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第 1 期 张 文 龙 等 : 碳 酸 钙 磷 酸 化 工 艺 制 备 多 孔 球 形 羟 基 磷 灰 石 41Preparation of Porous Spherical Hydroxyapatite Particles byPhosphoration of Calcium CarbonateZHANG Wen-long, LIU Yan-yan, LI Yong-xiu, JIANG Bo-quan(Department of Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330029, China)Abstract: The porous spherical hydroxyapatite particles were prepared by phosphoration of calcium carbonate with solutions containing(NH 4 ) 2 HPO 4 , Na 2 HPO 4 and their mixtures under microwave heating, and the products were characterized by ESEM, XRD and EDS. Theexperimental results showed that calcium carbonate particles were converted rapidly into hydroxyapatite after microwave treatment for15 min. The composition of phosphoration solution has strong effect on the morphology and crystallization of the product.Hydroxyapatite with different spherical structures of fuzzy or fine particles aggregated morphologies were obtained under differentconditions.Key words: calcium carbonate; phosphoration; hydroxyapatite; microwave heating