炭素焙烧焦油甲苯不溶物性质和组成分析  

Analysis of properties and composition of toluene insoluble materials in calcination tar

作　　者：闫飞飞 罗钟生 杨宏杰 罗英涛 Yan Fei-fei;Luo Zhong-sheng;Yang Hong-jie;Luo Ying-tao(Zhengzhou Nonferrous Metals Research Institute Co.Ltd.of Chalco,Henan Zhengzhou 450041,China)

机构地区：[1]中国铝业郑州有色金属研究院有限公司,河南郑州450041

出　　处：《炭素技术》2020年第5期79-82,共4页Carbon Techniques

基　　金：中国铝业股份有限公司自主研发项目(zz2018070)。

摘　　要：采用元素分析仪、红外光谱仪、X射线衍射分析仪、扫描电子显微镜等仪器对铝用炭素焙烧焦油中甲苯不溶物(TI)的组成与结构进行分析。结果表明,TI主要是由形状极其不规则的颗粒团聚而成,其中95%的颗粒粒径小于1.265μm,TI主要以稠环芳烃有机物为主,且相较于焙烧焦油有更高的缩合度,无机物主要为VO2、AlF3、CaSO4、SiO2、Al2O3等化合物。氧原子在TI中富集,其存在形态主要为酚羟基和羧基。The composition and structure of toluene insoluble substance(TI) in the tar produced during the flue gas cleaning of the baking process are analyzed by the elemental analyzer, infrared spectrometer, X-ray diffraction analyzer and scanning electron microscope.The results show that TI is mainly composed of organics dominated by polycyclic aromatic hydrocarbons and has higher condensation degree compared with calcined tar. It shows extremely irregular shape, and 95% of which is smaller than 1.265 μm. And inorganic substances are mainly VO2, AlF3, CaSO4, SiO2, Al2O3 and other compounds. Oxygen atoms are enriched in TI with the main forms of phenolic hydroxyl groups and carboxyl groups.

关 键 词：铝用炭素 焙烧焦油 甲苯不溶物 组成 

分 类 号：TQ522.64[化学工程—煤化学工程] TE622.14[石油与天然气工程—油气加工工程]