| 高纯磷铁电硅热法制备影响因素实验研究 |
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| 引用本文： | 林保全,庞建明,宋耀欣,李石稳,岳锦涛.高纯磷铁电硅热法制备影响因素实验研究[J].矿产综合利用,2023,44(2):28-32+40. |
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| 作者姓名： | 林保全 庞建明 宋耀欣 李石稳 岳锦涛 |
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| 作者单位： | 1.钢铁研究总院，北京 100081 |
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| 摘 要： | 本研究以磷矿石和铁粉为原料，工业硅为还原剂，通过正交实验研究冶炼温度、保温时间、配硅系数对磷铁合金产品中C含量、Ti含量、P含量以及P组分收得率的影响。结果表明：实验所得磷铁合金中C含量均低于0.043%,Ti含量均低于0.036%。各因素对P含量以及P组分收得率的影响程度大小顺序为：配硅系数>冶炼温度>保温时间。电硅热法制备低C低Ti高纯磷铁合金的较佳工艺条件为冶炼温度1390℃，保温时间60 min，配硅系数1.2。此条件下磷铁合金成分为C含量0.010%,Ti含量0.036%,P含量27.78%,P组分收得率为96.49%。
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| 关 键 词： | 磷铁合金 正交实验 电硅热法 P组分收得率 |
| 收稿时间： | 2021-03-03 |
Experimental Research on Influencing Factors of High-purity Ferro-Phosphorus and Silicon Thermal Method |
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| Affiliation: | 1.Central Iron & Steel Research Institute, Beijing, China2.Resource Application and Alloy Materials Division, China Iron and Steel Research Institute Group, Beijing, China |
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| Abstract: | In this study, phosphate rock and iron powder were used as raw materials, and industrial silicon is used as a reducing agent. Through orthogonal experiments, the effects of smelting temperature, holding time and silicon ratio on the carbon content, titanium content, phosphorus content and the recovery rate of phosphorus in ferro-phosphorus alloy products are studied. The results show that the carbon content in ferro-phosphorus alloys obtained in the experiment is less than 0.043%, and the titanium content is less than 0.036%. The order of the degree of influence of various factors on the phosphorus content and the recovery rate of phosphorus from large to small is: silicon ratio, smelting temperature, holding time. The best process conditions for preparing ferro-phosphorus alloy by electro-silicothermic process are smelting temperature of 1390 ℃, holding time of 60 min, and silicon ratio of 1.2. Under these conditions, the ferro-phosphorus alloy has a carbon content of 0.010%, a titanium content of 0.036%, and a phosphorus content of 27.78%. The recovery rate of phosphorus was 96.49%. |
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