超临界CO2 和离子液体是两种具有优异性能的绿色化学试剂 ,本文介绍了将两者结合反应 分离体系的物化性质和多种绿色化学过程。利用超临界CO2 可以广泛地萃取离子液体中的不挥发性化合物而不导致离子液体及其中催化剂的流失 ,在加氢、醛化、甲酰化等反应 分离过程中的应用表明 ,过程具有很好的反应分离特性和环境友好性 ,应用前景广阔。 Supercritical CO2 and ionic liquids are two kinds of green chemical reagents with excellent performance. In this paper, the physical and chemical properties of the two systems combined with the reaction separation system and a variety of green chemical processes are introduced. The use of supercritical CO2 can be widely extracted ionic liquid non-volatile compounds without causing ionic liquid and catalyst loss, in the hydrogenation, hydroformylation, formylation reaction separation process shows that the process is very good The reaction separation characteristics and environment-friendly, broad application prospects.