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    • 8. 发明授权
    • Process for preparing fluorochemicals
    • 制备含氟化合物的方法
    • US5387323A
    • 1995-02-07
    • US115202
    • 1993-08-31
    • Richard M. MindayThomas M. BarrettCharles F. KolpinJohn C. Smeltzer
    • Richard M. MindayThomas M. BarrettCharles F. KolpinJohn C. Smeltzer
    • C07C19/08C25B3/08
    • C25B3/08
    • 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.
    • 制备含氟化合物,例如全氟烷烃,全氟醚和全氟烷基叔胺的方法包括(a)形成包含至少一种可氟化的非官能有机起始化合物例如丙烷和至少一种其它化合物的混合物 以足以形成含氟化合物相的量存在,并且其选自(i)全氟化合物,例如全氟己烷,其在比可氟化的无机有机起始化合物更高的温度下沸腾,或 由可氟化的非官能有机起始化合物随后氟化得到的含氟化合物; 和(ii)前体化合物,例如己烷,其可原位氟化以产生这种全氟化合物; 和(b)在无水氟化氢存在下使混合物进行电化学氟化。
    • 9. 发明授权
    • Novel liquid membrane formulations and uses thereof
    • 新型液膜制剂及其用途
    • US4014785A
    • 1977-03-29
    • US620966
    • 1975-10-09
    • Norman N. LiGopal H. SinghalRichard M. MindayMartin L. Gorbaty
    • Norman N. LiGopal H. SinghalRichard M. MindayMartin L. Gorbaty
    • B01D61/40C08J3/09B01D13/00
    • B01D61/40C08J3/09
    • The instant invention relates to novel liquid membrane formulations, i.e., emulsions, which comprise an aqueous interior phase and a water-immiscible exterior phase; said water-immiscible exterior phase comprising an ethylene vinyl acetate copolymer and a solvent for this polymer. These compositions may additionally contain a water insoluble surfactant to stabilize the emulsions. In the most preferred embodiment, the aqueous interior phase comprises a strong acid, for example from about 1 to 10 percent by weight sulfuric acid. These emulsions are useful in liquid membrane processes for the separation of dissolved components from aqueous solution. Emulsions of the instant invention are characterized as showing very low swelling when contacted with aqueous solutions, especially at higher temperatures and thus are especially effective for use in the treatment of sour water feed streams by the liquid membrane technique.
    • 本发明涉及新型液膜制剂,即乳液,其包含水性内相和水不混溶的外部相; 所述与水不混溶的外部相包含乙烯乙酸乙烯酯共聚物和用于该聚合物的溶剂。 这些组合物可另外含有水不溶性表面活性剂以稳定乳液。 在最优选的实施方案中,水性内相包含强酸,例如约1至10重量%的硫酸。 这些乳液可用于从水溶液中分离溶解组分的液膜方法。 本发明的乳液的特征在于当与水溶液接触时显示非常低的溶胀度,特别是在较高温度下,因此特别有效地用于通过液膜技术处理酸性水进料流。