系统分析了含磷炉渣处理技术的研究现状及其特点，通过分析可知，目前含磷炉渣的回收技术存在简单的初级利用、能耗过高、不适宜批量处理或工业化生产的问题。因此，提高磷元素回收效率、优化剩余残渣利用方式已成为含磷炉渣资源化利用的趋势。以回收含磷炉渣中的磷资源为主要目的，提出了转底炉低温固-固碳热还原气化脱磷制备磷酸及残渣用作转炉辅料的工艺技术路线。通过热力学及动力学分析，表明该技术路线是一种高效、低耗、环保、资源化利用含磷炉渣的新途径，对促进钢铁企业节能减排和可持续发展具有重要意义。
The research status and the characteristics of the technology for phosphatic slag treatment were analyzed. Re-sults show that there were some problems in the recycle technology of phosphatic slag, such as simple low-level utiliza-tion, high energy consumption, unsuitability for batch processing or industrial-scale production. Therefore, it is very neces-sary to improve the recovery efficiency and optimize the utilization of residues, which has been the development trend for resource utilization of the phosphatic slag. On the purpose of recycling phosphorus resource in the phosphatic slag, the technology route that phosphoric acid preparation used rotary hearth furnace by solid-solid gasification dephosphorization through carbon reduction and residues used as the converter auxiliary materials was proposed. Through thermodynamics and dynamics analysis, it shows that the technology route is a new resourceful utilization method of efficiency, low energy consumption and environmental protection, and it has great significance for the promotion of energy conservation and emission reduction as well as sustainable development of iron and steel enterprises.
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