Industrial experiment on heavy metal recovery of stainless steel slag

Baosheng Li, Li Sizhe
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Abstract

Industrial experiments on the hydrometallurgical recovery of heavy metals were carried out to identify ways to prevent heavy metal leaching from stainless steel tail slag and provide a scientific basis for producing steel slag fertilizers. The results showed that the comprehensive recovery percentages for metals could reach up to 86% to 95% with the process described in this paper. The average recovery percentages for Cr and Ni were about 90%. The experimental research results have been applied to engineering, and good results have been achieved. Based on mineralogical phase components of heavy metals and separation mechanisms, technological characteristics and influencing factors of the process were analyzed, and techniques for debugging are described herein. All the results should provide a good reference for widespread applications of the process.
不锈钢渣重金属回收工业试验
通过湿法冶金回收重金属工业试验,探索防止不锈钢尾渣中重金属浸出的途径,为钢渣肥料生产提供科学依据。结果表明,采用该工艺,金属的综合回收率可达86% ~ 95%。Cr和Ni的平均回收率约为90%。实验研究成果已应用于工程,取得了良好的效果。根据重金属矿物学相组成及分离机理,分析了该工艺的工艺特点及影响因素,并介绍了调试技术。研究结果可为该工艺的广泛应用提供参考。
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