申请人:MINNESOTA MINING AND MANUFACTURING COMPANY
公开号:EP0643155A2
公开(公告)日:1995-03-15
A process for preparing fluorochemical compounds, e.g., perfluoroalkanes, perfluoroethers, and perfluoroalkyl tertiary amines, comprises
(a) forming a mixture comprising at least one fluorinatable, non-functional organic starting compound, e.g., propane, and at least one other compound which is present in an amount sufficient to enable the formation of a fluorochemical phase and which is selected from the group consisting of
(i) perfluorochemical compounds, e.g., perfluorohexane, which boil at a higher temperature than either the fluorinatable, non-functional organic starting compound or the fluorochemical compound resulting from the subsequent fluorination of the fluorinatable, non-functional organic starting compound; and
(ii) precursor compounds, e.g., hexane, which can be fluorinated in situ to produce such perfluorochemical compounds; and
(b) subjecting the mixture to electrochemical fluorination in the presence of anhydrous hydrogen fluoride.
一种制备
氟化合物(如
全氟烷烃、
全氟醚和
全氟烷基叔胺)的工艺包括
(a) 形成一种混合物,该混合物包括至少一种可
氟化的非官能有机起始化合物(如丙 烷)和至少一种其它化合物,其含量足以形成
氟化学相,该化合物选自以下组别: (b) 将至少一种可
氟化的非官能有机起始化合物(如
丙烷)和至少一种其它化合物(其 含量足以形成
氟化学相,该化合物选自以下组别
(i)
全氟化合物,如
全氟己烷,其沸腾温度高于可
氟化的非功能性有机起始化合物或可
氟化的非功能性有机起始化合物随后
氟化产生的
氟化合物;以及
(ii) 可就地
氟化以生产此类
全氟化合物的前体化合物,如
正己烷;以及
(b) 在无
水氟化氢存在下,对混合物进行电
化学氟化。