本发明涉及一种提高含磷钢渣中P2O5枸溶率的方法，属于冶金工业废渣的循环利用领域，解决了现有钢渣中磷含量低而无法满足磷肥或添加剂P2O5含量要求，钢渣枸溶率低而无法满足磷肥或添加剂磷肥效要求的问题。本发明包括以下步骤：步骤1、对含磷渣进行脱磷处理；步骤2、对脱磷渣进行调质处理；步骤3、对调质处理后的钢渣进行保温处理；步骤4、钢渣温降处理；步骤5、凝固的钢渣经后续工序处理得到磷肥。本发明大大提高了含磷渣中P2O5枸溶率，同时也有效减少炉渣渣量和利用钢渣显热，为含磷钢渣高效资源化利用作磷肥奠定了基础，提升钢铁企业的经济效益和减少环境污染。

The present invention relates to a method for improving the solubility of P2O5 in phosphorus containing steel slag, belonging to the field of recycling metallurgical industry waste slag. It solves the problem of low phosphorus content in existing steel slag that cannot meet the requirements of phosphorus fertilizer or additive P2O5 content, and low solubility of steel slag that cannot meet the requirements of phosphorus fertilizer or additive phosphorus fertilizer efficiency. The present invention includes the following steps: step 1, dephosphorizing the phosphorus containing slag; Step 2: Conduct quenching and tempering treatment on the dephosphorization slag; Step 3: Conduct insulation treatment on the steel slag after quenching and tempering treatment; Step 4: Steel slag temperature drop treatment; Step 5: The solidified steel slag is processed in subsequent processes to obtain phosphate fertilizer. The present invention greatly improves the solubility of P2O5 in phosphorus containing slag, while also effectively reducing the amount of slag and utilizing the sensible heat of steel slag, laying the foundation for efficient resource utilization of phosphorus containing steel slag as phosphorus fertilizer, improving the economic benefits of steel enterprises and reducing environmental pollution.