利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

32 条记录 (耗时 0.01 秒)

    Removal of chromium, chromate, molybdate and zinc
    1.
    发明授权
    Removal of chromium, chromate, molybdate and zinc 失效
    去除铬，铬酸盐，钼酸盐和锌

    公开(公告)号：US4057494A

    公开(公告)日：1977-11-08

    申请号：US705171

    申请日：1976-07-14

    申请人： Randhir C. Chopra

    发明人： Randhir C. Chopra

    IPC分类号： B01D15/02 ,  B01J47/10 ,  C02B1/42 ,  C02B1/56

    CPC分类号： B01J47/10 ,  B01D15/02

    摘要： Trivalent chromium, zinc, hexavalent chromate and molybdate can be removed from a fluid by contacting the fluid with an ion exchange resin bed comprising a mixture of a weak base anion exchange resin and a weak or strong acid cation exchange resin in hydrogen form to remove the metal values.

    摘要翻译： 可以通过使流体与含有弱碱性阴离子交换树脂和弱酸或阳离子阳离子交换树脂的混合物的离子交换树脂床接触氢气形式来从流体中除去三价铬，锌，六价铬酸盐和钼酸盐，以除去 金属价值。

    Method for preparation of cation exchangers by substitution of hydrophilic polymeric gels of crosslinked hydroxyalkyl acrylates and hydroxyalkylacrylamides
    2.
    发明授权
    Method for preparation of cation exchangers by substitution of hydrophilic polymeric gels of crosslinked hydroxyalkyl acrylates and hydroxyalkylacrylamides 失效
    通过用交联的丙烯酸交联羟烷基酯和羟烷基丙烯酰胺的亲水聚合物凝胶代替来制备阳离子交换剂的方法

    公开(公告)号：US3991018A

    公开(公告)日：1976-11-09

    申请号：US545017

    申请日：1975-01-29

    申请人： Petr Strop ,  Otakar Mikes ,  Jiri Coupek

    发明人： Petr Strop ,  Otakar Mikes ,  Jiri Coupek

    IPC分类号： B01J20/281 ,  B01J20/285 ,  B01J39/20 ,  C08F8/00 ,  C08F8/06 ,  C08F8/14 ,  C08F8/18 ,  C08F8/32 ,  C08F8/34 ,  C08F8/40 ,  C08F8/42 ,  G01N30/88 ,  C08F8/10 ,  C02B1/42 ,  C08F216/02

    CPC分类号： B01J39/20 ,  C08F8/00

    摘要： The invention relates to a method for preparation of hydrophilic cation exchangers by a chemical modification of crosslinked copolymeric gels containing reactive hydroxyl groups and based on hydroxyalkyl, oligoglycol or polyglycol acrylates and methacrylates and hydroxyalkylacrylamides or hydroxyalkylmethacrylamides. The modification is carried out in reactions of hydroxyl groups with halogenalkane acids and their derivatives, anhydrides and halides of dicarboxylic acids or carbodiimides. If the modification agent contains several reactive groups, the remaining functional groups after modification may be allowed to react with dicarboxylic, polycarboxylic, hydroxycarboxylic or aminocarboxylic acids, or phosphoric or sulfuric acid, halogenoepoxides, diepoxides or polyepoxides. The hydroxyl groups can be also modified by oxidation to carboxylic groups by common oxidants. The gels used for modification may also contain alkoxide reactive groups and they have generally the homogeneous, semiheterogeneous or macroporous character. The ion-exchanging gels prepared in this way are suitable for sorption and chromatographic separations, especially for separation of sensitive biological materials.

    摘要翻译： 本发明涉及通过化学修饰含有反应性羟基并且基于羟基烷基，低聚乙二醇或聚二醇丙烯酸酯和甲基丙烯酸酯和羟烷基丙烯酰胺或羟烷基甲基丙烯酰胺的交联共聚物凝胶来制备亲水性阳离子交换剂的方法。 该改性在羟基与卤代烷酸及其衍生物，二羧酸或碳二亚胺的酸酐和卤化物的反应中进行。 如果改性剂含有若干反应性基团，则可以使其余的官能团与二羧酸，多羧酸，羟基羧酸或氨基羧酸，或磷酸或硫酸，卤代环氧化物，二环氧化物或聚环氧化物反应。 羟基也可以通过常见的氧化剂氧化成羧基而被修饰。 用于改性的凝胶也可以含有醇盐反应性基团，它们通常具有均相，半异构或大孔性质。 以这种方式制备的离子交换凝胶适用于吸附和色谱分离，特别是用于分离敏感的生物材料。

    Method and system for purifying liquid
    6.
    发明授权
    Method and system for purifying liquid 失效
    液体净化方法及系统

