摘要
以高温煤焦油为原料,蒸馏至280℃得软沥青,再经溶剂萃取沉降分离得煤焦油精制软沥青,在恒温500℃炭化4 h得馏出物。通过实验确定该馏出物的分析方法是气相和液相色谱相结合,分离方法是精馏和冷却结晶相结合。为煤焦油精制软沥青的综合利用和新产品的开发提供实验基础。
Refined soft pitch was obtained from the distillation of high temperature coal tar at 280 ℃, extraction with solvent and then settlement, which was carbonized at 500 ℃ for 4h to afford the distillate. Separation of the distillate was achieved by rectification and cooling crystallization, and analysis was completed by gas chromatography and high performance liquid chromatography.
出处
《云南化工》
CAS
2008年第3期55-57,共3页
Yunnan Chemical Technology
基金
辽宁省微纳米技术及系统重点实验室开放基金资助(2007-5)
关键词
煤焦油
软沥青
炭化
馏出物
分析
分离
coal tar
soft pitch
carbonization
distillate
analysis
separation
