乳液法制备中间相炭微球的研究

Abstract: High performance Meso-carbon Microbeads(MCMB) with regular and perfect shape, high yields and narrow size distributions were obtained by oxidation and carbonization of Mesophase Pitch Microbeads (MPMB) prepared by emulsifying mesophase pitch particles from heavy petroleum residual oil, whose anisotropic contents are respectively 85, 90, and 100% for samples PP1, PP2 and PP3. Processing conditions, which affected the preparation of MPMB by the emulsion method, were investigated. Results indicate that, (1) Silicone oil is a suitable dispersant for preparing MPMB; (2) The pitches with different anisotropic contents have different optimum treatment temperatures and times (PP1: 320℃, 30min; PP2: 330℃, 30min, PP3: 355℃, 30min), meanwhile the yields and morphologies of the resultant microbeads are also different (yields: PP1

Keywords:
• Emulsion method, Mesophase pitch microbeads, Meso-carbon microbeads, Dispersion medium, Particle size distributions