Amino-acid recovery using ionic liquids: Partitioning in water + ionic liquid systems
Sustainable process-product development & green chemistry
Modelling, Design & Analysis of Processes with Ionic Liquids (T1-1P)
Keywords: Partition, amino-acids, ionic liquids
Ionic liquids are a new group of chemicals simply defined as electrolytes with a melting point around or below ambient temperature. There has been an important boost in ionic liquid research for the last 10 years, especially for applications as reaction media (especially for homogeneous catalysis), solvents for separation processes (for liquid extraction and gas absorption), electrolytes (for batteries) and as thermal fluids. Moreover, their low vapor pressure favors their separation from most mixtures, and thus application as entrainers for azeotropic and extractive distillations or as solvents for liquid extraction reveals of highest interest.
Biomolecules are usually produced using enzymatic or fermentation processes. In general, the separation and purification steps are difficult and expensive, but very high purity is usually needed in biomolecules’ applications. Information regarding the use of ionic liquids as solvents for the separation and/or purification of biomolecules is still nowadays scarce. In this work preliminary results on the partition of dinitrophenylated amino-acids between aqueous and ionic liquid phases are presented. This data are needed in order to study the amino-acid recovery from diluted aqueous solutions (e.g., fermentation broths) using solvent extraction, a classic unit operation in chemical engineering.
See the full pdf manuscript of the abstract.
Presented Monday 17, 13:30 to 15:00, in session Modelling, Design & Analysis of Processes with Ionic Liquids (T1-1P).
