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    System for extracting soluble heavy metals from liquid solutions
    9.
    发明授权
    System for extracting soluble heavy metals from liquid solutions 失效
    从液体溶液中提取可溶性重金属的系统

    公开(公告)号：US5695882A

    公开(公告)日：1997-12-09

    申请号：US516288

    申请日：1995-08-17

    Applicant: Edward Rosenberg

    Inventor： Edward Rosenberg

    IPC: B01D15/00 ,  B01D15/08 ,  B01J20/26 ,  B01J20/32 ,  B01J39/08 ,  B01J45/00 ,  C02F1/28 ,  C02F1/42 ,  C02F9/00 ,  C22B3/42 ,  B32B1/10

    CPC classification number: C02F9/00 ,  B01J20/3204 ,  B01J20/3272 ,  B01J20/328 ,  B01J45/00 ,  C02F1/42 ,  C22B3/42 ,  C02F2101/20 ,  C02F2303/16 ,  Y02P10/234 ,  Y10T428/2995 ,  Y10T428/31663

    Abstract: A process for removing ions of dissolved heavy metals and complex heavy metals comprises provides a treatment zone in which is contained an extraction material having an activated surface that has an affinity for heavy metal ions and complex heavy metal ions. The activated surface is the reaction product of a polyamine with a covalently anchored trifunctional hydrocarbyl silyl that yields non-crosslinked amino groups to which functional chelator groups can be covalently attached. The activated surface of the extraction material is formed by first hydrating the extraction material surface and then silanizing the hydrated surface with a short chain trifunctional silane having a hydrocarbon substituent containing 1-6 carbon atoms and a terminal leaving group, and then reacting a polyamine with the hydrocarbylsilyl from the silanization of the hydrated surface so as to form an aminohydrocarbyl polymer covalently bound to the extraction material surface. The extraction material surface yields amino groups that are available for bonding to chelator groups. As thus formed, the polymer may be alkylated with a carboxyl or sulfur containing alkylating reagent on at least some of the amino groups to enhance and specialize the chelating ability of the extraction material's activated surface.

    Abstract translation: 一种去除溶解的重金属和复杂重金属的离子的方法包括提供处理区，其中含有具有对重金属离子和复合重金属离子具有亲和性的活化表面的提取材料。 活化表面是多胺与共价锚定的三官能烃基甲硅烷基的反应产物，其产生可交联附着功能性螯合剂基团的非交联氨基。 萃取材料的活化表面通过首先使萃取材料表面水合，然后用具有1-6个碳原子的烃取代基和末端离去基团的短链三官能硅烷硅烷化水合表面，然后使多胺与 来自水合表面的硅烷化的烃基甲硅烷基，以形成共价结合到提取材料表面的氨基烃基聚合物。 提取物表面产生可用于与螯合剂基团结合的氨基。 如此形成的，聚合物可以在至少一些氨基上用含羧基或硫的烷基化试剂进行烷基化，以提高和专门提取萃取材料的活化表面的螯合能力。

    Ion exchange compositions
    10.
    发明授权
    Ion exchange compositions 失效
    离子交换组合物

    公开(公告)号：US4902426A

    公开(公告)日：1990-02-20

    申请号：US196904

    申请日：1988-05-20

    Applicant: Pedro B. Macedo ,  Theodore A. Litovitz ,  Hamid Hojaj

    Inventor： Pedro B. Macedo ,  Theodore A. Litovitz ,  Hamid Hojaj

    IPC: B01J39/08 ,  C01F17/00 ,  C03C11/00 ,  G21F9/12

    CPC classification number: C03C23/0095 ,  B01J39/085 ,  C01F17/0006 ,  C03C1/002 ,  C03C11/005 ,  C03C12/00 ,  C03C14/004 ,  C03C21/001 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  C03C3/091 ,  C03C3/093 ,  C03C8/14 ,  G21F9/12 ,  C03C2201/10 ,  C03C2201/32 ,  C03C2201/40 ,  C03C2201/50 ,  Y10S423/14

    Abstract: The present invention comprises a process for separating rare earth ions or actinide ions or mixtures thereof in solution by passing the solution through an ion exchange material to separate the rare earths or actinides or mixtures thereof. The ion exchange material has a surface area of about 5-1500 m.sup.2 /g. The ion exchange material is impregnated with a liquid containing alkali metal cations, Group Ib metal cations, ammonium cations, organic amines or mixtures thereof, at a pH range above about 9. A plurality of fractions of the solution is collected as the solution passes through the ion exchange material, preferably in a column. This process is particularly preferred for separating rare earth ions and especially lanthanum and neodymium. It is particularly preferred to purify lanthanum to contain less than 0.1 ppm, preferably less than 0.01 ppm, of neodymium. In another embodiment, the present invention comprises a method of producing a porous silicate glass containing at least one transition metal oxide additive selected from a group consisting of the bottom two rows of Group VIII of the Periodic Table. This method comprises preparing a base glass from a melt which contains 40-80 mol percent of silica and up to 10 mol percent of one or more transition metal oxide additives selected from said group or of precursors of said oxide additives, separating said base glass by heat treatment into at least a soluble phase and an insoluble phase, leaching out the soluble phase. In yet another embodiment, the present invention comprises an ion exchange material consisting of a porous glass or silica gel including at least about 0.2 mol percent of a transition metal oxide or hydrous metal oxide and containing at least 0.3 mol percent of alkali metal cation, Group Ib metal cation, ammonium, organic amines, or mixtures thereof.

    Abstract translation: 本发明包括通过使溶液通过离子交换材料以分离稀土或锕系元素或其混合物来分离稀土离子或锕系离子或其混合物的方法。 离子交换材料具有约5-1500m 2 / g的表面积。 离子交换材料在高于约9的pH范围内用含有碱金属阳离子，Ib族金属阳离子，铵阳离子，有机胺或其混合物的液体浸渍。当溶液通过时，收集多个馏分的溶液 离子交换材料，优选在柱中。 该方法特别优选用于分离稀土离子，特别是镧和钕。 特别优选将镧纯化为含有小于0.1ppm，优选小于0.01ppm的钕。 在另一个实施方案中，本发明包括一种制备多孔硅酸盐玻璃的方法，所述多孔硅酸盐玻璃含有至少一种选自周期表的第八族的下部两行的过渡金属氧化物添加剂。 该方法包括从熔体制备基础玻璃，所述熔体包含​​40-80摩尔％的二氧化硅和至多10摩尔％的选自所述组或所述氧化物添加剂的前体的一种或多种过渡金属氧化物添加剂，将所述基础玻璃与 热处理成至少可溶相和不溶相，浸出可溶相。 在另一个实施方案中，本发明包括由多孔玻璃或硅胶组成的离子交换材料，其包含至少约0.2mol％的过渡金属氧化物或含水金属氧化物并且含有至少0.3mol％的碱金属阳离子 Ib金属阳离子，铵，有机胺或其混合物。

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