-
公开(公告)号：US3940469A
公开(公告)日：1976-02-24
申请号：US419091
申请日：1973-11-26
CPC分类号： D01D5/24 , B01D69/08 , B01D71/56 , C08J3/097 , C08L29/04 , C08L77/00 , Y10S524/909 , Y10T428/29 , Y10T428/2975
摘要： Hollow membrane fibers are formed from a mixture of N-alkoxyalkyl polyamide, polyvinyl alcohol, di(lower alkyl) sulfoxide and water. The fibers are useful for separating chemicals, e.g., aliphatically-unsaturated hydrocarbons, from mixtures containing them.
摘要翻译： 中空膜纤维由N-烷氧基烷基聚酰胺，聚乙烯醇，二（低级烷基）亚砜和水的混合物形成。 纤维可用于从含有它们的混合物中分离化学物质，例如脂族不饱和烃。
-
公开(公告)号：US4039499A
公开(公告)日：1977-08-02
申请号：US590072
申请日：1975-06-25
CPC分类号： D01D5/24 , B01D69/08 , B01D71/56 , C08J3/097 , C08L29/04 , C08L77/00 , Y10S524/909 , Y10T428/29 , Y10T428/2975
摘要： Hollow membrane fibers are formed from a mixture of N-alkoxyalkyl polyamide, polyvinyl alcohol, di(lower alkyl) sulfoxide and water. The fibers are useful for separating chemicals, e.g., aliphatically-unsaturated hydrocarbons, from mixtures containing them.
摘要翻译： 中空膜纤维由N-烷氧基烷基聚酰胺，聚乙烯醇，二（低级烷基）亚砜和水的混合物形成。 纤维可用于从含有它们的混合物中分离化学物质，例如脂族不饱和烃。
-
公开(公告)号：US4239506A
公开(公告)日：1980-12-16
申请号：US703942
申请日：1976-07-09
摘要： A material is separated from a fluid mixture by contacting the mixture containing the material with a first side of essentially solid, water-insoluble, hydrophilic, semi-permeable membrane in contact with an aqueous liquid barrier having ions which combine with the material to be separated to form a water-soluble complex. The partial pressure of the material on a second side of the semi-permeable membrane is sufficiently less than the partial pressure of the material in the mixture to provide separated material on the second side of the membrane. The separated material can be removed from the vicinity of the second side of the membrane by a gas stream. The second side of the membrane is contacted with an aqueous liquid medium to reduce the loss of the aqueous liquid barrier from the membrane which may otherwise decrease in separation efficiency during use due to water losses. The gas stream used to remove the separated material may be supersaturated with the aqueous medium, e.g. water, and may contact the membrane with the aqueous medium via condensation. Alternatively, the aqueous medium such as water may be applied by a continuous or intermittent film, spray or mist. The process is particularly useful for separating olefins, especially ethylene.
摘要翻译： 通过使含有材料的混合物与基本上固体的，不溶于水的，亲水的半透膜的第一侧接触，与具有离子的水性液体屏障接触，将材料与流体混合物分离，所述离子与待分离的材料组合 以形成水溶性络合物。 在半透膜的第二侧上的材料的分压足够小于混合物中材料的分压，以在膜的第二面上提供分离的材料。 分离的材料可以通过气流从膜的第二侧附近去除。 膜的第二面与含水液体介质接触，以减少膜的水性液体屏障的损失，否则由于水分损失在使用过程中分离效率可能降低。 用于除去分离的材料的气流可以用水介质过饱和，例如 水，并且可以通过冷凝与水介质接触膜。 或者，水性介质例如水可以通过连续或间歇的膜，喷雾或薄雾来施加。 该方法特别适用于分离烯烃，特别是乙烯。
-
公开(公告)号：US3951621A
公开(公告)日：1976-04-20
申请号：US365204
申请日：1973-05-30
摘要： Novel separation film membranes are made with cross-linked hydrophilic polyvinyl alcohol and nylon, and the films contain complex-forming metal components which are active in the presence of water. The polyvinyl alcohol is cross-linked by reaction with a polycarboxylic acid. The invention includes the membranes, their method of manufacture, and the method of using them to separate one or more components of a gaseous mixture.
