Synthesis of Calcium Carbonate from Calcium Chlorine Solution Using Homogeneous Precipitation Method

Abstract:

Calcium carbonate(CaCO3) was synthesized from aqueous CaCl2 solution, using the homogeneous precipitation technique, which uses the hydrolysis of urea. The effects of reaction conditions on the morphology of CaCO3 were examined at 50-90°C. Particle size of CaCO3 decreases, as the concentrations of urea and [Ca2+] are increased. Calcite is produced more, as the concentration of [Ca2+] is increased. Method to stir the reaction solution affects significantly the particle size and morphology of CaCO3. Uniform needle-like aragonite particles were obtained, when left at 90°C for 4hours without stirring.

• Periodical: Materials Science Forum (Volumes 486-487)
• Pages: 542-545
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.486-487.542
• Online since: June 2005
• Authors: Kyung Nam Kim, Dae Yong Shin, Se Gu Son, Yong Do Kim
• Keywords: Aragonite, Calcium Carbonate, Homogeneous Precipitation, Urea

References

[1] Kojima, Y., Endo, N., Yasue, T. and Arai, J. Ceram. Soc. Japan, 103(1995), p.1282.

[2] T. Yasue and Y. Arai, Resources and Mater. 111(1995), p.439.

[3] K. Jonosono et al. Inorg. Mater., 2(1995), p.492.

[4] K, Kamiya et al., Mat. Res. Bull., 12(1977), p.1095.

[5] A. Kato et al., Gypsum & Lime, No. 250(1994), p.182.

[6] Kojima, Y., Sadotomo, A, Yasuem, T. and Arai, J. Ceram. Soc. Japan, 100(1992), p.1145.

[7] Sung-gyu Lyu et al., J. Kor. Ind. & Chem. Eng., 36, 2(1998), 262.

[8] Y. Kojima, A. Kawanobe, T. Yasue and Y. Arai, J. Ceram. Soc. Japan, 101(1993), 1145.

[9] A. Kato et al., Gypsum & Lime No. 245(1993), 234.