HOMOGENEOUS CATALYST RECOVERY AND RECYCLE WITH CO2

均相催化剂回收和CO2再循环催化剂分离对于工业过程至关重要，可以最大限度地减少废物流，并有可能制定催化剂再循环策略。水相两相催化代表了一种确保容易回收有价值的有机金属催化剂的优良工业方法。不幸的是，许多有用的有机底物在水中的低溶解度阻碍了这一概念的大规模应用。我们最近开发的有机-水可调溶剂（OATS）将允许将水相两相化学的概念应用于更广泛的工业重要过程。该方案旨在将OATS技术应用于几个关键的工业加氢反应。OATS的工业应用可能会简化高活性均相催化剂的回收和再循环。PI将研究控制水溶性配体改性催化剂行为的关键因素，以确定对这些催化剂活性的影响以及它们的回收和随后的再循环的难易程度。第二个目标是解决溶剂选择和反应条件对这些相同特征的影响。更好地了解这些因素对于成功应用这项令人兴奋的新技术至关重要。

Homogeneous Catalyst Recovery And Recycle With CO2Catalyst separation is crucial for industrial processes to minimize the waste streams and to potentially develop catalyst-recycling strategies. Aqueous biphasic catalysis represents one excellent industrial method of ensuring easy recovery of valuable organometallic catalysts. Unfortunately, the low solubility of many useful organic substrates in water hinders the application of this concept on a large scale. Our recent development of Organic-Aqueous Tunable Solvents (OATS) will allow the application of the concepts of aqueous biphasic chemistry to a much wider range of industrially significant processes. This proposal aims to apply the OATS technique to several key industrial hydroformylation reactions. Industrial application of OATS would potentially simplify the recovery and recycle of highly active homogeneous catalysts.The PI will examine the key factors governing the behavior of catalysts modified bywater-soluble ligands to determine the effects on the activity of these catalysts and the ease of their recovery and subsequent recycle. A second aim would address the effects of solvent choice and reaction conditions on these same features. A greater understanding of these factors is paramount to the successful application of this exciting new technology.