高纯磷铁电硅热法制备影响因素实验研究  

Experimental Research on Influencing Factors of High-purity Ferro-Phosphorus and Silicon Thermal Method

作　　者：林保全 庞建明 宋耀欣 李石稳 岳锦涛 Lin Baoquan;Pang Jianming;Song Yaoxin;Li Shiwen;Yue Jintao(Central Iron&Steel Research Institute,Beijing,China;Resource Application and Alloy Materials Division,China Iron and Steel Research Institute Group,Beijing,China)

机构地区：[1]钢铁研究总院,北京100081 [2]中国钢研科技集团有限公司资源应用与合金材料事业部,北京100081

出　　处：《矿产综合利用》2023年第2期28-32,40,共6页Multipurpose Utilization of Mineral Resources

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%。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%.

关 键 词：磷铁合金 正交实验 电硅热法 P组分收得率 

分 类 号：TD985[矿业工程—选矿] TD95