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J. Korean Ceram. Soc. > Volume 28(3); 1991 > Article
Journal of the Korean Ceramic Society 1991;28(3): 205.
액상-기상 반응법에 의한 탄산칼슘 미분말의 합성과 형상제어
민경소, 최상흘
한양대학교 무기재료공학과
Synthesis and Shape Control of Calcium Carbonate Fine Powders by Liquid-Gas Reaction Method
Calcium carbonate fine powders were synthesized by blowing CO2 gas in CaO or Ca(OH)2 suspension, and the shapes of powders obtained were examined for each synthetic condition. When water was used as a solvent, ultrafine calcite powders with the average size of∼0.03$mutextrm{m}$ were obtained. When synthesized using methanol as a solvent, amorphous phase and spherical vaterite phase were obtained by suction filtering and non-filtering, respectively. Reaction did not occured in ethanol medium, but spherical vaterite phase was obtained by adding ethylene glycol in ethanol.
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