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    • 9. 发明授权
    • Process for manufacture of metallic magnesium
    • 金属镁的制造方法
    • US4437886A
    • 1984-03-20
    • US373267
    • 1982-04-29
    • Hirohisa MiuraHiroshi SatouToshio Natsume
    • Hirohisa MiuraHiroshi SatouToshio Natsume
    • C22B26/22
    • C22B26/22Y02P10/212
    • A process for manufacture of metallic magnesium. A mixture of a first quantity of magnesium oxide, a second quantity of a carbide forming material which is either a material selected from the group of materials consisting of calcium, aluminum, boron, silicon, calcium oxide, aluminum oxide, boron oxide, and silicon oxide, or is a mixture of two or more of these materials, and whose weight is 10% or less than the weight of the first quantity, and a third quantity of carbon which is at least the equivalent mol weight of that of the magnesium oxide plus the carbide forming material, is heated within a reducing furnace at a pressure between about 5 and 200 torr and at a temperature of at least 1600.degree. C. The carbide forming material combines with the carbon to form carbide, which induces simultaneous reducing reaction as that by carbon and reduces the magnesium oxide, releasing magnesium vapor, which is rapidly cooled down by adiabatic expansion to generate metallic magnesium, while the carbide forming material returns to oxide form. The carbide forming material is recycled again, to repeatedly form carbide and repeatedly reduce more magnesium oxide.
    • 金属镁的制造方法。 第一量的氧化镁,第二量的碳化物形成材料的混合物,其是选自由钙,铝,硼,硅,氧化钙,氧化铝,氧化硼和硅的材料组成的材料 或者是这些材料中的两种或更多种的混合物,其重量为第一量的重量的10%或更少,以及与氧化镁的至少等摩尔重量的第三量的碳 加上碳化物形成材料,在还原炉内以约5至200托的压力和至少1600℃的温度加热。碳化物形成材料与碳结合以形成碳化物,其诱导同时还原反应为 通过碳并减少氧化镁,释放镁蒸气,其通过绝热膨胀快速冷却以产生金属镁,同时碳化物形成材料返回到氧化物形式。 碳化物形成材料再次被再循环,以反复形成碳化物并反复减少更多的氧化镁。