高QI含量中温沥青制备中间相炭微球的研究  

Preparation of mesocarbon microbeads(MCMB)from medium temperature pitch with high quinoline insoluble content

作　　者：王菲[1] 房依林 朱亚明[1,2] 王莹 程俊霞 赵雪飞[1] Wang Fei;Fang Yilin;Zhu Yaming;Wang Ying;Cheng Junxia;Zhao Xuefei(College of Chemical Engineering,University of Science and Technology Liaoning,Anshan Liaoning 114051,China;Key Laboratory for Advanced Coal and Coking Technology of Liaoning Province,Anshan Liaoning 114051,China;Anshan Xingde Material Technology Co.,Ltd.,Anshan Liaoning 114100,China)

机构地区：[1]辽宁科技大学化工学院,辽宁鞍山114051 [2]辽宁省先进煤焦化技术重点实验室,辽宁鞍山114051 [3]鞍山兴德材料科技股份有限公司,辽宁鞍山114100

出　　处：《煤化工》2024年第3期66-73,共8页Coal Chemical Industry

基　　金：国家自然科学基金(22208138);辽宁省自然科学基金(2021-MS-306,2021-BS-245);辽宁省先进煤焦化技术重点实验室开发课题(2023KFKT-01,2022KFKT10);辽宁科技大学研究生科技创新项目(LKDYC202317)。

摘　　要：以高QI含量的中温沥青(HCTP)为原料,通过热缩聚法制备中间相炭微球(MCMB),考察了反应条件(反应温度、恒温时间和搅拌速率)对MCMB性质的影响。通过偏光显微镜、粒度分析仪、扫描电镜、XRD和拉曼光谱等对MCMB的粒度分布、表面微观形貌和微晶结构进行了研究。结果表明:以HCTP为原料制备MCMB的最佳反应条件为聚合温度430℃、恒温时间4.5 h、搅拌速率120 r/min;在此条件下制备的MCMB球形度好,收率为29.62%,平均粒径为20.87μm,粒度均匀性指数为0.93;1100℃炭化处理后,MCMB的理想石墨化碳微晶质量分数为75.45%。Medium temperature coal tar pitch with high QI content(HCTP)was used as raw material to prepare mesocarbon microbeads(MCMB)through the thermal condensation polymerization.The effects of reaction conditions(reaction temperature,constant temperature time and stirring rate)on the properties of MCMB were mainly investigated.The particle size distribution,surface morphology and microcrystalline structure of MCMB were studied in depth with polarizing microscopy,particle size analyzer,scanning electron microscopy,XRD,and Raman spectroscopy,respectively.The results showed that the optimal reaction conditions for preparing MCMB from HCTP were condensation polymerization temperature of 430℃,constant temperature time of 4.5 hours,and rotational speed of 120 r/min.The MCMB prepared under these conditions had a good sphericity with the yield of 29.62%,the average particle size was 20.87μm,and the particle size uniformity index was 0.93.The ideal graphitized carbon microcrystalline content of MCMB was 75.45%after the carbonization at 1100℃.

关 键 词：中温沥青 中间相炭微球(MCMB) 热缩聚法 粒度分布 微观形貌 微晶结构 

分 类 号：TQ522.65[化学工程—煤化学工程]