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    Selective removal of copper or nickel from complexing agents in aqueous solution
    171.
    发明授权
    Selective removal of copper or nickel from complexing agents in aqueous solution 失效
    从水溶液中的络合剂中选择性去除铜或镍

    公开(公告)号：US4303704A

    公开(公告)日：1981-12-01

    申请号：US150924

    申请日：1980-05-19

    Applicant: Constantine I. Courduvelis ,  George C. Gallager

    Inventor： Constantine I. Courduvelis ,  George C. Gallager

    IPC: B01J45/00 ,  C01G1/00 ,  C23C18/16

    CPC classification number: C23C18/1617 ,  B01J45/00 ,  C22B3/42 ,  Y02P10/234 ,  Y10S210/912

    Abstract: A method is provided for selectively separating and removing complexed heavy metal ions, preferably copper or nickel, from complexing agents in aqueous solution and removing substantially all heavy metal ions while leaving complexing agent in said solution. In preferred embodiments, complexed copper or complexed nickel is selectively removed from aqueous effluent from electroless plating systems by passage through a bed of chelating ion-exchange resin having an iminodiacetic acid functionality. Substantially all copper or nickel will be removed from solution and retained in the resin bed and the complexing agent will pass through for conventional waste treatment or disposal. The copper or nickel is recovered by elution from the resin bed with an acid solution and may, if desired, be precipitated by addition of sodium hydroxide or the like and subsequently separated for recovery or disposal.An improved process for electroless disposition of copper, or nickel, which facilitates waste treatment or recovery of residual complexed copper or nickel ions from plating or effluent solutions is likewise provided in accordance with the invention.

    Abstract translation: 提供了一种方法，用于从复合剂在水溶液中选择性分离和去除络合的重金属离子，优选铜或镍，并且除去基本上所有的重金属离子，同时在所述溶液中留下络合剂。 在优选的实施方案中，通过穿过具有亚氨基二乙酸功能性的螯合离子交换树脂床，从化学镀系统的含水流出物中选择性地除去络合的铜或络合的镍。 基本上所有的铜或镍将从溶液中除去并保留在树脂床中，络合剂将通过以进行常规废物处理或处置。 通过用酸溶液从树脂床中洗脱回收铜或镍，如果需要，可以通过加入氢氧化钠等沉淀，随后分离回收或处理。 根据本发明，同样提供了一种改进的铜或镍的化学处理方法，其有助于废弃处理或从电镀或流出液中回收残留的复合铜或镍离子。

    Polyvinyl (dialkylthiocarbamoylthio)acetate resin, method for producing same and heavy metals-removing agent comprising same
    172.
    发明授权
    Polyvinyl (dialkylthiocarbamoylthio)acetate resin, method for producing same and heavy metals-removing agent comprising same 失效
    聚乙烯基（二烷基硫代氨基甲酰硫基）乙酸酯树脂，其制备方法和包含其的重金属去除剂

    公开(公告)号：US4239865A

    公开(公告)日：1980-12-16

    申请号：US849923

    申请日：1977-11-09

    Applicant: Ryohkichi Tarao ,  Kanji Kaku ,  Masaki Hayashi ,  Takao Nakamura ,  Shigeo Ohishi

    Inventor： Ryohkichi Tarao ,  Kanji Kaku ,  Masaki Hayashi ,  Takao Nakamura ,  Shigeo Ohishi

    IPC: C08F8/00 ,  B01J20/26 ,  B01J45/00 ,  C02F1/28 ,  C08F8/34 ,  C02B1/42

    CPC classification number: C02F1/285 ,  B01J20/26 ,  C02F1/283 ,  C08F8/34 ,  C22B3/24 ,  Y02P10/234

    Abstract: A new polyvinyl(dialkylthiocarbamoylthio)acetate resin expressed by the formula ##STR1## (wherein R.sub.1 and R.sub.2 each represent hydrogen atom or an alkyl group of C.sub.1 -C.sub.5) is provided.Said resin has a superior heavy metals-removing performance and is insoluble in organic solvents and hence very useful as an agent for removing heavy metals.Said resin is prepared by reacting a tetraalkylthiuramdisulfide expressed by a formula ##STR2## (wherein R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represent hydrogen atom or an alkyl group of C.sub.1 -C.sub.5) with a vinyl acetate polymer on heating in a solvent.Said resin is used as an agent for removing heavy metals, alone or in admixture with an auxiliary agent such as active carbon.

