Experimental Study on the Desulfurization Performance of Magnesium Slag

摘要：

An experimental study has been performed on the desulfurization performance of the original magnesium slag (from the process of magnesium production).CaO content is about 50％ in the slag,but its conversion rate is below to 30％ as desulfurizer directly in the experimental conditions.To enhance the performance of the slag the hydration treatment process is tried.In the hydration process,the slag,additives and water are mixed proportionally in slurry,then dehydrated and dried.By comparing different hydration parameters,the optimal hydration condition is found.The slag performance for desulfurization under different conditions,such as slag types,hydration time,additives and drying temperature,is investigated by TGA.The results show that a much higher calcium conversion rate (about 40％) of the slag is obtained after the hydration process. By means of XRD,Sorptomtic Instrument and SEM,the related parameters of the original slag and the hydration treated slag are analyzed.It is found that the composition,appearance and surface area changed obviously.The principle is basically studied that the hydration may enhance the desulfurization performance of the slag.

关键词： magnesium slag hydration parameters desulphurization performance

作者: Baoguo FAN Yan JIN Xianrong ZHENG Xiaolei QIAO Xutao WANG

作者单位: College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 0300024,P.R.Chi College of Electrical and Power Engineering,Taiyuan University of Technology,Taiyuan 300024,P.R.Chin

会议类型: 国际会议

会议名称: The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)

会议地点: 哈尔滨

会议语种:英文

页码: 344-347

在线出版日期: 2011-07-19（万方平台首次上网日期，不代表论文的发表时间）