연속식 탄산칼슘 결정화기에서 교반속도와 온도가 입도분포에 미치는 영향

한현각; 정옥희; 임미희; 김진아; Hyun Kak Han; Ok Hee Jeong; Mi Hee Lim; Jin A Kim

Korean Chemical Engineering Research, Vol.44, No.3, 289-293, June, 2006

Export Citation

연속식 탄산칼슘 결정화기에서 교반속도와 온도가 입도분포에 미치는 영향

Effect of RPM and Temperature on the CSD in the CMSMPR Calcium Carbonate Crystallizer

한현각, 정옥희^†, 임미희, 김진아

순천향대학교 화학공학과, 336-745 충남 아산시 신창면 읍내리 646

Hyun Kak Han, Ok Hee Jeong^†, Mi Hee Lim, and Jin A Kim

Department of Chemical Engineering, Soonchunhyang University, 646, Eupnae-ri, Shinchang-myun, Asan-si, Chungnam 336-745, Korea

E-mail:

초록

탄산칼슘을 제조하는 연속식 결정화 공정에서 결정의 입도분포에 대한 온도와 교반속도 영향을 연구하였다. 연속식 조업에서 용액의 산도 변화는 적었다. 교반속도가 300 RPM 이하, 용액의 온도가 낮으면 탄산칼슘 결정의 부피 평균 크기는 안정하였고, 전자현미경 사진 관찰에서 calcite와 aragonite가 만들어졌음을 알 수 있었다.

In the CMSMPR (continuous mixed suspension mixed product removal)system, the effect of temperature and RPM on the CSD (crystal size distribution) in the calcium carbonate process was investigated. In the steady state operation, the change of solution pH was small. At the low temperature and below 300 RPM, volume mean size change of calcium carbonate was stable and CSD was narrow. In the SEM view, calcite and aragonite was obtained.

Keywords:Calcium Carbonate;Crystal Size Distribution;CMSMPR Crystallizer;RPM;Temperature

[References]

Ahn JH, Kim H, Park MJ, J. of the Korean Ceramic Society, 38(4), 343 (2001)
Ahn JH, Lee JS, Joo SM, Kim HS, Kim JK, Han C, Kim H, J. of the Korean Ceramic Society, 39(4), 327 (2002)
Ahn JH, Joo SM, Kim HS, Park SS, Kim DH, Kim H, “Effect of Reaction Temperature on the CaCO3 Crystalling Powder for the Synthesis of Basic Calcium Carbonate Process,” 2nd Asian Conference in Crystal Growth and Crystal Technology (2002)
Choi KS, Ahn JH, Lee HL, Kim H, “Preparation of Acicular Type Aragonite PCC Powders by Carbonation Process,” PACRIM4 (Ceramics in Novel Service Environments) An International Conference on Advanced Ceramics and Glasses, Hawaii (2001)
Baskar Sen Gupta: Mixing and Crystallization
Han HK, Lee SI, Lee CS, HWAHAK KONGHAK, 28(1), 58 (1990)
Han HK, Lee SI, Lee CS, “A Transformation Kinetics and Discretized Population Balance for Calcium Carbonate,” 4th Japan-Korea Symposium on Sepatation Technology, 961 (1996)
Lee SI, Han HK, Lee CS, “A Kiscretized Population Balance for Batch Precipitation,” 4th Japan-Korea Symposium on Sepatation Technology, 861 (1996)
Randolph AD, Larson MA, “Theory of Particulated Processes, 2nd ed.,” Academic Press, New York (1988)
Ogino SK, Suzuki T, J. Cryst. Growth, 106, 393 (1990)
Jang chun, bypum and lime, 122, 33 (1973)

[Referenced By]

[1] Ahn JH, Kim H, Park MJ, J. of the Korean Ceramic Society, 38(4), 343 (2001)

[2] Ahn JH, Lee JS, Joo SM, Kim HS, Kim JK, Han C, Kim H, J. of the Korean Ceramic Society, 39(4), 327 (2002)

[3] Ahn JH, Joo SM, Kim HS, Park SS, Kim DH, Kim H, “Effect of Reaction Temperature on the CaCO3 Crystalling Powder for the Synthesis of Basic Calcium Carbonate Process,” 2nd Asian Conference in Crystal Growth and Crystal Technology (2002)

[4] Choi KS, Ahn JH, Lee HL, Kim H, “Preparation of Acicular Type Aragonite PCC Powders by Carbonation Process,” PACRIM4 (Ceramics in Novel Service Environments) An International Conference on Advanced Ceramics and Glasses, Hawaii (2001)

[5] Baskar Sen Gupta: Mixing and Crystallization

[6] Han HK, Lee SI, Lee CS, HWAHAK KONGHAK, 28(1), 58 (1990)

[7] Han HK, Lee SI, Lee CS, “A Transformation Kinetics and Discretized Population Balance for Calcium Carbonate,” 4th Japan-Korea Symposium on Sepatation Technology, 961 (1996)

[8] Lee SI, Han HK, Lee CS, “A Kiscretized Population Balance for Batch Precipitation,” 4th Japan-Korea Symposium on Sepatation Technology, 861 (1996)

[9] Randolph AD, Larson MA, “Theory of Particulated Processes, 2nd ed.,” Academic Press, New York (1988)

[10] Ogino SK, Suzuki T, J. Cryst. Growth, 106, 393 (1990)

[11] Jang chun, bypum and lime, 122, 33 (1973)