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    Ion exchange compositions
    132.
    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。

    Lamp having a lamp vessel made of quartz glass, quartz glass and method of preparing quartz glass
    134.
    发明授权
    Lamp having a lamp vessel made of quartz glass, quartz glass and method of preparing quartz glass 失效
    具有由石英玻璃制成的灯管的灯具，石英玻璃和制备石英玻璃的方法

    公开(公告)号：US4361779A

    公开(公告)日：1982-11-30

    申请号：US225959

    申请日：1981-01-19

    Applicant: Gerardus H. A. M. van der Steen ,  Eddy F. C. Van Hove

    Inventor： Gerardus H. A. M. van der Steen ,  Eddy F. C. Van Hove

    IPC: C03C3/06 ,  C03C4/08 ,  H01J61/30 ,  H01K1/28 ,  H01K1/32 ,  H01J17/16

    CPC classification number: C03C3/06 ,  H01J61/302 ,  H01K1/28 ,  C03C2201/34 ,  C03C2201/3429 ,  C03C2201/3447 ,  C03C2201/50 ,  C03C2201/54 ,  C03C2203/10

    Abstract: A quartz glass lamp vessel 1 or 21 is used in many types of lamps. Sometimes it is expedient to absorb a certain portion of the emission spectrum. In accordance with the prior art this is possible by including rare earth metal oxides in the quartz glass.The solubility of rare earth metal oxides in quartz glass is, however, limited.According to the invention, quartz glass is used which contains an alkali metal oxide and optionally, an alkaline earth metal oxide, in addition to a rare earth metal oxide. The alkali metal oxide increases the solubility of the rare earth metal oxide, so that rare earth metal oxides can be used in larger concentrations. This results in glasses which have a higher degree of absorption, from which lamp vessels can be produced.

    Abstract translation: 在许多类型的灯中使用石英玻璃灯容器1或21。 有时吸收某一部分发射光谱是有利的。 根据现有技术，这可以通过在石英玻璃中包括稀土金属氧化物来实现。 然而，稀土金属氧化物在石英玻璃中的溶解度受到限制。 根据本发明，除了稀土金属氧化物之外，还使用含有碱金属氧化物和任选的碱土金属氧化物的石英玻璃。 碱金属氧化物增加了稀土金属氧化物的溶解度，使得稀土金属氧化物可以以较大的浓度使用。 这导致具有更高吸收程度的玻璃，可以从中制造灯管。

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