Liquid-liquid extraction: kinetics and thermodynamics

A general approach to liquid-liquid extraction will be developed through notions of thermodynamics and kinetics, with a view to understanding the mechanisms responsible for extraction as well as the processes taking place at the liquid-liquid interface. Fundamental aspects of other types of extraction (liquid-solid, supercritical fluid, distillation) will also be covered.

Hourly volumes* :

            CM: 12h

            TD : 8h

The objective of this teaching unit is to inventory the fundamental data on the kinetics and thermodynamics of liquid-liquid extraction. It will also present the main concepts and processes inherent in extraction (liquid-liquid, liquid-solid or by critical fluid) and distillation.

Solution chemistry

Solution chemistry supplements

Solution chemistry applied to actinides

Full continuous assessment

• Kinetics and thermodynamics in homogeneous phase.
• Thermodynamics in liquid-liquid extraction
• Determination and meaning of the different quantities
• Presentation of the extraction mechanisms and associated constants
• Analysis of enthalpic and entropic contributions.
• Kinetics in liquid-liquid extraction
• Diffusional term and chemical kinetics (laws describing phenomena)
• The liquid-liquid interface (description, physicochemical properties, etc.)
• Definition and identification of the limiting regime (examples)
• Experimental techniques
• Systems minimizing diffusional contribution (Lewis cells, single drop)
• Systems controlling the diffusional term (rotating cell)
• Fundamental aspects and applications in the following areas:
• Liquid-Liquid Extraction
• Liquid-Solid Extraction
• Supercritical fluid extraction
• Distillation

The teaching will include tutorials related to industrial problems but will also integrate bibliographic tutorials.

Administrative contact(s): Master of Chemistry secretariat

master-chimie @ umontpellier.fr