Solvent Extraction Flowsheet-Level Modeling and Simulation with Radiolysis

摘要

Flowsheet-level models do not account for explicilty coupledmodels of water, acid, The present work is aimed atdeveloping an extensive flowsheet simulation capability usingmodels for solvent extraction employed in cross-cuttingapplications in the area of nuclear separations, safeguards, materialsprotection, special materials for national security andnon-proliferation, critical materials, mining, and metallurgyapplications. Our approach takes into account participatingaqueous, organic, and vapor phases, homogeneous and heterogeneouschemical reactions, coupled with radiolysis andhydrolysis of the aqueous and organic phases.An important enabling component of the current developmentis the computational framework developed to allowfor the dynamic coupling of multiple stages of solventextraction. This parallel development named Cortixfacilitates the time-coupling ofmultiple contacting stages or multiple contacting banks oftypical solvent extraction equipment.The purpose of this communication is to discuss theprogress made thus far and to present preliminary results.