Abstract：In this paper, through thermogravimetric analysis, single factor experiment, orthogonal experiment, the process of preparing high-purity ferro-phosphorus alloy under microwave heating conditions was studied, and the influence of silicon ratio coefficient, smelting temperature and alkalinity on the product composition and the recovery rate of phosphorus was investigated. The results show that the carbon content and titanium content of the ferro-phosphorus alloy obtained in the experiment are both lower than 0.05%, and the order of the degree of influence of each factor on the recovery rate of phosphorus is alkalinity>smelting temperature> silicon ratio coefficient. The best process conditions are silicon ratio coefficient of 1.2, the smelting temperature of 1360℃, and the alkalinity of 1.1,under these conditions, the phosphorus content of the product obtained is 26.99%, and the recovery rate of phosphorus is 88.08%.
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2022, Vol. 29 