Recent experimental studies demonstrate the need to take into account weak interactions in the understanding of solvent extraction processes. This well-established industrial technology now beneficiates of a supramolecular approach, complementary to the traditional analysis based on coordination chemistry. In this article, we focus on the integration of a colloidal approach in the analysis of solvent extraction systems: organic phases employed are complex fluids, in which extracting molecules self-assemble into reverse aggregates. We detail the available analytical tools employed towards characterization of these organic phases, and emphasize the recent results in aggregation driven extraction. All experimental data is discussed in light of theoretical approaches which propose adequate thermodynamic models and shed light on the importance of entropy on the phenomena. Diluent effects or synergism have been successfully rationalized, efficient new formulations based on a physico-chemical analysis have been proposed, and the door is now open for further development at industrial scale.

最近的实验研究表明，在理解溶剂萃取过程中需要考虑弱相互作用。现在，这种完善的工业技术受益于超分子方法，是对基于配位化学的传统分析的补充。在本文中，我们将重点放在分析溶剂萃取系统中的胶体方法的集成上：采用的有机相是复杂的流体，其中萃取分子自组装成反向聚集体。我们详细介绍了用于表征这些有机相的可用分析工具，并强调了聚集驱动萃取的最新结果。根据理论方法讨论了所有实验数据，这些方法提出了适当的热力学模型，并阐明了熵对现象的重要性。稀释剂效果或协同作用已成功合理化，基于理化分析的高效新配方已被提出，并为工业规模的进一步发展打开了大门。