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    Fixation by ion exchange of toxic materials in a glass matrix
    41.
    发明授权
    Fixation by ion exchange of toxic materials in a glass matrix 失效
    通过玻璃基质中有毒物质的离子交换固定

    公开(公告)号：US4469628A

    公开(公告)日：1984-09-04

    申请号：US370437

    申请日：1982-04-21

    Applicant: Catherine J. Simmons ,  Joseph H. Simmons ,  Pedro B. Macedo ,  Theodore A. Litovitz

    Inventor： Catherine J. Simmons ,  Joseph H. Simmons ,  Pedro B. Macedo ,  Theodore A. Litovitz

    IPC: B01D15/00 ,  B01J39/02 ,  B01J39/10 ,  B01J39/14 ,  C02F1/42 ,  G21F9/12 ,  G21F9/16 ,  G21F9/30 ,  C09K3/00 ,  C09K11/04

    CPC classification number: C03C1/002 ,  B01J39/14 ,  C03C1/026 ,  C03C11/005 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/12 ,  G21F9/305 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/23 ,  C03C2201/3435 ,  C03C2201/40 ,  C03C2201/50

    Abstract: This invention relates to the immobilization of toxic, e.g., radioactive, materials in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are incorporated into a glass or silica gel matrix, having alkali metal, Group Ib metal and/or ammonium cations bonded to silicon atoms of said glass or silica gel through divalent oxygen linkages, by a process which involves the ion exchange of said toxic or radioactive cations with said alkali metal, Group Ib metal and/or ammonium cations to bind said toxic or radioactive cations to silicon atoms of said glass or silica gel through said silicon-bonded divalent oxygen linkages. Thereafter, the resulting glass or silica gel now characterized by toxic or radioactive cations bonded to silicon atoms through divalent oxygen linkages can be stored, or packaged in suitable containers, or disposed of as by burial, and/or sintered to collapse the pores thereof.

    Abstract translation: 本发明涉及将硅酸盐玻璃或硅胶基质中的有毒的，例如放射性物质固定在极长时间内。 将含有放射性阳离子的放射性废物（其可以是液体的形式）或溶解或分散在液体或气体中的固体的有毒材料掺入玻璃或硅胶基质中，其具有碱金属，Ib族金属和/或 通过涉及所述有毒或放射性阳离子与所述碱金属，第Ib族金属和/或铵阳离子离子交换以结合所述有毒或放射性的方法的方法，通过二价氧键与所述玻璃或硅胶的硅原子键合的铵阳离子 通过所述硅键合的二价氧键与所述玻璃或硅胶的硅原子的阳离子。 此后，所得到的玻璃或硅胶的特征在于通过二价氧键与硅原子键合的有毒或放射性阳离子，可以储存或包装在合适的容器中，或通过埋置和/或烧结来处理以使其孔隙折叠。

    Process for increasing the annealing point of 96% silica glass
    42.
    发明授权
    Process for increasing the annealing point of 96% silica glass 失效
    提高96％石英玻璃退火点的工艺

    公开(公告)号：US4116657A

    公开(公告)日：1978-09-26

    申请号：US794062

    申请日：1977-05-05

    Applicant: Thomas H. Elmer

    Inventor： Thomas H. Elmer

    IPC: C03C3/06 ,  C03C19/00 ,  C03B25/00 ,  C03C15/00

    CPC classification number: C03C3/06 ,  C03C2201/10 ,  C03C2201/50 ,  C03C2203/52

    Abstract: A process for producing transparent high-annealing-point 96% silica glass comprising the steps of depositing a carbon film on the pore walls of the glass, heating the glass and film under non-oxidizing conditions, and removing the carbon film by oxidation, is described.

    Abstract translation: 一种生产透明高退火点96％二氧化硅玻璃的方法，包括以下步骤：在玻璃的孔壁上沉积碳膜，在非氧化条件下加热玻璃和薄膜，并通过氧化除去碳膜，是 描述。

    Phase separatable borosilicate glass compositions
    43.
    发明授权
    Phase separatable borosilicate glass compositions 失效
    相分离硼硅酸盐玻璃组合物

    公开(公告)号：US3972720A

    公开(公告)日：1976-08-03

    申请号：US562064

    申请日：1975-03-26

    Applicant: Joseph J. Hammel ,  Ties Allersma

    Inventor： Joseph J. Hammel ,  Ties Allersma

    IPC: C03C3/06 ,  C03C3/064 ,  C03C3/089 ,  C03C3/091 ,  C03C11/00 ,  C03C15/00 ,  C03C3/08 ,  C03C3/04 ,  C03C3/30

    CPC classification number: B01D71/04 ,  B01D67/0058 ,  C03C11/005 ,  C03C15/00 ,  C03C3/06 ,  C03C3/064 ,  C03C3/089 ,  C03C3/091 ,  C03C2201/10 ,  C03C2201/32 ,  C03C2201/50 ,  C03C2201/80 ,  C03C2203/00

    Abstract: Thermally stable, mechanically strong microporous glass articles with large pore volumes, surface areas, and varying pore sizes, and methods for making such articles are disclosed. In particle form, such as beads, the microporous glass articles are useful as catalyst supports in applications such as petroleum catalytic refiners, chemical processes and motor vehicle catalytic mufflers. The mechanical strength and the dimensional stability of the microporous glass articles at elevated temperatures can be improved if the articles are preshrunk, such as by brief exposure to high temperatures, before their intended use, and can be improved even further if treated with certain metal oxides.

    Abstract translation: 公开了具有大孔体积，表面积和不同孔径的热稳定的机械强度微孔玻璃制品及其制造方法。 在颗粒形式如珠粒中，微孔玻璃制品可用作催化剂载体，例如石油催化精炼机，化学工艺和汽车催化消声器。 如果在预期的使用之前，如在短时间暴露于高温下预制物品，则可以提高微孔玻璃制品在高温下的机械强度和尺寸稳定性，并且如果用某些金属氧化物 。

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