Abstract

The preparation of mesocarbon microbeads (MCMB) has been studied by heating coal tar pitch with different phenyl silicone oil content at 350°C for 2h.The spheres with diameters ranging from 0.54 to 11.4μm were obtained. The as-extracted MCMB when the silicone oil/coal pitch value was 3 had a very homogeneous size, a small diameter and also an excellent sphericity. The yield of MCMB was 8.3%, and microcrystalline structure was better. After stabilization, the spheres carbonized at 900°C still kept spherical, but broken into small particles during the graphitization. The stabilization destroyed the microcrystalline structure of as-extracted MCMB, but the microcrystalline structure became better after carbonization. The structure of graphitized MCMB at 2300°C was close to the graphite structure, and clear graphitization fringes were observable.

Recommended Citation

Cheng, Youliang; Li, Tiehu; Li, Fengjuan; Zhuang, Qiang; and Jing, Deqi (2009) "Preparation of Mesocarbon Microbeads and Subsequent Heating Treatment," International Journal of Chemical Reactor Engineering: Vol. 7: A27.
Available at: http://www.bepress.com/ijcre/vol7/A27