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43 条记录 (耗时 0.04 秒)

    Semipermeable thin-film membranes comprising siloxane, alkoxysilyl and aryloxysilyl oligomers and copolymers
    33.
    发明授权
    Semipermeable thin-film membranes comprising siloxane, alkoxysilyl and aryloxysilyl oligomers and copolymers 失效
    包含硅氧烷，烷氧基甲硅烷基和芳氧基甲硅烷基低聚物和共聚物的半透膜薄膜膜

    公开(公告)号：US4781733A

    公开(公告)日：1988-11-01

    申请号：US74247

    申请日：1987-07-16

    申请人： Walter C. Babcock ,  Dwayne T. Friesen

    发明人： Walter C. Babcock ,  Dwayne T. Friesen

    IPC分类号： B01D53/22 ,  B01D69/12 ,  B01D71/56 ,  B01D71/70 ,  C08G77/38

    CPC分类号： B01D69/125 ,  B01D71/56 ,  B01D71/70 ,  C08G77/38

    摘要： Novel semiperimeable membranes and thin film composite (TFC) gas separation membranes useful in the separation of oxygen, nitrogen, hydrogen, water vapor, methane, carbon dioxide, hydrogen sulfide, lower hydrocarbons, and other gases are disclosed. The novel semipermeable membranes comprise the polycondensation reaction product of two complementary polyfunctional compounds, each having at least two functional groups that are mutually reactive in a condensation polymerization reaction, and at least one of which is selected from siloxanes, alkoxsilyls and aryloxysilyls. The TFC membrane comprises a microporous polymeric support, the surface of which has the novel semipermeable film formed thereon, preferably by interfacial polymerization.

    摘要翻译： 公开了可用于分离氧，氮，氢，水蒸汽，甲烷，二氧化碳，硫化氢，低级烃和其它气体的新型半消泡膜和薄膜复合（TFC）气体分离膜。 新型半透膜包含两种互补多官能化合物的缩聚反应产物，每个化合物具有至少两个在缩聚反应中相互反应的官能团，并且其中至少一个选自硅氧烷，烷氧基甲硅烷基和芳氧基甲硅烷基。 TFC膜包括微孔聚合物载体，其表面上形成有新的半透膜，优选通过界面聚合。

    Selective and continuous removal of metal-ion contaminants from plating baths
    36.
    发明授权
    Selective and continuous removal of metal-ion contaminants from plating baths 失效
    从电镀浴中选择性和连续地去除金属离子污染物

    公开(公告)号：US4702838A

    公开(公告)日：1987-10-27

    申请号：US642419

    申请日：1984-08-20

    申请人： Walter C. Babcock ,  Dwayne T. Friesen

    发明人： Walter C. Babcock ,  Dwayne T. Friesen

    IPC分类号： C02F1/42 ,  C09K3/00 ,  C25D21/18 ,  B01D15/04

    CPC分类号： C25D21/18 ,  Y10S204/13

    摘要： A method is disclosed for the selective removal of metal ions from plating solutions comprising contacting the plating solutions with liquid organic complexing agents such as oximes or phosphoric acid esters or microporous material, preferably anisotropic, the microporous material being impregnated with such substances. The microporous material may be in various forms, including beads, fibers, sheets and gels. Copper, zinc and iron contaminants are effectively removed from nickel-plating solutions.

    摘要翻译： 公开了一种用于从电镀液中选择性去除金属离子的方法，包括使电镀溶液与诸如肟或磷酸酯或微孔材料的液体有机络合剂（优选各向异性）接触浸渍的微孔材料。 微孔材料可以是各种形式，包括珠粒，纤维，片和凝胶。 铜，锌和铁污染物有效地从镀镍溶液中除去。

    Recovery of ammoniacal copper with novel organogels
    39.
    发明授权
    Recovery of ammoniacal copper with novel organogels 失效
    用新的有机凝胶回收氨铜

    公开(公告)号：US4622344A

    公开(公告)日：1986-11-11

    申请号：US585977

    申请日：1984-03-05

    申请人： Walter C. Babcock ,  Mark E. Tuttle ,  James W. Brooke

    发明人： Walter C. Babcock ,  Mark E. Tuttle ,  James W. Brooke

    IPC分类号： B01J20/34 ,  B01J39/20 ,  B01J45/00 ,  C01G3/00 ,  C08J5/20 ,  C23F1/46

    CPC分类号： B01J39/20 ,  B01J45/00 ,  C01G3/003 ,  C22B3/24 ,  C22B3/42 ,  C23F1/46 ,  Y02P10/234

    摘要： There is disclosed novel copper ion-exchange media and processes for the recovery of cupric ion from ammoniacal copper solutions and for the recovery of spent printed circuit board etchant. The novel ion-exchange media comprise hydrophobic nonporous polymer plasticized and swollen with a monomeric organic liquid copper ion-exchange agent such as beta-diketones or hydroxyoximes. A novel copper ion-complexing agent, 1-n-octylphenyl-p-1,3-butanedione, is also disclosed. The processes essentially comprise contacting the ammoniacal cupric ion-containing solution or spent etchant with the novel copper ion-exchange media to extract copper in cupric ion form. Copper can be recovered therefrom by conventional methods such as acid stripping and electrowinning.

    摘要翻译： 公开了新颖的铜离子交换介质以及用于从氨铜溶液回收铜离子和回收废印刷电路板蚀刻剂的方法。 新型离子交换介质包括用单体有机液体铜离子交换剂（例如β-二酮或羟基肟）增塑和溶胀的疏水性无孔聚合物。 还公开了一种新型铜离子络合剂1-正辛基苯基 - 对1,3-丁二酮。 该方法基本上包括使含氨基铜离子的溶液或废蚀刻剂与新的铜离子交换介质接触以提取铜离子形式的铜。 铜可以通过常规方法如酸剥离和电解提取来回收。