摘要翻译： 新型分离膜膜由交联的亲水性聚乙烯醇和尼龙制成，并且膜含有在水存在下是活性的复合物形成金属组分。 聚乙烯醇与多元羧酸反应而交联。 本发明包括膜，它们的制造方法和使用它们分离气态混合物的一种或多种组分的方法。
-
5.发明授权Semi-permeable membrane compositions based on blends of polyamides and polyvinyl alcohols 失效基于聚酰胺和聚乙烯醇的共混物的半透膜组合物
公开(公告)号：US3980605A
公开(公告)日：1976-09-14
申请号：US395055
申请日：1973-09-07
CPC分类号： B01D71/56 , B01D61/38 , Y10T428/1379 , Y10T428/139
摘要： Semi-permeable membranes are made from polyamides, especially N-alkoxyalkyl polyamides, and water-soluble polyvinyl alcohols. The membranes are preferably formed as fibers. The membranes can be made from compositions containing the polymer components and a di(lower alkyl) sulfoxide, e.g. dimethyl sulfoxide. The membranes may contain complex-forming metal components. The membranes are useful for separating chemicals from their mixtures by techniques using an aqueous liquid barrier and complex-forming metals, e.g. for the separation of aliphatically-unsaturated hydrocarbons such as ethylene from close-boiling hydrocarbons.
摘要翻译： 半透膜由聚酰胺，特别是N-烷氧基烷基聚酰胺和水溶性聚乙烯醇制成。 膜优选形成为纤维。 膜可以由含有聚合物组分的组合物和二（低级烷基）亚砜，例如， 二甲基亚砜。 膜可能含有复合物形成金属组分。 该膜可用于通过使用水性液体屏障和络合物形成金属的技术从其混合物中分离化学品。 用于从近沸点烃分离脂族不饱和烃如乙烯。
-
公开(公告)号：US4237596A
公开(公告)日：1980-12-09
申请号：US948339
申请日：1978-10-04
CPC分类号： B01D63/021 , B01D61/38 , Y10T29/49716 , Y10T29/49815 , Y10T29/49885 , Y10T29/49888
摘要： Method for the manufacture of membrane separation units suitable for the separation of components from mixtures containing them. These separation units can be made from elongated anisotropic hollow fiber membranes and can be used for the separation of olefinic compounds from saturated materials.
摘要翻译： 用于制造适于将组分与含有它们的混合物分离的膜分离单元的方法。 这些分离单元可以由细长的各向异性中空纤维膜制成，并可用于从饱和材料中分离烯烃化合物。
-
7.发明授权Method of making a semi-permeable, essentially water-insoluble, hydrophilic nylon membrane and resultant product 失效制备半透性，基本上不溶于水的亲水性尼龙膜和所得产物的方法
公开(公告)号：US4106920A
公开(公告)日：1978-08-15
申请号：US497510
申请日：1974-08-14
CPC分类号： B01D67/003 , B01D61/38 , B01D71/56 , C07C7/152 , B01D2325/36 , Y10S264/62
摘要： There is described the preparation of hydrophilic, semi-permeable film membranes having an increase in pores and containing complex-forming metals. The films can be formed from solutions having film-forming material and pore-forming material dissolved in a solvent. The films can be useful for separating a component, e.g. an aliphatically-unsaturated hydrocarbon, from mixtures by the combined use of liquid barrier permeation and metal complexing techniques. The liquid barrier is at least partially within the hydrophilic film membrane during use, and the barrier contains complex-forming metal ions in aqueous solution. The metal ions may be, for example, noble metal, nickel, mercurous, cuprous or other metal ions, and mixtures of these metal ions, and the aqueous solution may contain other cations. The separation of ethylene from ethane and methane is of particular interest.