    公开(公告)号：US3985648A

    公开(公告)日：1976-10-12

    申请号：US483801

    申请日：1974-06-27

    申请人： Angelo J. Casolo

    发明人： Angelo J. Casolo

    IPC分类号： B01J39/04 ,  B01J45/00 ,  B01J47/04 ,  C02F9/00 ,  C02B1/42 ,  C02B1/56

    CPC分类号： C02F9/00 ,  B01J39/04 ,  B01J45/00 ,  B01J47/04 ,  C02F1/001 ,  C02F1/283 ,  C02F1/66 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2101/105 ,  C02F2101/18 ,  C02F2101/20 ,  C02F2101/203 ,  C02F2101/22 ,  C02F2301/043 ,  Y10S210/904 ,  Y10S210/906 ,  Y10S210/911 ,  Y10S210/912 ,  Y10S210/913

    摘要： A method and system combining filtration and ion-exchange structures for removing contaminants from liquids. In overall concept, contaminated liquid is passed through filtering mediums to remove particulate matter from the incoming contaminated liquid. Organics are removed from the liquid by passage through adsorbent non-ionic type resins. The liquid is then passed through strong acid cation exchange resins, weak base anion exchange resins, weak acid cation exchange resins, and strong base anion exchange resins arranged in a predetermined location in the liquid flow path to provide optimized contaminant removal. One of the optimization techniques is through the pH adjustment of the liquid at predetermined points in the flow path. Additionally, the liquid to be purified is passed through mixed bed polisher resins as well as chelation resins to provide a final substantially contaminant free liquid which is returned to use in a closed loop fashion.

    摘要翻译： 一种组合过滤和离子交换结构以从液体中除去污染物的方法和系统。 在总体概念中，污染的液体通过过滤介质以从进入的污染液体中除去颗粒物质。 有机物通过吸附剂非离子型树脂从液体中除去。 然后将液体通过强酸性阳离子交换树脂，弱碱性阴离子交换树脂，弱酸阳离子交换树脂和布置在液体流路中的预定位置的强碱性阴离子交换树脂，以提供优化的污染物去除。 优化技术之一是通过在流路中的预定点处的液体的pH调节。 此外，待纯化的液体通过混合床抛光树脂以及螯合树脂，以提供最终基本上无污染的液体，其返回以闭环方式使用。

    Polyvinyl (dialkylthiocarbamoylthio)acetate resin, method for producing same and heavy metals-removing agent comprising same
    9.
    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

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

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

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

    CPC分类号： C02F1/285 ,  B01J20/26 ,  C02F1/283 ,  C08F8/34 ,  C22B3/24 ,  Y02P10/234

    摘要： 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.

    摘要翻译： 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。

    Process for the liquid phase oxidation of organic substance-containing effluents
    10.
    发明授权
    Process for the liquid phase oxidation of organic substance-containing effluents 失效
    含有机物质污水的液相氧化工艺

    公开(公告)号：US4094780A

    公开(公告)日：1978-06-13

    申请号：US713845

    申请日：1976-08-12

    申请人： Yasuto Iwai ,  Masayoshi Okabe ,  Naotoshi Seki ,  Atsuhiko Hiai ,  Seiya Iguchi

    发明人： Yasuto Iwai ,  Masayoshi Okabe ,  Naotoshi Seki ,  Atsuhiko Hiai ,  Seiya Iguchi

    IPC分类号： C02F1/72 ,  C02F11/08 ,  C02B1/34 ,  C02B1/42

    CPC分类号： C02F1/725 ,  C02F11/08 ,  Y10S210/911

    摘要： A process for the liquid phase oxidation of an organic substance-containing effluent which comprises subjecting said effluent to a liquid phase oxidation treatment in the presence of a copper catalyst at a copper ion concentration of 50-5000 ppm and also in presence of an ammonium ion concentration of five or more times the copper ion concentration thereby to oxidize the organic substances in the effluent, and recovering the copper catalyst from the treated effluent for reuse. The recovery of the copper catalyst may be effected either by a process in which the copper catalyst is separated as a precipitate or by a process using a resin adsorption.

    摘要翻译： 一种含有机物质流出物的液相氧化的方法，该方法包括在铜离子浓度为50-5000ppm的铜催化剂的存在下以及在铵离子存在下对所述流出物进行液相氧化处理 浓度为铜离子浓度的五倍或更多倍，从而氧化流出物中的有机物质，并从经处理的废液中回收铜催化剂用于再利用。 铜催化剂的回收可以通过其中铜催化剂作为沉淀物分离的方法或通过使用树脂吸附的方法进行。