| Title: | Particle formation using supercritical fluids : a short review |
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| Authors: | ID Knez, Željko (Author) |
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| Files: |  Chemical_Industry_and_Chemical_Engineering_Quarterly_2006_Knez_Particle_formation_using_supercritical_fluids_a_short_review.pdf (514,21 KB)
MD5: 81D227EFAA9FE2E80FDDAFF529424D98
PID: 20.500.12556/dkum/f4a9444b-2308-4416-91a1-34f11079568c
 http://www.doiserbia.nb.rs/Article.aspx?id=1451-93720603141K
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.02 - Review Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | Particle formation and the design of solid particles and powdery composites with unique properties is at the moment one of major the developments of supercritical fluid (synonyms: dense gases, dense fluids, high pressure) applications. Conventional well-known processes for the particle-size redistribution of solid materials are crushing and grinding (which for some compounds are carried out at cryogenic temperatures), air micronization, sublimation, and recrystallization from solution. There are several problems associated with the above-mentioned processes. Some substances are unstable under conventional milling conditions, in recrysfallization processes the product is contaminated with solvent and waste solvent streams are produced. The application of supercritical fluids may overcome the drawbacks of conventional processes, and powders and composites with special characteristics can be produced. Several processes for the formation and design of solid particles using dense gases have been studied intensively. The unique thermodynamic and fluid-dynamic properties of supercritical fluids can also be used for the impregnation of solid particles, for the formation of solid powderous emulsions, particle coatings, e.g. for the formation of solids with unique properties for use in different applications. This review will focus on the fundamentals and on recent advances of particle formation and design processes using supercritical fluids on their applications and the technological advantages and disadvantages of various processes. |
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| Keywords: | chemical processing, high pressure technology, supercritical CO2, proteinase, thermal stability, pressure stability, enzyme activity, water content, dense gases |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2006 |
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| Number of pages: | str. 141-146 |
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| Numbering: | Letn. 12, št. 3 |
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| PID: | 20.500.12556/DKUM-25751  |
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| ISSN: | 1451-9372 |
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| UDC: | 66.09-987 |
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| ISSN on article: | 1451-9372 |
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| COBISS.SI-ID: | 10648854 |
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| DOI: | 10.2298/CICEQ0603141K |
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| NUK URN: | URN:SI:UM:DK:Y0GURTE4 |
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| Publication date in DKUM: | 31.05.2012 |
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| Views: | 2888 |
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| Downloads: | 160 |
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| Metadata: |    |
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| Categories: | Misc.
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