Multiscale modeling of solvent extraction and the choice of reference state: Mesoscopic modeling as a bridge between nanoscale and chemical engineering
Abstract
This article highlights current paradigms and challenges in modeling of lanthanides and actinides solvent extraction by lipophilic extractants. Within the multiscale approach, complex phenomena that occur in solvent systems can be rationalized at different length scales. Strengths and drawbacks of quantum and classical simulations, as well as mesoscopic modeling, are presented. In the multiscale modeling, the definition of standard states is of paramount importance because it dictates the amount of collective effects included within calculations. Mesoscopic modeling of the transfer and the aggregation free energies can be used to successfully predict properties of extraction systems at phenomenological scale and to assist chemical engineering of separation industry.
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