Apparatus for producing and casting liquid silicon
    23.
    发明授权
    Apparatus for producing and casting liquid silicon 失效
    用于生产和浇铸液态硅的设备

    公开(公告)号:US4272488A

    公开(公告)日:1981-06-09

    申请号:US075644

    申请日:1979-09-14

    Abstract: The method and apparatus for producing liquid silicon of high purity and for casting silicon. Hydrogen and a hydrogenated silane in gaseous state are mixed, preferably with a source of a small amount of oxygen, in a heated chamber producing the liquid silicon, with the exhaust gases bubbling out of the melt under a baffle. The chamber for the melt of liquid silicon preferably is lined with silicon dioxide. The liquid silicon may be used in making high purity vitreous silica and may be used in making castings of silicon. In making castings, the liquid silicon is accumulated in a second chamber and is periodically drawn from the second chamber into a third chamber which contains the mold for the casting.

    Abstract translation: 用于生产高纯度硅和硅铸造液态硅的方法和装置。 氢气和气态的氢化硅烷在产生液体硅的加热室中混合,优选用少量氧气源,废气在挡板下方从熔体中冒出。 用于液体硅熔体的室优选用二氧化硅衬里。 液硅可用于制造高纯度二氧化硅玻璃,可用于制造硅铸件。 在制造铸件时,液态硅积聚在第二腔室中,并且从第二腔室周期性地拉入包含用于铸造的模具的第三腔室。

    Process for producing liquid silicon
    24.
    发明授权
    Process for producing liquid silicon 失效
    液硅生产工艺

    公开(公告)号:US4176166A

    公开(公告)日:1979-11-27

    申请号:US800191

    申请日:1977-05-25

    Abstract: The method and apparatus for producing liquid silicon of high purity and for casting silicon. Hydrogen and a hydrogenated silane in gaseous state are mixed, preferably with a source of a small amount of oxygen, in a heated chamber producing the liquid silicon, with the exhaust gases bubbling out of the melt under a baffle. The chamber for the melt of liquid silicon preferably is lined with silicon dioxide. The liquid silicon may be used in making high purity vitreous silica and may be used in making castings of silicon. In making castings, the liquid silicon is accumulated in a second chamber and is periodically drawn from the second chamber into a third chamber which contains the mold for the casting.

    Abstract translation: 用于生产高纯度硅和硅铸造液态硅的方法和装置。 氢气和气态的氢化硅烷在产生液体硅的加热室中混合,优选用少量氧气源,废气在挡板下方从熔体中冒出。 用于液体硅熔体的室优选用二氧化硅衬里。 液硅可用于制造高纯度二氧化硅玻璃,可用于制造硅铸件。 在制造铸件时,液态硅积聚在第二腔室中,并且从第二腔室周期性地拉入包含用于铸造的模具的第三腔室。

    Method for making vitreous silica
    25.
    发明授权
    Method for making vitreous silica 失效
    二氧化硅制造方法

    公开(公告)号:US4054641A

    公开(公告)日:1977-10-18

    申请号:US684108

    申请日:1976-05-07

    Abstract: Method and apparatus for making vitreous silica of high purity including producing a melt of liquid silicon in a first chamber, mixing the liquid silicon with carbon dioxide in an upper zone of a second chamber to produce silicon monoxide, mixing the silicon monoxide with oxygen in a lower zone of the second chamber producing silicon dioxide in gaseous form, condensing the silicon dioxide on the wall of the second chamber, and withdrawing the resultant tube of vitreous silica from the lower end of the second chamber. The apparatus is lined with silica to prevent introduction of impurities. The liquid silicon is produced by mixing hydrogen and trichlorosilane.

    Abstract translation: 用于制造高纯度的二氧化硅玻璃的方法和设备,包括在第一室中产生液态硅熔体,在第二室的上部区域中混合液体硅与二氧化碳以产生一氧化硅,将一氧化硅与氧气混合在一起 第二室的下部区域产生气态二氧化硅,将二氧化硅冷凝在第二室的壁上,并从第二室的下端抽出所得到的二氧化硅管。 该装置衬有二氧化硅以防止引入杂质。 液态硅是通过混合氢气和三氯硅烷来生产的。

    Phase separatable borosilicate glass compositions
    26.
    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

    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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