Antisolvent crystallization kinetics of different substances in solvent–antisolvent systems
Artykuł w czasopiśmie
MNiSW
70
Lista 2024
| Status: | |
| Autorzy: | Sangwal Keshra, Polak Wiesław |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2024 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 628 |
| Numer artykułu: | 127562 |
| Strony: | 1 - 13 |
| Web of Science® Times Cited: | 0 |
| Scopus® Cytowania: | 0 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| Published experimental data of metastable zone width (MSZW) for the crystallization of four different solutes from their saturated solutions, determined as the maximum antisolvent content Δxmax, by addition of selected antisolvents as a function of feeding rate RA using theoretical equations based on power law (PL) and classical nucleation theory (CNT) are analyzed and trends of variations of the parameters of the equations and rela- tionship between the parameters of the two approaches are discussed. With Δxmax taken in mole fraction of the antisolvent, from the analysis of the Δxmax(RA) data for the different investigated systems the following con- clusions may be drawn: (1) The values of the parameters of the linear dependence of ln(Δxmax) on lnRA of the PL-based approach and those of the parameters of the linear dependence of (Δxmax) 2 on lnRA of the CNT-based approach are mutually related. (2) The preexponential factor A of the CNT, associated with the frequency of attachment of solute molecules with, and their detachment from, the growing three-dimensional nuclei, and their solute–solution interfacial energy γeff mainly depend on the product fa2, where f is the number of molecules or ions of solute per m3 in its saturated solution and a2 is the dimensionless sol- vent–antisolvent interaction parameter. The sequence of variation of γeff is opposite to that of the preexponential factor A. (3) The observed trend of variation of the nucleation constant K calculated from the analysis of antisolvent content Δxmax taken in mole fraction is similar to that of the A for different systems. However, A ≫ K and the ratio A/K ≈ 106. (4) The values of γeff obtained from the MSZW data of the investigated compounds |
