Synthesis of nano-crystalline slaked lime using design of experiment

실험계획법을 이용한 나노 결정 소석회 합성

  • Kim, Jin-Seong (School of Materials Science of Engineering, Pusan National University) ;
  • Kim, Jung-Woo (School of Materials Science of Engineering, Pusan National University) ;
  • Lee, Hee-Soo (School of Materials Science of Engineering, Pusan National University) ;
  • Kim, Yong-Nam (Material Analysis Team, Korea Testing Laboratory) ;
  • Shin, Hyun-Gyoo (Department of Materials Science and Engineering, Seoul National University) ;
  • Kim, Hwan (Department of Materials Science and Engineering, Seoul National University)
  • 김진성 (부산대학교 재료공학과) ;
  • 김정우 (부산대학교 재료공학과) ;
  • 이희수 (부산대학교 재료공학과) ;
  • 김용남 (한국산업기술시험원 재료평가팀) ;
  • 신현규 (서울대학교 재료공학과) ;
  • 김환 (서울대학교 재료공학과)
  • Published : 2008.08.31

Abstract

Nano-crystalline slaked lime was synthesized using design of experiment. In order to synthesize slaked lime, calcium chloride $(CaCl_2)$ and urea were used as starting materials. Calcium chloride solution and urea solution were mixed and heated in vessel that calcium carbonate was precipitated during heating. Precipitates were filtered, washed several times using D.I.water and ethanol and finally dried in oven. Slaked lime $(Ca(OH)_2)$ has been fabricated by the hydration of calcined $CaCO_3$. Design of experiment (Taguchi method) was used to optimize parameter, to minimize noise factors of experiment and to statistically analyze the results. Slaked lime having about 50 nm in optimized crystallite size could be obtained by calcination of $CaCO_3$ at $1000^{\circ}C$ for 0.5 h and hydration with D.I water containing ethanol and oxalic acid.

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