FeO-CaO-SiO2-Al2O3渣系中锌及其氯化物的饱和蒸气压测试  

Saturated vapor pressure measurement of zinc and its chloride from the FeO-CaO-SiO_2-Al_2O_3 slag

作　　者：张延玲[1] 路俊萍[1] 王玉刚[1] 葛西荣辉[2] 郭晓东[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]东北大学多元物质科学研究所,日本仙台980-8577

出　　处：《北京科技大学学报》2008年第7期717-723,共7页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50704004)

摘　　要：利用Knudsen喷射法得到了FeO-CaO-SiO2-Al2O3渣系中Zn及其氯化物的蒸气压,并考察了各因素如温度和渣成分的影响.结果表明:在本实验条件下,金属Zn与ZnCl2蒸气压随温度的升高而升高,且ZnCl2蒸气压的对数与温度的倒数之间呈明显的线性关系;渣碱度对金属Zn与ZnCl2的蒸气压呈完全不同的影响趋势,前者随碱度的增加而升高,而后者则降低;渣中FeO含量升高,能够显著提高金属Zn与ZnCl2的蒸气压.The vapor pressures of zinc and its chloride from a FeO-CaO-SiOE-Al2O3 slag system were measured by Knudsen effusion method under the conditions with varying parameters such as temperature and slag composition. The results show that the vapor pressures of metallic Zn and ZnCl2 increase with increasing temperature. For ZnCl2, the logarithm of vapor pressure is a linear function of the reciprocal of temperature. The slag basicity exhibits the different effects on the vapor pressures of metallic Zn and ZnCl2. The former increases with increasing slag basicity, while the latter decreases. A high FeO content in the slag tends to increase the vapor pressures of metallic Zn and ZnCl2.

关 键 词：FeO-CaO-SiO2-Al2O3渣系 锌 氯化物 饱和蒸气压 喷射法 

分 类 号：TF803.1[冶金工程—有色金属冶金]