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研究了把ＣＯＲＥＸ尾气改质成还原煤气，并采用竖炉法生产海绵铁的工艺流程以及该工艺对还原气和海绵铁质量的影响。
The process of converting COREX tail gas into reducing gas and using spontaneous iron by shaft furnace method was studied, and the effect of this process on the quality of reducing gas and sponge iron was studied.