Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
Molecules. 2020 Nov 12;25(22):5264. doi: 10.3390/molecules25225264.
Aiming for more sustainable chemical production requires an urgent shift towards synthetic approaches designed for waste minimization. In this context the use of azeotropes can be an effective tool for "recycling" and minimizing the large volumes of solvents, especially in aqueous mixtures, used. This review discusses the implementation of different kinds of azeotropic mixtures in relation to the environmental and economic benefits linked to their recovery and re-use. Examples of the use of azeotropes playing a role in the process performance and in the purification steps maximizing yields while minimizing waste. Where possible, the advantages reported have been highlighted by using E-factor calculations. Lastly azeotrope potentiality in waste valorization to afford value-added materials is given.
为了实现更可持续的化学生产，需要迫切转向旨在最小化废物的合成方法。在这种情况下，共沸物的使用可以成为“回收”和最小化大量溶剂（特别是在水混合物中使用的溶剂）的有效工具。本综述讨论了不同种类的共沸混合物的应用，以及与它们的回收和再利用相关的环境和经济效益。共沸物在过程性能和最大化产量同时最小化废物的净化步骤中发挥作用的例子。在可能的情况下，通过使用 E 因子计算突出了报告的优点。最后，介绍了共沸物在废物增值方面的潜力，以提供附加值材料。
