6533b871fe1ef96bd12d0e89

RESEARCH PRODUCT

Liquid–liquid equilibria in the system H3PO4–KCl–H2O–tri-n-butyl phosphate: experiments and modelling

Miguel De La GuardiaBrahim MessnaouiTijani BounahmidiSalvador GarriguesKhadija Ziat

subject

ChemistryGeneral Chemical EngineeringPhase (matter)Inorganic chemistryTri-N-butyl PhosphateAnalytical chemistryAqueous two-phase systemGeneral Physics and AstronomyPitzer equationsLiquid liquidPhysical and Theoretical Chemistry

description

Abstract The liquid–liquid equilibria of the system H3PO4–KCl–H2O–TBP was studied experimentally in the concentration range 0–6 mol/kg. The obtained data were modelled using the Pitzer equation for the aqueous phase and the Sergievskii–Dannus relationship for the organic phase. A fairly good agreement was observed between the model and the experimental data.

https://doi.org/10.1016/j.fluid.2004.05.004