    Abstract translation: 提供了由式（IMAGE）表示的新的聚乙烯基（二烷基硫代氨基甲酰硫基）乙酸酯树脂（其中R1和R2各自表示氢原子或C1-C5的烷基）。 所述树脂具有优异的重金属去除性能，并且不溶于有机溶剂，因此作为除去重金属的试剂非常有用。 所述树脂通过在溶剂中加热使由式（IMAGE）表示的四烷基秋兰姆二硫化物（其中R 3，R 4，R 5和R 6各自表示氢原子或C 1 -C 5烷基）与乙酸乙烯酯聚合物反应制备。 所述树脂用作单独或与助剂如活性炭混合的重金属去除剂。

    Aminoalkylation of aromatic polymers using aldehyde, diacylamine and strong acid catalyst
    173.
    发明授权
    Aminoalkylation of aromatic polymers using aldehyde, diacylamine and strong acid catalyst 失效
    使用醛，二酰胺和强酸催化剂的芳族聚合物的氨基烷基化

    公开(公告)号：US4232125A

    公开(公告)日：1980-11-04

    申请号：US13956

    申请日：1979-02-22

    Applicant: Gary R. Buske

    Inventor： Gary R. Buske

    IPC: B01J41/14 ,  B01J45/00 ,  C08F8/30 ,  C08C19/22

    CPC classification number: B01J45/00 ,  B01J41/14 ,  C08F8/30

    Abstract: A cross-linked polymer of a monovinylidene aromatic compound is diacylaminoalkylated by contacting said polymer with an aldehyde and a diacylamine in the presence of an acid catalyst. The resulting diacylaminoalkylated polymer is readily hydrolyzed to an aminoalkylated form which is useful as a weak base ion exchange resin and as a precursor in the preparation of other ion exchange resins. For example, reacting a cross-linked polystyrene with paraformaldehyde and phthalimide in the presence of sulfuric acid and subsequently hydrolyzing the reaction product forms a cross-linked poly(aminomethyl styrene) useful as a weak base ion exchange resin and as a precursor in the preparation of strong base or chelate type resins.

    Abstract translation: 通过在酸催化剂的存在下使所述聚合物与醛和二酰胺接触，单亚乙烯基芳族化合物的交联聚合物是二酰基氨基烷基化的。 所得的二酰基氨基烷基化聚合物容易水解成氨基烷基化形式，其可用作弱碱离子交换树脂，并用作制备其它离子交换树脂的前体。 例如，使交联聚苯乙烯与多聚甲醛和邻苯二甲酰亚胺在硫酸存在下反应，随后水解反应产物形成可用作弱碱离子交换树脂的交联聚（氨基甲基苯乙烯），并作为制备中的前体 的强碱或螯合型树脂。

    Mercury and copper selective metal chelating resins
    177.
    发明授权
    Mercury and copper selective metal chelating resins 失效
    汞和铜选择性金属螯合树脂

    公开(公告)号：US4190709A

    公开(公告)日：1980-02-26

    申请号：US908820

    申请日：1978-05-23

    Applicant: Jonathan H. Hodgkin

    Inventor： Jonathan H. Hodgkin

    IPC: C08G14/00 ,  B01D15/04 ,  B01J45/00 ,  C01G3/00 ,  C01G13/00 ,  C08G8/28 ,  C08G14/06

    CPC classification number: C01G3/003 ,  B01J45/00 ,  C01G13/003 ,  C08G14/06 ,  C22B3/42 ,  Y02P10/234

    Abstract: Mercury and copper ions may be removed very selectively from aqueous solutions by means of a metal-chelating resin consisting of a polymer produced by the condensation of a phenolic component comprising one or more phenols, formaldehyde, and a diamino component comprising one or more di-(secondary amino) compounds under neutral conditions. The resin is prepared by condensing approximately equimolar quantities of a phenolic component comprising one or more phenols, and a diamino component comprising one or more di-(secondary amino) compounds with approximately twice the molar quantity of formaldehyde under Mannich reaction conditions.

    Abstract translation: 汞和铜离子可以通过金属螯合树脂非常选择性地从水溶液中除去，所述金属螯合树脂由通过包含一种或多种酚，甲醛和二氨基组分的酚类组分缩合制备的聚合物，所述酚组分包含一个或多个二 - （仲氨基）化合物。 在曼尼希反应条件下，将大约等摩尔量的包含一种或多种酚的酚类组分和包含一种或多种二 - （仲氨基）化合物的二氨基组分与大约两倍摩尔量的甲醛缩合制备树脂。

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