针对转炉铬矿熔融还原法冶炼不锈钢母液工艺,利用冶金热力学原理对该过程中涉及的几个重要问题进行了理论分析和计算,为在转炉中用铬矿实现钢的直接合金化的热力学可行性提供了理论依据.得到结论:①铬矿石在熔融还原转炉中是完全可以被还原的;②金属熔体中铬的活度随金属中铬质量分数的增加而增大,温度对金属铬活度的影响较小;③在1500～1600℃范围内,当金属中铬的质量分数小于20%时,在铬矿熔融还原法冶炼不锈钢母液条件下,含碳饱和的铁铬碳合金内不析出铬的碳化物.
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