1. bookVolume 30 (2012): Issue 4 (December 2012)
Journal Details
License
Format
Journal
eISSN
2083-134X
ISSN
2083-1331
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Open Access

Preparation and properties of calcium oxide from eggshells via calcination

Published Online: 14 Dec 2012
Volume & Issue: Volume 30 (2012) - Issue 4 (December 2012)
Page range: 313 - 322
Journal Details
License
Format
Journal
eISSN
2083-134X
ISSN
2083-1331
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Abstract

Duck eggs are one of the most versatile cooking ingredients in which residue eggshells are discarded. Raw duck eggshells were calcined at temperatures between 300 to 900 °C, for 1, 3, and 5 h. Both the raw and calcined duck eggshells were characterized by FTIR, STA, XRD, XRF, TEM, BET, a particle size analyzer, and an impedance analyzer. The proper calcination conditions are: 900 °C and 1 h, yielding calcium oxide with a purity of 99.06 % w/w. The calcium carbonate of the rhombohedral form (CaCO3) transforms completely into the calcium oxide or lime of the face centered cubic form (CaO) at 900 °C, as shown by XRD diffraction patterns. The transmission electron microscopy (TEM) images of the calcium oxide reveal a moderately good dispersion of nearly uniform particles. The calcium oxide has a white color, a spherical shape, high porosity, and narrow particles size distribution. The percentage of ceramic yield of the calcium oxide is 53.53, as measured by STA (TG-DTA-DTG). The calcium oxide has a N2 adsorption-desorption isotherm indicating the meso-porosity range. The dielectric constant and the electrical conductivity of the calcined calcium oxide are 35 and 1:0×10−6(Ω·m)−1, respectively, at the frequency of 500 Hz.

Keywords

[1] Thapon J.L., Bourgeois C.M., Lavousier Technique at Documentation, L’Oeuf et les ovoproducts, 1994. Search in Google Scholar

[2] Rivera E.M. et al., Mater. Lett., 41 (1991), 128. http://dx.doi.org/10.1016/S0167-577X(99)00118-410.1016/S0167-577X(99)00118-4Search in Google Scholar

[3] Adeyeye E.I., Bull. Chem. Soc. Ethiop., 23 (2009), 159. 10.4314/bcse.v23i2.44957Search in Google Scholar

[4] Freire M.N., Holand J.N.F., Cerâmica, 52 (2006), 240.4. http://dx.doi.org/10.1590/S0366-6913200600040000410.1590/S0366-69132006000400004Search in Google Scholar

[5] Wan X. et al., Mater. Sci. Eng., 25 (2005), 455. http://dx.doi.org/10.1016/j.msec.2004.12.00310.1016/j.msec.2004.12.003Search in Google Scholar

[6] Meiszterics A., Sinko K., Colloids Surf. A: Physicochem. Eng., 319 (2008), 143. http://dx.doi.org/10.1016/j.colsurfa.2007.08.02110.1016/j.colsurfa.2007.08.021Search in Google Scholar

[7] Chrysafi R. et al., J. Eur. Ceram. Soc., 27 (2007), 1707. http://dx.doi.org/10.1016/j.jeurceramsoc.2006.05.00410.1016/j.jeurceramsoc.2006.05.004Search in Google Scholar

[8] Southam D.C. et al., Curr. Appl Phys., 4 (2004), 355. http://dx.doi.org/10.1016/j.cap.2003.11.04710.1016/j.cap.2003.11.047Search in Google Scholar

[9] Richardson I.G., Cem. Concr. Res., 38 (2008), 137. http://dx.doi.org/10.1016/j.cemconres.2007.11.00510.1016/j.cemconres.2007.11.005Search in Google Scholar

[10] Park H.J. et al., J. Environ. Sci., 19 (2007), 1436. http://dx.doi.org/10.1016/S1001-0742(07)60234-410.1016/S1001-0742(07)60234-4Search in Google Scholar

[11] Jones D., ADAS Consulting Ltd. UK Utilization of egg shell waste from UK egg processing and hatchery establishments, Pigs, Eggs and Poultry Division, DEFRA, Whitehall Place East, London, 2002 (www.defra.gov.uk). Search in Google Scholar

[12] Murakami F.S., Rodrigues P.O., Cienc. Technol. Aliment., 27 (2007), 658. http://dx.doi.org/10.1590/S0101-2061200700030003510.1590/S0101-20612007000300035Search in Google Scholar

[13] Lu G.Q., Zhao X.S., Nanoporous Materials Science and Engineering, Imperial College Press, 4th editions, 2006. Search in Google Scholar

[14] Chen X.D. et al., Trans. I. ChemeE. part C, 77 (1999), 40. Search in Google Scholar

[15] Su B.L. et al., Microporous Mesoporous Mater., 105 (2007), 49. http://dx.doi.org/10.1016/j.micromeso.2007.06.02910.1016/j.micromeso.2007.06.029Search in Google Scholar

Recommended articles from Trend MD

Plan your remote conference with Sciendo