摘要
以煤焦油为原料，选用正已烷和苯混合溶剂，通过溶剂革取分离和蒸馏，制备得到低喹啉不溶物含量净化煤沥青。在不同条件下对所制取的低喹啉不溶物含量煤沥青进行炭化热处理，分析了净化沥青的炭化行为。将净化沥青炭化产物制成光片，观测其显微组织结构特征和中间相球体的生长发育，判定作为针状焦和碳纤维原料的可能性。
Through extractive distillation and stripping of coal tar in the dissolvent of be-cane and benesene,clarified coal pitCh with low content of insoluble quinoline is prepared.The pitch thus obtained is carbonized in heat-tractment and analysed as to itS behaviour of carbonhation.The antbraxolite is mede into samples of optical piece for observation of the characteristics Of their micro texture,and of the dseelopment of their interphase globe bodies so as to determine the POssibiliteS of acieular coke and carbon fibre for use as raw materials.
关键词
煤沥青
煤焦油
溶剂
萃取
Coal pitch
coal tar
dissolvent
extraction
