Abstract
Sodium oxalate crystals grown in aqueous sodium hydroxide solutions with different concentrations were characterized by optical and atomic force microscopy to examine their morphologies. Experimental results indicated that a high concentration of sodium hydroxide had a dramatic effect on reducing the size of sodium oxalate crystals. A nitrogen gas adsorption technique was employed to quantify the change of specific surface area of sodium oxalate. A two dimensional image analysis technique was also employed to estimate surface area and the crystal size distribution of sodium oxalate.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
Reference
Lever, G., “Some aspects of the chemistry of bauxite organic matter on the bayer process: the sodium oxalate-humate interaction,” Travaux ICSOBA,. 13(18) (1983), 335–347.
Beckham, K.R. and S.C. Grocott. “A thermodynamically based model for oxalate solubility in Bayer liquor” Light Metals, 1993.
Power, G.P. and W. Tichbon. “Sodium oxalate in the Bayer process: Its origin and effects” Proceedings of the Second International Alumina Quality Workshop. Perth, Australia, 1990.
Reyhani, M.M., et al. “Gibbsite nucleation at sodium oxalate surfaces,” Proceedings of the Fifth International Alumina Quality Workshop, Bunbury, Australia, 1999.
Power, G.P., “The impact and control of organic compounds in the extraction of alumina from bauxite,” Extractive metallurgy Conference, 1991.
Grocott, S.C. and S.P. Ronsenberg. “Soda in Alumina. Possible mechanisms for soda incorporation,” Proceedings of the First International Alumina Quality Workshop. Gladstone, Australia, 1988.
Reyhani, M.M., et al. “Crystallisation of sodium oxalate in the Bayer process,” 14th International Symposium on Industrial Crystallization. Cambridge, 1999.
Reyhani, M.M., et al., “Investigation at the atomic level of interactions between gibbsite and sodium oxalate in the Bayer process,” (Report No.210, Minerals and energy research institute of westen Australia, 2000).
Gabas, N., N. Hiquily, and C. Laguérie, “Response of Laser Diffraction Particle Sizer to Anisometric Particles,” Particle & Particle Systems Characterization, 11(2) (1994), 121–126.
Hind, A.R., S.K. Bhargava, and S.C. Grocott, “The surface chemistry of Bayer process solids: a review,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, 146 (1–3) (1999), 359–374.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2016 The Minerals, Metals & Materials Society
About this chapter
Cite this chapter
Fu, W., Vaughan, J. (2016). Morphological Investigation of Sodium Oxalate Crystals Grown in Aqueous Sodium Hydroxide Solution. In: Sadler, B.A. (eds) Light Metals 2013. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-65136-1_34
Download citation
DOI: https://doi.org/10.1007/978-3-319-65136-1_34
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-65135-4
Online ISBN: 978-3-319-65136-1
eBook Packages: Chemistry and Materials ScienceChemistry and Material Science (R0)