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Knez Ž, Knez Hrnčič M, Škerget M. Particle Formation and Product Formulation Using Supercritical Fluids. Annu Rev Chem Biomol Eng 2015; 6:379-407. [DOI: 10.1146/annurev-chembioeng-061114-123317] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Traditional methods for solids processing involve either high temperatures, necessary for melting or viscosity reduction, or hazardous organic solvents. Owing to the negative impact of the solvents on the environment, especially on living organisms, intensive research has focused on new, sustainable methods for the processing of these substances. Applying supercritical fluids for particle formation may produce powders and composites with special characteristics. Several processes for formation and design of solid particles using dense gases have been studied intensively. The unique thermodynamic and fluid-dynamic properties of supercritical fluids can be used also for impregnation of solid particles or for the formation of solid powderous emulsions and particle coating, e.g., for formation of solids with unique properties for use in different applications. We give an overview of the application of sub- and supercritical fluids as green processing media for particle formation processes and present recent advances and trends in development.
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Affiliation(s)
- Željko Knez
- Faculty of Chemistry and Chemical Engineering, University of Maribor, SI-2000 Maribor, Slovenia;, ,
| | - Maša Knez Hrnčič
- Faculty of Chemistry and Chemical Engineering, University of Maribor, SI-2000 Maribor, Slovenia;, ,
| | - Mojca Škerget
- Faculty of Chemistry and Chemical Engineering, University of Maribor, SI-2000 Maribor, Slovenia;, ,
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