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    • 13. 发明授权
    • Processing metal chlorides
    • 加工金属氯化物
    • US4246022A
    • 1981-01-20
    • US30112
    • 1979-04-16
    • Michael Robinson
    • Michael Robinson
    • C22B34/12C22B55/00
    • C22B34/1231C22B34/1218Y02P10/23
    • Metal may be recovered from metal chlorides, for example a mixed metal chloride residue from the fluidized bed chlorination of a titaniferous ore in the presence of carbon to produce titanium tetrachloride by heating, in the presence of a scavenging agent, which may comprise a combination of titanium dioxide and carbon inherently present in a residue from the aforesaid fluidized bed chlorination process, to at least 1500.degree. C. and preferably to a temperature at which iron present is liquid. If the temperature is maintained at below 2200.degree. C. iron, vanadium and niobium may be recovered preferentially to certain lower value metals which remain in the form of chlorides giving the possibility for the recovery of a high value mixed metal product. Titanium trichloride may be formed and this may be chlorinated to titanium tetrachloride thereby increasing the efficiency of the original chlorination process.
    • 金属可以从金属氯化物中回收,例如来自流化床的混合金属氯化物残余物,在碳存在下氯化含钛矿石,通过在清除剂存在下加热产生四氯化钛,其可以包含 固有地存在于上述流化床氯化方法的残余物中的二氧化钛和碳至至少1500℃,优选至铁存在的温度为液体。 如果温度保持在2200℃以下,铁,钒和铌可以优先回收到保留为氯化物形式的某些低价值金属,从而提供回收高价值混合金属产品的可能性。 可以形成三氯化钛,并将其氯化成四氯化钛,从而提高原始氯化过程的效率。