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 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.
References

[1]   Ordonez, R. E., Drot, R. and Simoni, E., 2002, “Sorption of uranium (VI) onto lanthanum phosphates surfaces.” Langmuir, Vol. 18, pp. 7977-7984.

[2]   Constantino U., 1997, “Thermoanalytical Study, Phase transitions and dimensional changes of α-Zr (HPO4 )*H2O Large Crystals.”. J. Solid State Chem., Vol., 132, pp. 17-23.

[3]   Krogh A. and Andersen M., 1998, “Preparation and characterization of a news 3-dimensional Zirconium Hidrogen Phosphate, τ-Zr(HPO4)2 Determination of the complete Crystal structure Compining synchrotron X-ray single crystal Diffraction and Neutron Powder Diffraction”. Inorg. Chem., Vol., 37, pp. 876-881.

[4]   Souka N., Shabana R., Farah K., 1976, “Adsorption behaviour of some actinides on zirconium phosphate stability constant determinations.” J. Radional. Nucl. Ch., Vol., 33, pp.215-222.

[5]   Chunli L., 2001, “The migration of radionuclides 237 Np, 238 Pu and 241 Am in a weak loss aquifer: A field column experiment.” Radiochim. Acta, Vol., 89, pp. 519-522.

[6]   [6] Drot R., Lindecker C., Fourest B., Simoni E., 1998, “Surface characterization of zirconium and thorium phosphate compounds.” New J. Chem. pp. 1105-1109.

[7]   Lomenech C., Drot R. and Simoni E., 2003, “Speciation of uranium (VI) at the solid/solution interface: sorption modeling on zirconium oxide.” Radiochim Acta, Vol., 91, pp.453-461.

[8]   Hirai, H., Toshiyuki, N., Imanaka, N., Adachi G. Y. , 2004, “Characterization and thermal behavior of amorphous rare earth phosphates.” J. Alloys Compoud, Vol., 374, pp. 84-88.

[9]   Vaivars G., Maxakato N. W., Mokrani T., Petrik L., Klavins J., Gericke G., Linkov V.,2004, “Zirconium phosphate based inorganic direct methanol fuel cell.” Materials Science,Vol., 10(2), pp. 162-165.

[10]   Tarafdar A., Panda A. B., Pradhan N. C. and P. Pramanik, 2006, Synthesis of spherical mesostructured zirconium phosphate with acidic properties. Microporous and mesoporous materials, Vol. 95(1-3), pp. 360-365.

[11]   Clearfield A, Stynes J. A., 1964, “The preparation of crystalline zirconium phosphate and some observations on its ion exchange behavior.” J. Inorg. Nucl. Chem., Vol., 26, pp.117-129.

[12]   Bayliss, P., 1986, Mineral Powder Diffraction File Date Book,. JCPDS (Swarthmore, PA).

[13]   Kamiya, M., Sasai, R. and Itoh, H., 2006, “Lead recovery from PbZrO3 using wet ballmill technique and hydrothermal synthesis of α-zirconium phosphate from wastewater for resource recovery.” Journal of Hazardous Materials, Vol. B134, pp. 67-73.

[14]   Alberti G, Constantino U, Millini R, Perego G, Vivan R., 1994, “Preparation, characterization, and structure of α-zirconium hydrogen phosphate hemihydrate.” J. Solid State Chem., Vol. 113, pp. 289-295.

[15]   Pecharromán C., Ocana M., Tartaj P., Serna C. J., 1994, “Infrared optical properties of zircon.” Mater. Res. Bull. Vol. 29, pp. 417-426.

[16]   Slade, R. C. T., Knowles, J. A., Jones, D. J., Roziere, J, 1997, “The isomorphous acid salts α-Zr(HPO4)2?H2O, α-Ti(HPO4)2?H2O and α-Zr(HAsO4)2?H2O.” Solid State Ionics, Vol. 96,pp. 9-19.

[17]   Williams, D. H. and Fleming, I., 1980, “Spectroscopic methods in organic chemistry.”McGraw-Hill Book Company. UK. 251 p.

[18]   Alamo J., Roy R., 1984, “Revision of Crystalline Phases in the system ZrO2–P2O5.”Communications of the American Ceramic Society, Vol. 67, pp. 80-82.

 
 
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