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Continuous precipitation of monodispersed yttrium basic carbonate powders: Part III. Kinetics

Published online by Cambridge University Press:  31 January 2011

Y-S. Her ,
E. Matijević  and
W.R. Wilcox
Y-S. Her
Affiliation:
New York State Center for Advanced Materials Processing, Clarkson University, Potsdam, New York 13699-5814
E. Matijević
Affiliation:
New York State Center for Advanced Materials Processing, Clarkson University, Potsdam, New York 13699-5814
W.R. Wilcox
Affiliation:
New York State Center for Advanced Materials Processing, Clarkson University, Potsdam, New York 13699-5814
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Abstract

The reaction kinetics involved in the continuous precipitation of monodispersed spherical yttrium basic carbonate particles was studied. The amount of powder produced was a linear function of H2CO3 generated by the decomposition of urea in mildly acidic solutions. A model equation, containing an empirical constant F, was derived to describe the conversion yield as a function of reactant concentrations, reaction time, and temperature. The calculated and experimental data agree well for both the batch and continuous processes.

Type
Articles
Information
Journal of Materials Research , Volume 7 , Issue 8 , August 1992 , pp. 2269 - 2272
Copyright
Copyright © Materials Research Society 1992

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