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针对鄂西鲕状高磷铁矿难选、难冶的特点,从该矿矿相结构分析出发,在使用HSC计算化学软件的热力学模拟和具体实验的基础上,提出了气基还原+电炉熔分冶炼高磷铁矿的新型工艺.实验结果与HSC软件模拟结果吻合.实验室含P1.28%的高磷铁矿通过CO还原后熔分,得到含P0.27%的低磷铁;通过H2还原后熔分,得到含P0.33%的低磷铁.由熔分铁的SEM和EDS结果证实,P仍以夹杂物的形态存在,可以在熔分时通过去除铁水中夹杂物的方法进一步脱磷,以满足炼钢的要求.
Based on the analysis of the phase structure of the ore and the thermodynamics simulation and experiment of using HSC calculation chemistry software, the gas-based reduction + electric furnace melting Smelting high-phosphorus iron ore.Experimental results are in good agreement with the simulation results of HSC software.The high-phosphorus iron ore with P1.28% in the laboratory is melted by CO reduction to obtain low phosphorus iron with P0.27% H2 reduced after melting, obtained containing P0.33% of low phosphorus iron by the melting iron SEM and EDS results confirmed that P still exists in the form of inclusions, you can melt by removing the inclusions in the hot metal method Further dephosphorization to meet the steelmaking requirements.