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    • 77. 发明公开
    • Selenium encapsulation for producing colored glass
    • Verkapselung von Selen zur Herstellung vongefärbtemGlas。
    • EP0618177A1
    • 1994-10-05
    • EP94104544.5
    • 1994-03-23
    • PPG INDUSTRIES, INC.
    • Longobardo, Anthony V.
    • C03C1/02
    • C03C1/10C03C1/02Y10S65/11
    • The present invention provides a glass forming composition for encapsulating selenium which includes, by weight percent of raw materials, 20 to 50% silica and 50 to 80% alkali and alkaline earth materials. The composition has a liquidus temperature between 600 to 1200°C, preferably up to 1000°C, and a viscosity up to 10,000 Poise at said liquidus temperature, preferably up to 5,000 Poise. The alkali and alkaline materials preferably include at least one group of materials combined in an approximate eutectic molar ratio. In one particular embodiment of the invention, the alkali and alkaline earth materials include groups of nitrates, such as KNO₃, NaNO₃ and/or Ca(NO₃)₂, and/or carbonates, such as K₂CO₃, Na(CO₃)₂ and/or Li₂CO₃.
    • 本发明提供一种用于包封硒的玻璃形成组合物,其中以原料的重量百分数计包含20-50%的二氧化硅和50-80%的碱金属和碱土金属材料。 该组合物的液相线温度在600至1200℃,优选至多1000℃,并且在所述液相线温度下的粘度高达10,000泊,优选高达5000泊。 碱和碱材料优选包括以近似共晶摩尔比组合的至少一组材料。 在本发明的一个具体实施方案中,碱金属和碱土金属材料包括硝酸盐如KNO 3,NaNO 3和/或Ca(NO 3)2和/或碳酸盐如K 2 CO 3,Na(CO 3)2和/或 碳酸锂。