Segregation roast process for the recovery of nickel from lateritic ore
    2.
    发明授权
    Segregation roast process for the recovery of nickel from lateritic ore 失效
    从红土矿石中回收镍的分离焙烧工艺

    公开(公告)号:US3904400A

    公开(公告)日:1975-09-09

    申请号:US37069173

    申请日:1973-06-18

    Applicant: BASIC INC

    CPC classification number: C22B23/00 C22B23/021

    Abstract: Lateritic ore is mixed with a chloridizing agent and a carbonaceous reductant to form an ore mixture for segregation roasting. The ore mixture is roasted at a temperature in the range of 1600*-2000*F. for a time duration of 0.5 to 2 hours in the presence of a reducing atmosphere provided by a mixture of CO-CO2 or H2-H2O gases to form a calcine containing nickel alloyed with iron. The calcine is subjected to a suitable treatment to recover the nickel therefrom.

    Abstract translation: 将红土矿石与氯化剂和碳质还原剂混合以形成用于分离焙烧的矿石混合物。 在由CO-CO 2或H 2 -H 2 O气体的混合物提供的还原气氛的存在下,将矿石混合物在1600°-2000°F的温度范围内烘烤0.5至2小时,形成 含有与铁合金的镍的煅烧物。 对煅烧物进行适当的处​​理从其中回收镍。

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