JMMCE  Vol.6 No.1 , June 2007
The Influence of Agitation Speed on the Morphology and Size Particle Synthesis of Zr(HPO4)2·H2O from Mexican Sand
ABSTRACT
Mexican zirconium sand has been envisaged like a source of zirconium compounds. The main product obtained is zircon (ZrSiO4), which has a high raw material value. During a mineralogical purification sand process with hydrofluoric acid, a liquor was obtained as the by product. This liquor was dripped over hot phosphoric acid to obtain zirconium hydrogen phosphate Zr(HPO4)2·H2O (α-ZP) which has taken considerably attention due to its wide application. Both products zircon and α-ZP were analyzed as for structure and purity using analytic techniques. X-Ray diffraction revealed that zircon and α-ZP were polycrystalline materials. Scanning Electron Microscopy indicated that α-ZP formed particles and aggregates in different shapes and size distributions depending on the condensing way and the agitation speed. Furthermore, thermogravimetric analysis demonstrated that the α-ZP phases present different hydrated levels. FTIR spectra were obtained to identify the corresponding PO stretching vibration from the α-ZP and the specific surface areas were calculated by BET method.

Cite this paper
G. Genoveva, O. Enrique, R. Teresita and O. Eduardo, "The Influence of Agitation Speed on the Morphology and Size Particle Synthesis of Zr(HPO4)2·H2O from Mexican Sand," Journal of Minerals and Materials Characterization and Engineering, Vol. 6 No. 1, 2007, pp. 39-51. doi: 10.4236/jmmce.2007.61004.
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