Novel liquid membrane formulations and uses thereof
    1.
    发明授权
    Novel liquid membrane formulations and uses thereof 失效
    新型液膜制剂及其用途

    公开(公告)号:US4014785A

    公开(公告)日:1977-03-29

    申请号:US620966

    申请日:1975-10-09

    IPC分类号: B01D61/40 C08J3/09 B01D13/00

    CPC分类号: B01D61/40 C08J3/09

    摘要: 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.

    摘要翻译: 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。

    Sour water treating process utilizing liquid membranes having a
sulfonated polymer exterior oil phase
    2.
    发明授权
    Sour water treating process utilizing liquid membranes having a sulfonated polymer exterior oil phase 失效
    酸水处理工艺利用具有磺化聚合物外部油相的液膜

    公开(公告)号:US4064040A

    公开(公告)日:1977-12-20

    申请号:US682271

    申请日:1976-05-03

    CPC分类号: C08J3/09 B01D61/40

    摘要: This invention relates to novel liquid membrane formulations which are water-in-oil emulsions wherein the oil phase comprises a sulfonated polymer having a backbone which is substantially nonaromatic, for example, less than 10 mole % aromatic, and uses thereof in high temperature liquid membrane processes. The emulsions are useful in liquid membrane water treating processes, especially in water treating processes which are desirably run at high temperatures. In the most preferred embodiment, these compositions are used in a liquid membrane sour water treating process wherein a waste water stream containing ammonium sulfide is contacted with a liquid membrane emulsion, i.e. the emulsions of the instant invention, at conditions whereby ammonia permeates through the external phase of the emulsion into an acidic internal phase wherein it is converted to a nonpermeable form, e.g. ammonium ion, while H.sub.2 S is continuously stripped out of the waste water solution by means of an inert gas, e.g. steam. Processes of this sort are most effectivey carried out at temperatures greater than 80.degree. C. wherein the emulsions of the instant invention have excellent stability.

    摘要翻译: 本发明涉及新的液膜制剂,其是油包水乳液,其中油相包含具有基本上非芳香的主链的磺化聚合物,例如小于10摩尔%的芳香族,以及其在高温液体膜中的用途 过程。 乳液可用于液膜水处理方法,特别是在期望在高温下运行的水处理过程中。 在最优选的实施方案中,这些组合物用于液膜酸性水处理方法中,其中含有硫化铵的废水流与液体膜乳液接触,即本发明的乳液,其中氨渗透到外部 将乳液相转变成酸性内相,其中将其转化为不透气的形式,例如, 铵离子,而H2S通过惰性气体例如废水溶液连续地从废水溶液中排出。 蒸汽。 这种方法在大于80℃的温度下最有效地进行,其中本发明的乳液具有优异的稳定性。

    Novel liquid membrane formulations and use thereof
    3.
    发明授权
    Novel liquid membrane formulations and use thereof 失效
    新型液膜制剂及其用途

    公开(公告)号:US3969265A

    公开(公告)日:1976-07-13

    申请号:US482592

    申请日:1976-06-24

    IPC分类号: B01D61/40 C08D7/00 C08D7/10

    CPC分类号: B01D61/40

    摘要: This invention relates to novel liquid membrane formulations which are water-in-oil emulsions wherein the oil phase comprises a sulfonated polymer having a backbone which is substantially nonaromatic, for example, less than 10 mole % aromatic, and uses thereof in high temperature liquid membrane processes. The emulsions are useful in liquid membrane water treating processes, especially in water treating processes which are desirably run at high temperatures. In the most preferred embodiment, these compositions are used in a liquid membrane sour water treating process wherein a waste water stream containing ammonium sulfide is contacted with a liquid membrane emulsion, i.e., the emulsions of the instant invention, at conditions whereby ammonia permeates through the external phase of the emulsion into an acidic internal phase wherein it is converted to a nonpermeable form, e.g., ammonium ion, while H.sub.2 S is continuously stripped out of the waste water solution by means of an inert gas, e.g., steam. Processes of this sort are most effectively carried out at temperatures greater than 80.degree.C. wherein the emulsions of the instant invention have excellent stability.

