Scale-up Study of Agglomeration During Oxalic Precipitation in Nuclear Industry

The aim of this paper is to study the scale-up effects on agglomeration mechanisms during the precipitation of actinide and lanthanide oxalate in continuous MSMPR (Mixed Solution Mixed Product Removal) crystallizers in order to determine extrapolation rules from the laboratory scale to pilot and ind...

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Bibliographic Details
Published inProcedia chemistry Vol. 7; pp. 493 - 498
Main Authors Lalleman, Sophie, Bertrand, Murielle, Gaillard, Jean-Philippe, Plasari, Edouard
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2012
Subjects
agglomeration
Bromley model
neodymium
oxalic precipitation
scale-up
scale-up
agglomeration
neodymium
Bromley model
oxalic precipitation
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Summary:The aim of this paper is to study the scale-up effects on agglomeration mechanisms during the precipitation of actinide and lanthanide oxalate in continuous MSMPR (Mixed Solution Mixed Product Removal) crystallizers in order to determine extrapolation rules from the laboratory scale to pilot and industrial scales. Precipitation experiments are performed in three identical steady-state continuous precipitators with a 20 scale-up factor. Under the same chemical and hydrodynamic conditions, the agglomeration kernel of neodymium oxalate obtained at small scale is valid on larger one. The results of this study allow to scale-up with success the data obtained at laboratory-scale to pilot even industrial scale.
ISSN:1876-6196
1876-6196
DOI:10.1016/j.proche.2012.10.075