Liquid-liquid extraction: kinetics and thermodynamics

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

Hourly volumes:

            CM: 12 p.m.

            Tutorial: 8 hours

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

Chemistry of solutions

Supplements in solution chemistry

Chemistry of solutions applied to actinides

Continuous assessment

• Kinetics and thermodynamics in homogeneous phase.
• Thermodynamics in liquid-liquid extraction
• Determination and meaning of the different quantities
• Presentation of extraction mechanisms and associated constants
• Analysis of enthalpy and entropy contributions.
• Kinetics in liquid-liquid extraction
• Diffusion 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 the diffusional contribution (Lewis cells, single drop)
• Systems controlling diffusion (rotating cell)
• Fundamental aspects and applications in the following areas:
• Liquid-Liquid Extraction
• Liquid-Solid Extraction
• Supercritical fluid extraction
• Distillation

The course will include tutorials related to industrial problems, but will also incorporate bibliographic tutorials.

Administrative contact(s): Master's in Chemistry Secretariat

Master's degree in Chemistry @ umontpellier.fr