    摘要翻译: 本发明涉及新的液膜制剂,其是油包水乳液,其中油相包含具有基本上非芳香的主链的磺化聚合物,例如小于10摩尔%的芳香族,以及其在高温液体膜中的用途 过程。 乳液可用于液膜水处理方法,特别是在期望在高温下运行的水处理过程中。 在最优选的实施方案中,这些组合物用于液体膜酸性水处理方法中,其中含有硫化铵的废水流与本发明的液体膜乳液(即本发明的乳液)接触,其中氨渗透通过 乳状液的外相进入酸性内部相,其中将其转化为不渗透的形式,例如铵离子,同时通过惰性气体例如蒸汽将H 2 S连续地从废水溶液中排出。 这种方法在大于80℃的温度下最有效地进行,其中本发明的乳液具有优异的稳定性。

    Novel liquid membrane formulations and uses thereof
    4.
    发明授权
    Novel liquid membrane formulations and uses thereof 失效
    新型液膜制剂及其用途

    公开(公告)号:US3959173A

    公开(公告)日:1976-05-25

    申请号:US492616

    申请日:1974-07-29

    IPC分类号: B01D61/40 C08J3/09 B01J13/00

    CPC分类号: C08J3/09 B01D61/40

    摘要: 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.

    摘要翻译: 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。

    Process for preparing fluorochemicals
    6.
    发明授权
    Process for preparing fluorochemicals 失效
    制备含氟化合物的方法

    公开(公告)号:US5387323A

    公开(公告)日:1995-02-07

    申请号:US115202

    申请日:1993-08-31

    IPC分类号: C07C19/08 C25B3/08

    CPC分类号: C25B3/08

    摘要: 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.

    摘要翻译: 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。

    FLUORINATED OXIRANES AS FIRE EXTINGUISHING COMPOSITIONS AND METHODS OF EXTINGUISHING FIRES THEREWITH
    9.
    发明申请
    FLUORINATED OXIRANES AS FIRE EXTINGUISHING COMPOSITIONS AND METHODS OF EXTINGUISHING FIRES THEREWITH 审中-公开
    氟化物作为灭火组合物及其灭火方法

    公开(公告)号:US20130269958A1

    公开(公告)日:2013-10-17

    申请号:US13995371

    申请日:2012-01-09

    IPC分类号: A62D1/00 A62C2/00

    摘要: Fire extinguishing compositions and methods for extinguishing, controlling, or preventing fires are described wherein the extinguishing agent includes a fluorinated oxirane alone, or in admixture with a co-extinguishing agent selected from hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, fluorinated ketones, hydrobromocarbons, fluorinated olefins, hydrofluoroolefins, fluorinated sulfones, fluorinated vinylethers, and mixtures thereof. Also described are methods of preventing or extinguishing fires by introducing these compositions into an air-containing enclosed area and maintaining the composition in an amount sufficient to suppress combustion of combustible material in that enclosed area.

    摘要翻译: 描述了灭火,控制或预防火灾的灭火组合物和方法,其中灭火剂包括单独的氟化环氧乙烷或与选自氢氟碳化合物,氢氯氟烃,全氟化碳,全氟聚醚,氢氟醚,氢氟聚醚,氯氟烃的共灭火剂混合, 溴氟烃,溴氯氟烃,碘氟碳化物,氢氟烃,氟化酮,氢溴烃,氟化烯烃,氢氟烯烃,氟化砜,氟化乙烯基醚及其混合物。 还描述了通过将这些组合物引入含空气的封闭区域并将组合物保持在足以抑制该封闭区域中的可燃材料的燃烧的量来防止或扑灭火焰的方法。