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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。
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公开(公告)号：US4020016A
公开(公告)日：1977-04-26
申请号：US554034
申请日：1975-02-28
申请人： Charles S. Sokol
发明人： Charles S. Sokol
CPC分类号： C11D3/33
摘要： Aqueous cleaning compositions, especially effective in dissolving soap curd, are provided which comprise in aqueous solution an ammonium, alkylamine or hydroxy-alkylamine salt of nitrilotriacetic acid, an alkylene polyamine polycarboxylic acid, or mixtures thereof, and one or more nonionic surfactants, wherein the alkylamine and hydroxy-alkylamine have a chain length of from 1 to 5 carbon atoms, the composition is substantially free of alkali metal ions, and the alkylene polyamine polycarboxylic acid has the formula(HOOCCH.sub.2).sub.2 N[(CH.sub.2).sub.x NCH.sub.2 COOH].sub.y CH.sub.2 COOHwherein x and y may each independently be from 1 to 4.
摘要翻译： 提供特别有效溶解香草凝乳的水性清洁组合物，其在水溶液中包含次氮基三乙酸的铵，烷基胺或羟基 - 烷基胺盐，亚烷基多胺多元羧酸或其混合物，以及一种或多种非离子表面活性剂，其中 烷基胺和羟基 - 烷基胺具有1至5个碳原子的链长度，该组合物基本上不含碱金属离子，并且亚烷基多胺多元羧酸具有式（HOOCCH 2）2 N [（CH 2）x NCH 2 COOH] y CH 2 COOH，其中x和 y可各自独立地为1至4。
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