中温沥青中金属元素的测试及分离研究  

Study on Determination and Separation of Metal Elements in the Medium Temperature Pitch

作　　者：高丽娟[1] 刘艳霞[1] 张丽华[1] 赖仕全[1] 赵雪飞[1] 

机构地区：[1]辽宁科技大学化学工程学院,辽宁鞍山114051

出　　处：《中国材料科技与设备》2013年第6期59-61,共3页Chinese Materials Science Technology & Equipment

基　　金：辽宁科技大学专项基金资助项目（2012TD01）

摘　　要：采用ICP-AES原子发射光谱对中温沥青及其精制和改质沥青中金属元素进行测定，为制备低金属含量沥青工艺的确定提供参考。结果表明：中温沥青中含有金属元素：Ge、Pb、Ba、Mg、Gd、Na、Sn、Zn、Ni、Bi、Nb、Be、Cr、Ca、V、ln、Ti、Sr、Si、Cu、Al、Fe、Mn。其中Pb、Mg、Zn、Ni、Cr、Ca、Si、Cu、Al、Fe、Mn丰度较大。在萃取精制过程中所有金属离子含量都有所降低，这说明萃取精制工艺具有去除金属离子的作用；在精制沥青改质中大部分金属离子含量都略有升高。The content of metal elements in medium temperature pitch and the refined and modified asphalt were determined by ICP--AES atomic emission spectrometry, provided a reference for the preparation technology of low metal content in Asphalt. The results show that there are much metallic elements in the medium temperature pitch, such as Ge, Pb, Ba, Mg, Gd, Na, Sn, Zn, Ni, Bi, Nb, Be, Cr, Ca, V, In, Ti, Sr, Si, Cu, AI, Ee, Mn. And the abundance of Pb, Mg, Zn, Ni, Cr, Ca, Si, Cu, AI, Fe, Mn is larger. All metal ions, through the extractio process, is reduced. That shows the extraction process could remove metal ions from medium temperature pitch. The content of most metal ions in- creased slightly through the modified process of the refined asphalt.

关 键 词：中温沥青 精制沥青 改质沥青 ICP—AES原子发射光谱 摄谱法 

分 类 号：TQ536.9[化学工程—煤化学工程]