Thermite process for producing a metal or alloy
    143.
    发明公开
    Thermite process for producing a metal or alloy 失效
    Metallothermisches Verfahren zum Herstellen von Metallen und Legierungen。

    公开(公告)号:EP0509447A2

    公开(公告)日:1992-10-21

    申请号:EP92106428.3

    申请日:1992-04-14

    摘要: A thermite process for producing a metal or alloy by charging a reactor furnace with a mixture primarily containing a powdered metallic oxide and a reducing agent such as powdered aluminum, wherein a batch of the mixture of the starting materials is divided into a plurality of loading lots. The amount of heat generated by each of the loading lots of the starting materials is so regulated that it differs from any of the others and the loading lots are sequentially arranged. The lots are loaded into a furnace to form so may layers for thermite reaction in an ascending order in terms of the level of heat generation.

    摘要翻译: 一种通过将主要含有粉末状金属氧化物的混合物和诸如粉末状铝的还原剂的反应器炉装入反应炉中的铝热法,其中将一批原料混合物分成多个装载批次 。 起始原料的每个装载批次产生的热量被规定为与任何其他装载批次不同,装载批次依次排列。 将这些批料装入炉子中以形成热层反应的层,以发热量的升序升序。

    PROCESS FOR PRODUCING METALLIC NIOBIUM OR METALLIC TANTALUM
    147.
    发明公开
    PROCESS FOR PRODUCING METALLIC NIOBIUM OR METALLIC TANTALUM 失效
    生产金属铌或金属钽的方法

    公开(公告)号:EP0132073A3

    公开(公告)日:1986-12-30

    申请号:EP84304461

    申请日:1984-06-29

    摘要: Metallic niobium or metallic tantalum is produced by a process which comprises bringing a fluorine containing com­ pound of niobium or tantalum:
    (A) into contact with a gas comprising hydrogen at a temperature of at least 400°C; or
    (B) into contact with metallic aluminium, metallic magnesium or metallic lead, at a temperature of at least 300°C;
    to convert the fluorine containing compound into the corres­ ponding metal.

    摘要翻译: 金属铌或金属钽通过包括使铌或钽的含氟化合物(A)在至少400℃的温度下与包含氢的气体接触的方法来生产; 或(B)在至少300℃的温度下与金属铝,金属镁或金属铅接触; 以将含氟化合物转化为相应的金属。