转炉脱硫渣理化特性及吸附性能研究

采用铁水预处理脱硫渣为吸附剂材料,以低浓度铈离子（Ce³⁺）溶液模拟稀土废水溶液,研究脱硫渣对Ce³⁺的吸附。运用X射线衍射仪（XRD）、扫描电子显微镜（SEM）、和X射线荧光光谱分析（XRF）对脱硫渣进行物化性能分析,通过反应时间、初始浓度对吸附剂材料吸附Ce³⁺性能的影响实验,探究脱硫渣对Ce³⁺吸附性能及机理。研究结果表明脱硫渣对低浓度Ce³⁺具有良好的吸附效果,常温下,脱硫渣对Ce³⁺溶液最大吸附率为96.8%。反应时间和Ce³⁺初始浓度对脱硫渣影响不大。

Study on physical and chemical characteristics and adsorption performance of converter desulfurization slag

Hot metal pretreatment desulfurization slag was used as the adsorbent material,and a low concentration Ce³⁺ solu-tion was used to simulate a rare earth wastewater solution.The adsorption of Ce³⁺ by desulfurization slag was studied.X-ray diffractometer（XRD）,scanning electron microscope（SEM） and X-ray fluorescence spectrometry（XRF） were used to analyze the physical and chemical properties of the desulfurization slag.The effect of reaction time and initial concentration on the performance of Ce³⁺ adsorbed by the adsorbent to investigate the adsorption performance and mechanism of Ce³⁺ by desulfu-rization slag.The results showed that the desulfurization slag had a good adsorption effect on low-concentration Ce³⁺.At room temperature,the maximum adsorption rate of Ce³⁺ solution by the desulfurization slag was 96.8%.The reaction time and initial Ce³⁺ concentration had little effect on the desulfurization slag.