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    Glass-making method
    112.
    发明授权
    Glass-making method 失效
    制玻璃法

    公开(公告)号：US06250108B1

    公开(公告)日：2001-06-26

    申请号：US09108382

    申请日：1998-07-01

    Applicant: Hiroaki Kinoshita ,  Morinao Fukuoka

    Inventor： Hiroaki Kinoshita ,  Morinao Fukuoka

    IPC: C03B800

    CPC classification number: C03C1/006 ,  C03C3/06 ,  C03C2201/32 ,  C03C2201/34 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2203/26 ,  Y10S65/901

    Abstract: In a method of making a high-quality silica glass, a rare earth element that is a substance making a great contribution to the index of refraction is introduced therein together with aluminum for stabilizing the glass. An alkoxide of aluminum or its derivative is used as the starting material for preparing a boehmite sol. A salt of at least one element selected from rare earth elements or a solution in which the salt is dissolved and the boehmite sol are mixed with a silica sol, whereupon the sols are vitrified.

    Abstract translation: 在制造高质量二氧化硅玻璃的方法中，引入作为对折射率有很大贡献的物质的稀土元素与铝一起引入以稳定玻璃。 使用铝或其衍生物的醇盐作为勃姆石溶胶的制备原料。 选自稀土元素中的至少一种元素或其中溶解盐的溶液和勃姆石溶胶与硅溶胶混合的盐，随后将溶胶玻璃化。

    Yellow high silica glass
    114.
    发明授权
    Yellow high silica glass 失效
    黄色高硅胶玻璃

    公开(公告)号：US5300466A

    公开(公告)日：1994-04-05

    申请号：US82888

    申请日：1993-06-28

    Applicant: Thomas H. Elmer ,  Sheryl L. Hultman

    Inventor： Thomas H. Elmer ,  Sheryl L. Hultman

    IPC: C03C3/06 ,  C03C23/00 ,  C03C1/10

    CPC classification number: C03C23/0095 ,  C03C3/06 ,  C03C2201/32 ,  C03C2201/40

    Abstract: A yellow color by transmitted light is produced in a high silica glass by impregnating a porous, high silica glass with a solution of chromium and zinc salts and consolidating the glass under oxidizing conditions to dope the glass with chromium and zinc oxides, the chromium being predominantly in the hexavalent state. Optionally, an aluminum salt is included in the impregnating solution. The glass has particular utility as a filter for lighting purposes.

    Abstract translation: 通过在高二氧化硅玻璃中通过用铬和锌盐溶液浸渍多孔高硅石玻璃并在氧化条件下固化玻璃以用铬和锌氧化物掺杂玻璃来产生黄色的颜色，铬主要是 在六价状态。 任选地，浸渍溶液中包含铝盐。 该玻璃具有用作照明用途的过滤器的特殊用途。

    Ion exchange compositions
    115.
    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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