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.
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)
出处
《炭素技术》
CAS
北大核心
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)。
关键词
铝用炭素
焙烧焦油
甲苯不溶物
组成
Carbon for aluminum
calcination tar
toluene insoluble matter
composition
作者简介
闫飞飞(1992-),硕士,助理工程师,主要研究方向:铝用炭素、炭素环保。
