Granulated foamed glass and process for the production thereof
    52.
    发明授权
    Granulated foamed glass and process for the production thereof 失效
    颗粒状泡沫玻璃及其生产方法

    公开(公告)号:US4332907A

    公开(公告)日:1982-06-01

    申请号:US195197

    申请日:1980-06-06

    申请人: Otto A. Vieli

    发明人: Otto A. Vieli

    摘要: An expanded glass aggregate has a granulometry of 0.2 to 3 mm and 10.sup.6 to 10.sup.7 cavities filled with gas per cm.sup.3. The diameter of the larger cavities is substantially smaller than 0.1 mm. All or a majority of the cavities are closed cells having a similar size. The expanded glass aggregate may contain in addition up to 85% of concrete, lava and/or tuff. For the preparation, the raw material is ground into a flour, mixed with a blowing organic and/or inorganic material appropriate to hot release gas, and a semi-finished aggregate is formed with a diameter of the granules of 0.1 to 1.5 mm. This aggregate is heated in a vibrating or suspended furnace during 5 to 180 seconds at a temperature of 600.degree. to 900.degree. C. The expanded glass aggregate is removed away from the furnace before a significant number of small cavities formed during the blowing gather to form larger cavities.

    摘要翻译: PCT No.PCT / CH79 / 00128 Sec。 371日期:1980年6月6日 102(e)日期1980年6月2日PCT提交1979年10月4日PCT公布。 出版物WO80 / 00696 日期:1980年04月17日。膨胀玻璃聚集体具有0.2至3mm的粒度和106至107个填充有气体/ cm3的空腔。 较大腔体的直径大致小于0.1mm。 所有或大部分空腔是具有相似尺寸的闭孔。 膨胀玻璃骨料还可以含有高达85%的混凝土,熔岩和/或凝灰岩。 为了制备,将原料研磨成面粉,与适合于热释放气体的吹入有机和/或无机材料混合,形成直径为0.1〜1.5mm的半成品骨料。 该聚集体在600至900℃的温度下在振动或悬浮的炉中加热5至180秒。将膨胀的玻璃聚集体从炉中除去,然后在吹塑过程中形成大量的小孔形成 较大的腔体。

    Method of expanding metallurgical slag
    53.
    发明授权
    Method of expanding metallurgical slag 失效
    扩大冶金炉渣的方法

    公开(公告)号:US4179275A

    公开(公告)日:1979-12-18

    申请号:US906110

    申请日:1978-05-15

    摘要: Molten metallurgical slags are expanded by contact with water in a liquid or vapor state by passing the molten slag along a prefoaming or expanding trough by delivering the slag to this trough via an intermediate trough which is shiftable along the prefoaming trough in order to vary the location at which the slag contacts the prefoaming trough and the expanding-agent film thereon in accordance with physical characteristics of the molten slag, especially its temperature and viscosity. From the pre-expanding or prefoaming trough, the partially expanded slag may be subjected to expansion by conventional means, e.g. a rotating drum which disperses the slag particles through the air so that they can be collected in a completely expanded, dry and solidified state.

    摘要翻译: 熔融冶金炉渣通过与液体或蒸汽状态的水接触而膨胀,通过使熔融炉渣沿着预发泡或膨胀槽通过将渣通过沿预发泡槽移动的中间槽输送到该槽来改变位置 渣根据熔渣的物理特性,尤其是其温度和粘度,与预发泡槽及其上的膨胀剂膜接触。 从预膨胀或预发泡槽中,部分膨胀的炉渣可以通过常规方法进行膨胀,例如, 一个旋转的鼓,其将渣粒分散通过空气,使得它们可以以完全膨胀,干燥和固化的状态收集。

    Methods for making beads
    54.
    发明授权
    Methods for making beads 失效
    制作珠的方法

    公开(公告)号:US3856899A

    公开(公告)日:1974-12-24

    申请号:US29126272

    申请日:1972-09-22

    申请人: SCHOTT C

    发明人: SCHOTT C

    摘要: A method is provided for pelletizing molten materials which consists in feeding the material to be pelletized through a vertical refractory vessel through a controlled atmosphere and discharging the same horizontally from a rotating circular edge as molten pellets into a fluid coolant wherein the molten pellets are cooled and solidified into solid pellets.

    摘要翻译: 提供了一种用于造粒熔融材料的方法,其中包括将待造粒的材料通过可控气氛通过垂直的耐火容器进料,并将其从旋转的圆形边缘水平排出,作为熔融颗粒流入流体冷却剂,其中熔融颗粒被冷却, 固化成固体颗粒。

    Process for forming particles of microporous glass for tobacco smoke filters
    55.
    发明授权
    Process for forming particles of microporous glass for tobacco smoke filters 失效
    用于制造烟草烟雾过滤器的微波玻璃颗粒的方法

    公开(公告)号:US3630700A

    公开(公告)日:1971-12-28

    申请号:US3630700D

    申请日:1969-05-06

    发明人: HAMMEL JOSEPH J

    摘要: This invention relates to a process for forming small particles of microporous glass having interconnected pores suitable to filter tobacco smoke. It particularly relates to a method of melting a phase-separable, metal borosilicate glass composition, quenching the melted glass by contacting the molten glass with a quenching fluid to reduce rapidly the temperature below the strain point of the glass, thereby fracturing the glass into small fragments, phase separating the fragmented glass by treatment at elevated temperatures below the miscibility temperature of the glass for a sufficient period to form a silica-rich phase and a substantially continuous borate-rich phase, then cooling the phase-separated glass, and thereafter leaching the glass to remove a sufficient quantity of the boraterich phase to form microporous particles having interconnected pores.

    EXPANDABLE SILICA PARTICLES AND METHODS FOR MAKING AND USING THE SAME

    公开(公告)号:US20240317638A1

    公开(公告)日:2024-09-26

    申请号:US18652871

    申请日:2024-05-02

    申请人: VALUNOR AG

    IPC分类号: C03C11/00 C03B19/10 F27B3/06

    摘要: The present disclosure concerns expandable silica particles having a coating comprising talc powder and kaolin powder provided on the outer surface of the expandable silica particle and expandable and expanded silica particles comprising silica fume and/or ultrafine quartz silica sand beneath the surface of the particles. Methods for producing expandable and expanded silica particles are disclosed, including a method using a vibration plate and a furnace having a vibration plate for carrying out that method. The expanded silica particles have high compressive strength, substantially uniform cell size and distribution, low water absorption, and low porosity on the outer surface. They are useful as a filler in matrix materials, like concrete or epoxy, as insulation material with various binder materials, and as water filtration medium.