METHOD FOR PRODUCING SiO2 GRANULATE
    1.
    发明申请
    METHOD FOR PRODUCING SiO2 GRANULATE 有权
    生产SiO2颗粒的方法

    公开(公告)号:US20150086462A1

    公开(公告)日:2015-03-26

    申请号:US14397484

    申请日:2013-04-25

    IPC分类号: C01B33/18

    摘要: The invention relates to a process for producing SiO2 granules by freezing and re-thawing an SiO2 suspension, wherein a separation of liquid and sediment composed of agglomerated SiO2 particles occurs in the course of thawing, the liquid removed is decanted and the residual moisture in the sediment is removed by a drying step with formation of the SiO2 granules. According to the invention, an auxiliary comprising alkali metal-free bases in the form of nitrogen hydrides is added to the suspension to set the pH greater than 7.

    摘要翻译: 本发明涉及一种通过冷冻和再融化SiO 2悬浮液来生产SiO 2颗粒的方法,其中在解冻过程中发生由附聚的SiO 2颗粒组成的液体和沉积物的分离,将去除的液体倾倒并将残留的水分 通过形成SiO 2颗粒的干燥步骤除去沉淀物。 根据本发明,向悬浮液中加入包含氮化氢形式的不含碱金属的碱的辅助剂,使pH大于7。

    Process for Producing a Porous Glass and Glass Powder and Glass Material for Carrying Out the Process
    4.
    发明申请
    Process for Producing a Porous Glass and Glass Powder and Glass Material for Carrying Out the Process 审中-公开
    用于生产多孔玻璃和玻璃粉末和玻璃材料的方法

    公开(公告)号:US20100221540A1

    公开(公告)日:2010-09-02

    申请号:US12224067

    申请日:2006-02-24

    申请人: Monika Hermann

    发明人: Monika Hermann

    IPC分类号: C03C11/00 C03B19/10

    摘要: The invention relates to a process for producing a porous glass and glass powder using a partial Vycor process on an alkali metal borosilicate glass material. The process is characterized in that an addition of metal oxides and/or rare earth metal oxides in variable proportions of from 0.05 to 15 percent by mass is carried out on the alkali metal borosilicate glass material during the course of the Vycor process, with a doping incorporation of the metal oxides and/or the rare earth metal oxides into the resulting SiO2 matrix with an increase in the optical index of refraction of the porous glass being brought about during the Vycor process, and an opposed jet milling process is employed in combination with a ceramic sifter wheel in a subsequent dry milling process, with classification of the porous glass particles produced which have a size range of less than 15 μm being carried out. The porous glass material is characterized by a ternary SiO2—B2O3—Na2O base mixture having an adjustable optical index fraction in a material composition having the following variable proportions of metal and lanthanide oxides: 0.001-0.1% by mass of Fe2O3, 0.01-0.2% by mass of MgO, 0.05-15% by mass of ZrO2, 0.5-15% by mass of La2O3, 0.5-15% by mass of WO3, 0.5-15% by mass of TiO2.

    摘要翻译: 本发明涉及在碱金属硼硅酸盐玻璃材料上使用部分Vycor工艺制造多孔玻璃和玻璃粉末的方法。 该方法的特征在于,在Vycor工艺过程中,在碱金属硼硅酸盐玻璃材料上加入0.05至15质量%的可变比例的金属氧化物和/或稀土金属氧化物,掺杂 在Vycor工艺期间,随着多孔玻璃的光学折射率的增加,金属氧化物和/或稀土金属氧化物结合到所得的SiO 2基体中,并且采用相对的喷射研磨方法与 在随后的干法研磨过程中的陶瓷筛子轮,进行了尺寸范围小于15μm的生产的多孔玻璃颗粒的分级。 多孔玻璃材料的特征在于具有以下可变比例的金属和镧系元素氧化物的材料组成中具有可调光学指数分数的三元SiO 2 -B 2 O 3 -Na 2 O基混合物:0.001-0.1质量%的Fe 2 O 3,0.01-0.2% 的MgO,0.05〜15质量%的ZrO 2,0.5〜15质量%的La 2 O 3,0.5〜15质量%的WO 3,0.5〜15质量%的TiO 2。

    Materials produced from ash-slag waste
    8.
    发明授权
    Materials produced from ash-slag waste 失效
    灰渣废物生产的材料

    公开(公告)号:US5763341A

    公开(公告)日:1998-06-09

    申请号:US773461

    申请日:1996-12-24

    摘要: A method of obtaining glass materials from ash-slag. Waste wherein the waste is heated to a melting point temperature and melted in a reducing medium. The obtained melt is cooled by a thermal shock to form a foamed glass material. Prior to heating the charge, the carbon content therein is brought to 3.0-8.0 wt %, and the foamed glass material is foamed under a flow of a gaseous medium resulting form decomposition of carbides formed in the melt as a result of carbon content adjustment. Carbon addition also reduces iron oxide present in the waste, this reduction facilitating iron separation from the foamed material.

    摘要翻译: 从灰渣获得玻璃材料的方法。 将废物加热到熔点温度并在还原介质中熔化的废物。 将获得的熔体通过热冲击冷却以形成泡沫玻璃材料。 在加热电荷之前,其碳含量达到3.0-8.0重量%,并且在气态介质流下发泡玻璃材料,由于碳含量调节,形成熔体中形成的碳化物的分解。 碳添加还减少废物中存在的氧化铁,这种还原促进了铁与泡沫材料的分离。

    Apparatus for expanding metallurgical slag
    10.
    发明授权
    Apparatus for expanding metallurgical slag 失效
    用于扩大冶金炉渣的设备

    公开(公告)号:US4123247A

    公开(公告)日:1978-10-31

    申请号:US851636

    申请日:1977-11-15

    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。