Journal
MOLECULES
Volume 25, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/molecules25225264
Keywords
azeotrope; waste minimization; solvent recovery; azeotropic distillation; process design; waste valorization
Funding
- MIUR, grant AMIS-Dipartimenti di Eccellenza-2018-2022
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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.
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