Crystallization behavior of lithium carbonate during controlled addition of reactants: Transmitted laser-light intensity measurements
Artykuł w czasopiśmie
MNiSW
70
Lista 2024
| Status: | |
| Autorzy: | Sangwal Keshra, Mielniczek-Brzóska Ewa, Polak Wiesław |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2026 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Wolumen/Tom: | 673 |
| Numer artykułu: | 128378 |
| Strony: | 1 - 13 |
| Impact Factor: | 2,0 |
| 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 |
| Crystallization behavior of Li2CO3 in aqueous LiCl solution of a constant concentration cA by feeding aqueous Na2CO3 solution of predefined concentration cB at controlled constant rate RB by in situ measurements of laser-beam intensity I transmitted through the solution is investigated at 30 °C using an indigenously designed experimental arrangement. It was observed that: (1) the normalized transmitted light intensity In of 3.20 mol/L LiCl solution with the time t of feeding 1.037 mol/L Na2CO3 solution at different rates RB decreases up to feeding time tm, followed by subsequent decrease in In beyond tm with increasing t without feeding Na2CO3 solution, and (2) the decrease in the intensity In with the feeding duration t of Na2CO3 solution at different RB initially up to tm is slow, but later even without feeding the Na2CO3 solution, after following a convex curvature down to In equal to about 0.7, the intensity decreases with increasing time t and finally approaches zero. The experimental results are discussed from consideration of creation of supersaturation lnSm for the occurrence of three-dimensional (3D) nucleation using chemical reactions and subsequent evolution of crystallized mass m of Li2CO3 with time t following Avrami-type dependence. It was found that the feeding rate RB of Na2CO3 solution to LiCl solution determines the rate of creation of a particular mass of Li2CO3 solute corresponding to the maximum supersaturation lnSm for the occurrence of 3D nucleation and the subsequent crystallization of Li2CO3 solute due to lnSm. |
