Process for the preparation of agglomerated vanadium oxides
    1.
    发明授权
    Process for the preparation of agglomerated vanadium oxides 失效
    聚结钒氧化物的制备方法

    公开(公告)号:US4035476A

    公开(公告)日:1977-07-12

    申请号:US658474

    申请日:1976-02-17

    IPC分类号: C01G31/02 C01G31/00

    摘要: Agglomerated vanadium oxides of the formula V.sub.2 O.sub.x, wherein x is between 3.8 and 4.6, are prepared by thermally decomposing ammonium polyvanadate at 600.degree.-900.degree. C and permitting the resultant solid decomposition products and reducing gases to react. The reducing gases displace the air and/or scavenging gas in the reaction zone.

    摘要翻译: 通过在600-900℃下热分解聚钒酸铵并允许所得的固体分解产物和还原气体反应制备式V 2 O x的结合的钒氧化物,其中x为3.8至4.6。 还原气体置换反应区中的空气和/或清除气体。

    Method for producing alumina and alumina-zirconia abrasive material
    2.
    发明授权
    Method for producing alumina and alumina-zirconia abrasive material 失效
    生产氧化铝和氧化铝 - 氧化锆研磨材料的方法

    公开(公告)号:US4059417A

    公开(公告)日:1977-11-22

    申请号:US694993

    申请日:1976-06-10

    摘要: Abrasive granules are produced from alumina or an alumina-zirconia mixture by melting the oxide material and rapidly cooling the melt. To control the solidification velocity, the melt is cast into a molten chloride of Na, Ca, Ba, Mg or mixtures thereof to cool the oxide material melt, the chloride is separated from the cooled and solidified oxide material, and thereafter abrasive granules are produced from the solidified oxide material.

    摘要翻译: 通过熔化氧化物材料并快速冷却熔体,由氧化铝或氧化铝 - 氧化锆混合物制备研磨颗粒。 为了控制凝固速度,将熔体浇注到Na,Ca,Ba,Mg或其混合物的氯化物中以冷却氧化物材料熔体,将氯化物与冷却和固化的氧化物材料分离,然后产生磨料颗粒 从固化的氧化物材料。