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    Silica materials
    2.
    发明授权
    Silica materials 失效
    二氧化硅材料

    公开(公告)号：US5869152A

    公开(公告)日：1999-02-09

    申请号：US609425

    申请日：1996-03-01

    Applicant: Luis A. Colon

    Inventor： Luis A. Colon

    IPC: C03C3/06 ,  C03C14/00 ,  B32B9/00

    CPC classification number: B01J20/287 ,  C03C14/008 ,  C03C3/06 ,  B01J2220/54 ,  C03C2201/60 ,  C03C2214/17 ,  G01N2030/484 ,  Y10T428/131 ,  Y10T428/1393 ,  Y10T428/2982 ,  Y10T428/2996

    Abstract: The present invention relates to silica materials and particles having surfaces which define an interior. The interior includes interior silicon atoms at least a portion of which is bonded to a substituted or unsubstituted alkyl moiety. In a preferred aspect of the present invention, the silica material also has surface silicon atoms to which are bonded substituted or unsubstituted alkyl moieties. A capillary tube coated on its inner surface with the silica material of the present invention is also disclosed. The silica materials of the present invention are resistant to degradation at high or low pH and are particularly useful as chromatographic stationary phases, especially for use in open tubular liquid chromatography and open tubular electrochromatography.

    Abstract translation: 本发明涉及二氧化硅材料和具有限定内部的表面的颗粒。 内部包括内部硅原子，其至少一部分键合到取代或未取代的烷基部分。 在本发明的优选方面，二氧化硅材料还具有与取代或未取代的烷基部分键合的表面硅原子。 还公开了在其内表面上涂覆有本发明的二氧化硅材料的毛细管。 本发明的二氧化硅材料在高或低pH下耐降解，特别适用于色谱固定相，特别适用于开放式管式液相色谱和开放式管式电色谱。

    GLASS/QUARTZ COMPOSITE SURFACE
    6.
    发明公开
    GLASS/QUARTZ COMPOSITE SURFACE 审中-公开

    公开(公告)号：US20240067556A1

    公开(公告)日：2024-02-29

    申请号：US18498729

    申请日：2023-10-31

    Applicant: Stone Composite Surfaces, Inc.

    Inventor： Alexander Luis Alvarez

    IPC: C03C3/06 ,  C03B19/09

    CPC classification number: C03C3/06 ,  C03B19/09 ,  C03C2201/60

    Abstract: A glass/quartz composite structure may comprise aggregate including glass grit, nano-glass crystals, and/or amorphous silica that may be produced from crystalline quartz. The aggregate may be in an amount greater than any other single material by weight of the composite structure, which may further include quartz powder and/or alumina as well as a binding resin. The glass/quartz composite structure may be devoid of crystalline silica. The structure may be formed into a 1.2-1.5 cm thick slab for countertops using standard cabinet perimeter support. The slab may be made by mixing the aggregate, the quartz powder and/or alumina, and the binding resin, pouring the mixture in a mold, and compacting the mixture in the mold. Specific natural mineral components, decorative chips, and/or wet mixture pieces may be added to the composite structure to provide aesthetics of specific natural stones.

    Fixation by anion exchange of toxic materials in a glass matrix
    9.
    发明授权
    Fixation by anion exchange of toxic materials in a glass matrix 失效
    通过玻璃基质中有毒物质的阴离子交换固定

    公开(公告)号：US4544499A

    公开(公告)日：1985-10-01

    申请号：US386215

    申请日：1982-06-07

    Applicant: Danh C. Tran ,  Pedro B. Macedo ,  Joseph H. Simmons ,  Catherine J. Simmons ,  Nicholas Lagakos

    Inventor： Danh C. Tran ,  Pedro B. Macedo ,  Joseph H. Simmons ,  Catherine J. Simmons ,  Nicholas Lagakos

    IPC: G21F9/30 ,  G21F9/36 ,  G21F9/16

    CPC classification number: C03C11/005 ,  C03C1/002 ,  C03C1/026 ,  C03C21/001 ,  C03C23/0095 ,  C03C3/06 ,  C03C3/061 ,  C03C3/089 ,  G21F9/305 ,  G21F9/36 ,  C03C2201/10 ,  C03C2201/20 ,  C03C2201/23 ,  C03C2201/3411 ,  C03C2201/3423 ,  C03C2201/3429 ,  C03C2201/40 ,  C03C2201/54 ,  C03C2201/60

    Abstract: This invention relates to the immobilization of toxic, e.g., radioactive materials, internally in a silicate glass or silica gel matrix for extremely long periods of time. Toxic materials, such as radioactive wastes containing radioactive anions, and in some cases cations, which may be in the form of liquids, or solids dissolved or dispersed in liquids or gases, are internally incorporated into a glass matrix, having hydrous organofunctionalsiloxy groups, e.g., hydrous aminoalkylsiloxy or carboxyorganosiloxy, bonded to silicon atoms of said glass and/or hydrous polyvalent metals bonded to silicon atoms of said glass through divalent oxygen linkages or otherwise immobilized therein, by a process which involves the ion exchange of said toxic, radioactive anions with hydroxyl groups attached to said organofunctionalsiloxy groups or with hydroxyl groups attached to the hydrous polyvalent metal. Thereafter, the resulting glass now characterized by a distribution of internally bonded or immobilized, toxic, radioactive anions can be packaged in suitable containers, and disposed of as by burial, and/or they can be sintered to collapse the pores thereof to disposal or for producing useful radiation sources. The porous glass or a porous silica gel having said silicon-bonded organofunctionalsiloxy groups and/or said hydrous polyvalent metal oxy groups, the pores of said glass or silica gel remaining open and uncollapsed, can be used advantageously as a backfill for an underground radioactive waste burial site and as overpack in the waste disposal container. Also included is a novel method for bonding the polyvalent metal to the porous silica glass or gel by substituting the protons of the silicon-bonded hydroxyl groups thereof with an alkali metal or ammonium cation followed by displacement of said cation with the non-radioactive polyvalent metal cation.

    Abstract translation: 本发明涉及在硅酸盐玻璃或硅胶基质中内部有毒的例如放射性物质固定极长时间。 含有放射性阴离子的放射性废物，以及在某些情况下，可能是液体形式的阳离子或溶解或分散在液体或气体中的固体的有毒材料内部加入到具有含水官能团的甲硅烷氧基的玻璃基质中，例如 ，含水氨基烷基甲硅烷氧基或羧基有机基甲硅烷氧基，通过涉及将所述有毒放射性阴离子与所述有机放射性阴离子的离子交换的方法，通过二价氧键键合到所述玻璃的硅原子和/或与所述玻璃的硅原子键合的含水多价金属， 连接到所述有机电致甲硅烷氧基基团的羟基或与水合多价金属连接的羟基的羟基。 此后，所得玻璃的特征在于内部结合或固定的，有毒的放射性阴离子的分布可以包装在合适的容器中，并通过埋置进行处理，和/或它们可以烧结以将其孔隙塌缩以处理或用于 生产有用的辐射源。 所述多孔玻璃或多孔硅胶具有所述与硅键合的有机铁氧基甲硅烷氧基和/或所述含水多价金属氧基，所述玻璃或硅胶的孔保持开放和未破裂，可有利地用作地下放射性废物的回填 垃圾处理容器内的包装物， 还包括一种通过用碱金属或铵阳离子取代与硅键合的羟基的质子，然后用非放射性多价金属置换所述阳离子来将多价金属键合到多孔石英玻璃或凝胶上的新方法 阳离子。

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