摘要翻译： 描述了具有孔增加并含有络合物形成金属的亲水性半透膜膜的制备。 膜可以由溶解在溶剂中的成膜材料和成孔材料的溶液形成。 该膜可用于分离组分，例如 脂族不饱和烃，通过组合使用液体屏障渗透和金属络合技术从混合物中获得。 液体屏障在使用过程中至少部分地在亲水膜膜内，并且屏障在水溶液中含有复合物形成金属离子。 金属离子可以是例如贵金属，镍，汞，亚铜或其它金属离子，以及这些金属离子的混合物，并且水溶液可以含有其它阳离子。 乙烯与乙烷和甲烷的分离是特别有意义的。
-
公开(公告)号：US4047908A
公开(公告)日：1977-09-13
申请号：US497481
申请日：1974-08-14
CPC分类号： B01D67/0093 , B01D61/38 , B01D71/56 , B01D71/78 , B01D2323/38
摘要： Novel gas separation film membranes are made by grafting alpha-olefinic, polymerizable monomers having hydrophilic functional groups and having, e.g., about from 2 to about 12 carbon atoms, to nylon, and forming a film from the resulting copolymers. A complex-forming metal component which is active in the presence of water is provided in the film. The invention also includes the process of separating components from gaseous mixtures using the membranes. Of particular interest is the separation of aliphatically-unsaturated hydrocarbons from mixtures, for example, the separation of ethylene from one or more of ethane, methane and hydrogen.
摘要翻译： 新型气体分离膜膜通过将具有亲水性官能团并具有例如约2至约12个碳原子的α-烯烃可聚合单体接枝到尼龙上，并由所得共聚物形成膜来制备。 在膜中提供在水存在下活性的络合物形成金属组分。 本发明还包括使用膜从气体混合物中分离组分的方法。 特别感兴趣的是从混合物中分离脂族不饱和烃，例如乙烯与乙烷，甲烷和氢气中的一种或多种的分离。
-
公开(公告)号：US4015955A
公开(公告)日：1977-04-05
申请号：US547217
申请日：1975-02-05
摘要： There is described an improved separation membrane-liquid barrier system of the type containing complex-forming, metal-containing ionic components, and an improved separation process in which the membrane-liquid barrier is employed. The membrane is in contact with an aqueous liquid barrier containing cuprous ions, such as a cuprous salt or a cuprous salt complex, e.g. a CuCl complex, preferably a CuCl--NH.sub.4 Cl--HCl complex, and the barrier is in contact with a reducing agent that retards the complexing Cu.sup.+ ion from being oxidized to Cu.sup.+.sup.2. The reducing agent is relatively stable when positioned in the membrane and is not unduly oxidized by air nor does it unduly interfere with the essential function of the cuprous ions during the separation process. Elemental copper may function as a reducing agent that retards oxidation of Cu.sup.+ ion to Cu.sup.+.sup.2. The liquid barrier containing complex-forming cuprous ions can be subjected to a strong reducing agent during the separation process to reduce some of the cuprous ions to elemental copper.
摘要翻译： 描述了包含复合物形成，含金属的离子组分的类型的改进的分离膜 - 液体屏障系统，以及采用膜 - 液体屏障的改进的分离方法。 膜与含有亚铜离子的水性液体屏障接触，例如亚铜盐或亚铜盐络合物，例如， CuCl配合物，优选CuCl-NH 4 Cl-HCl络合物，并且阻挡层与还原剂接触，所述还原剂阻止络合的Cu 2+离子被氧化成Cu 2+。 当还原剂在膜中定位并且不被空气过度氧化时，还原剂相对稳定，也不会在分离过程中过度干扰亚铜离子的基本功能。 元素铜可用作将Cu 2+离子氧化为Cu 2+的还原剂。 含有络合物形成亚铜离子的液体阻挡层可以在分离过程中经受强还原剂，以将一些亚铜离子还原为元素铜。
-
公开(公告)号：US4188817A
公开(公告)日：1980-02-19
申请号：US948334
申请日：1978-10-04
CPC分类号： B01D65/102 , B01D61/38 , G01M3/20
摘要： Method for detecting leakage of semipermeable membranes or hollow fibers, said membranes or fibers exhibiting salt rejection, which comprises contacting one side of the membrane or fiber with an aqueous salt solution so that purified water will pass across non-leaking members to the second side and a salt enriched aqueous solution will pass to the second side of leaking members, and measuring the salt content of the aqueous solution on the second side of the member so that leaking members can be detected.
摘要翻译： 用于检测半透膜或中空纤维的泄漏的方法，所述膜或纤维显示出盐析，其包括使膜或纤维的一侧与盐水溶液接触，使得净化水将穿过非泄漏构件传递到第二侧， 富含盐的水溶液将通过泄漏构件的第二侧，并且测量构件第二侧上的水溶液的盐含量，从而可以检测泄漏构件。
-
-
-
-
-
-
-
-
-
搜索结果
15 条记录 (耗时 0.021 秒)
