转炉同时脱磷提钒可行性分析

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Feasibility Analysis of Simultaneous Dephosphorization and Vanadium Extraction by Converter

1. Pangang Gorup Research Institute Co. Ltd., State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization, Panzhihua 617000, Sichuan, China;
2. Chongqing University, Chongqing 400044, China

摘要: 通过对转炉提钒过程元素氧化的热力学计算, 证明含钙的炉渣可以使₂O₅固定在炉渣中, 从而实现氧化脱磷。建立了五元高钙钒渣体系的分子离子模型, 对设定的渣系成分进行计算分析表明, 在渣中₂O₅含量在2%, 碱度控制在1.9时, 炉渣的固磷效果最佳;在设定炉渣成分条件下, logP_O₂= (-5) 时磷被钙以3CaO·P₂O₅的形式固定的效果最好。从理论上证明了在提钒转炉内进行同时脱磷提钒是可行的。
- 转炉 /
- 脱磷 /
- 提钒 /
- 分子离子模型 /
- 炉渣
Abstract: The thermodynamic calculations of element-oxidation in the process of vanadium extraction in converter had been done.The calculated results indicatethat the slag containing calcium can keep P₂O₅ in the slag.The molecular-ion model was established for high calcium vanadium slag system,and the calculations for setted slag shows that effect of the slag on phosphorus-fixation is greatest when P₂O₅ content in the slag is 2% and basicity is 1.9; under the condition of logP_O₂=（-5）,phosphorus is fixed by CaO in the form of 3 CaO.P₂O₅,and the effect was the best.It is proved theoretically that it is feasible for simultaneous dephosphorization and extraction of vanadium in vanadium extraction converter.
- converter /
- dephosphorization /
- vanadium extraction /
- molecular-ion model /
- slag

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