. The method includes the steps of: (a) reacting the phosphorous pentafluoride with the hydrogen fluoride to prepare phosphorous pentafluoride (PF5), and (b) reacting the phosphorous pentafluoride with the lithium chloride in a hydrogen fluoride to prepare the lithium hexafluoro phosphate. Also, in this method, anhydrous hydrogen fluoride, from which moisture was removed by treating with F2 gas, is used in the steps (a) and (b), and the step (b) further comprises contacting the reaction system of the step (b) with F2 gas. Accordingly, as the method adopts relatively cheap raw materials, such as PCl5, LiCl and the like, while a highly pure F2 obtained by an electrolysis is used in the reaction system, it has an advantage in that it enables lithium hexafluoro phosphate (LiPF6) to be prepared at a high yield and purity.

    摘要翻译: 以五氯化磷(PCl5),氯化锂(LiCl)和氟化氢(HF)为原料制备六氟磷酸锂(LiPF 6)的方法。 该方法包括以下步骤:(a)使五氟化磷与氟化氢反应制备五氟化磷(PF5),和(b)使氟化氢中的五氟化磷与氯化锂反应以制备六氟磷酸锂。 此外,在该方法中,在步骤(a)和(b)中使用通过用F2气体处理除去水分的无水氟化氢,并且步骤(b)还包括使步骤 b)用F2气。 因此,由于该方法采用比较便宜的原料,例如PCl5,LiCl等,而在反应体系中使用通过电解获得的高纯度的F2,其优点在于能够使六氟磷酸锂(LiPF 6) 以高产率和纯度制备。