HIGHLY EFFECTIVE IRONPORPHYRIN-IMMOBILIZED CATALYTIC SYSTEMS FOR THE PROCESSES OF HYDROXYLATION AND EPOXIDATION OF LOWER ALKANES AND ALKENES
Titel:
HIGHLY EFFECTIVE IRONPORPHYRIN-IMMOBILIZED CATALYTIC SYSTEMS FOR THE PROCESSES OF HYDROXYLATION AND EPOXIDATION OF LOWER ALKANES AND ALKENES
Auteur:
Nagiev, T. M. Gasanova, L. M. Zulfugarova, S. Z. Mustafaeva, Ch. A. Abbasov, A. A.
Verschenen in:
Chemical engineering communications
Paginering:
Jaargang 190 (2003) nr. 5-8 pagina's 726-748
Jaar:
2003-05-01
Inhoud:
The catalytic activity of the following samples in the hydroxylation reaction were studied: PPFe 3+ OH/AlSiCr, PPFe 3+ OH/AlSiMg, PPFe 3+ OH/Al 2 O 3 , and per-FTPhPFe 3+ OH/Al 2 O 3 . PPFe 3+ OH/AlSiMg-catalyzed methane hydroxylation yielded 46.5 wt% of methanol at a 48% methane conversion, at a maximum of 180°C. Per-FTPhPFe 3+ OH/Al 2 O 3 testing in propane hydroxylation by H 2 O 2 yielded 39.3 mol% of isopropanol. Per-FTPhPFe 3+ OH/Al 2 O 3 -catalyzed propylene oxidation by H 2 O 2 yielded 30 mol% of propylene oxide. PPFe 3+ OH/Al 2 O 3 -catalyzed propylene epoxidation yielded the following: the selectivity on the monooxygenase products is about 100%, the selectivity on propylene oxide - 59.2%, propylene conversion - 93.3%. The experimental research data revealed the fact that during the reaction of epoxidation per-FTPhPFe 3+ OH/Al 2 O 3 proved to be more stable under the influence of oxidizer and temperature than PPFe 3+ OH/Al 2 O 3 .