Abstract
The kinetics of the solid-state mechanochemical synthesis of the nanosized product (TlCl) in the reaction 2NaCl + Tl2SO4 + zNa2SO4 = (z + 1)Na2SO4 + 2TlCl was studied experimentlaly. The method used was based on the dilution of the initial mixture of powdered reagents (2NaCl + Tl2SO4) with another exchange reaction product (Na2SO4) at the optimum theoretically estimated z value, z = z* = 11.25. Several special features of the development of this reaction were established. The parameters of the kinetic curve obtained for the mechanochemical synthesis of the desired product were compared with those of the kinetic curve determined theoretically for the model reaction KBr + TlCl + zKCl = (z + 1)KCl + TlBr with z = z *1 = 13.5. This allowed us to experimentally estimate the mass transfer coefficient in a mechanochemical reactor by mobile milling bodies. This estimate was obtained for the first time. The dynamics of changes in the size of desired product nanoparticles depending on the time of mechanochemical activation in an AGO-2 ball planetary mill was studied.
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Original Russian Text © F.Kh. Urakaev, V.S. Shevchenko, 2006, published in Zhurnal Fizicheskoi Khimii, 2006, Vol. 80, No. 2, pp. 218–225.
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Urakaev, F.K., Shevchenko, V.S. A study of the mechanochemical synthesis of TlCl nanoparticles by the method of dilution with the final product. Russ. J. Phys. Chem. 80, 157–163 (2006). https://doi.org/10.1134/S0036024406020051
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DOI: https://doi.org/10.1134/S0036024406020051