Recycling of Waste Solution after Hydrothermal Conversion of Fly Ash on a Semi-Technical Scale for Zeolite Synthesis
Artykuł w czasopiśmie
MNiSW
140
Lista 2021
| Status: | |
| Autorzy: | Panek Rafał, Madej Jarosław, Bandura Lidia, Słowik Grzegorz |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2021 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 6 |
| Wolumen/Tom: | 14 |
| Numer artykułu: | 1413 |
| Strony: | 1 - 16 |
| Web of Science® Times Cited: | 29 |
| Scopus® Cytowania: | 32 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Finansowanie: | This research was financed within the National Centre for Research and Development project no. LIDER/19/0072/L-9/17/NCBR/2018. |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | TAK |
| Licencja: | |
| Sposób udostępnienia: | Witryna wydawcy |
| Wersja tekstu: | Ostateczna wersja opublikowana |
| Czas opublikowania: | W momencie opublikowania |
| Data opublikowania w OA: | 15 marca 2021 |
| Abstrakty: | angielski |
| Nowadays, using fly ash for zeolites production has become a well-known strategyaimed on sustainable development. During zeolite synthesis in a hydrothermal conversion largeamount of post-reaction solution is generated. In this work, the solution was used as a substratefor Na-A and Na-X zeolites synthesis at laboratory and technical scale. Obtained materials werecharacterized using particle size analysis, X-ray diffraction (XRD), X-ray fluorescence spectroscopy(XRF), transmission electron microscopy (TEM), Fourier transformed infrared spectroscopy (FTIR),and nitrogen adsorption/desorption isotherm. Produced zeolites revealed high purity (>98%) andmonomineral zeolitic phase composition. The SiO2content was in the range 39–42% and 40–38%,whereas Al2O3content was 23–22% and 25–26% for Na-X and Na-A, respectively. TEM and BETanalyses revealed Na-X zeolite pores were almost identical to commercial 13X with SBETin therange 671–734 m2/g. FTIR indicated slight differences between materials obtained at laboratory andtechnical scale in Si-O-(Si/Al) bridges of the zeolitic skeleton. The results showed good replicability ofthe laboratory process in the larger scale. The proposed method allows for waste solution reusabilitywith a view to highly pure zeolites production in line with circular economy assumptions. |
