期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
Separation and High-quality Coal-tar Pitch Preparation from Coal Tar
摘要/Abstract
常温下(25℃)使用自行设计的萃取装置对煤焦油进行分步萃取,所得轻质组分经过柱层析多级分离,使用气相色谱(GC)和气质联用(GC/MS)归类分析煤焦油中的主要化合物,分离出萘、菲、蒽、荧蒽、芘和醋芳烯等化合物纯品.所得重质组分经反萃取去除小分子后,通过R-134蒸发器装置制备优质煤沥青,并使用红外光谱仪(FT-IR)分析其结构特性.
Coal tar is extracted sequentially in self-designed batch extractor at 25 ℃.The lightweight components are separated through a few columns chromatography.Meanwhile GC and GC/MS are used to analyze and classify the main compounds.Furthermore naphthalene,phenanthrene,anthracene,fluoranthene,pyrene and acearylenes are separated out from the lightweight components.Heavyweight components are prepared high-quality coal-tar pitches by R-134 evaporator device after reextracting small molecular compounds and the structural properties of coal-tar pitches are analyzed by fourier transform infrared spectroscopy.