Szczegóły publikacji
Opis bibliograficzny
$Mg-Zn$ and $Mn-Zn$ ferrites derived from coil core materials as new phenol methylation catalysts / Roman Klimkiewicz, Hanna Grabowska, Włodzimierz Miśta, Kazimierz PRZYBYLSKI // Industrial & Engineering Chemistry Research ; ISSN 0888-5885. — 2012 — vol. 51 iss. 5, s. 2205–2213. — Bibliogr. s. 2212–2213, Abstr. — Publikacja dostępna online od: 2012-01-04
Autorzy (4)
- Klimkiewicz Roman
- Grabowska Hanna
- Miśta Włodzimierz
- AGHPrzybylski Kazimierz
Dane bibliometryczne
| ID BaDAP | 64846 |
|---|---|
| Data dodania do BaDAP | 2012-03-21 |
| Tekst źródłowy | URL |
| DOI | 10.1021/ie201063e |
| Rok publikacji | 2012 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Industrial & Engineering Chemistry Research |
Abstract
A catalytic phenol methylation study on two ferrospinel materials (Mg0.63Zn0.37)(Mn0.1Fe1.8)O3.85 (hereafter Mg–Zn) and (Mn0.55Zn0.35Fe0.1)Fe2O4 (hereafter Mn–Zn) was performed. The reaction was carried out in the gas phase in a continuous manner with the feed composition of phenol, methanol, and water in molar ratio 1:5:1. Both ferrites are active in the studied reaction. The alkylation of phenol with methanol led to the selective production of o-methylated phenol derivatives, i.e., o-cresol and 2,6-xylenol. However, both catalysts markedly differ in terms of activity. Different synergy effects on both catalysts cannot be a sufficient explanation. These materials do not differ significantly either in their susceptibility to reduction or in their Lewis type acidity. Because their microstructure differs significantly, a size effect may therefore be responsible for the differences in activity.
