About: Direct Ammoxidation of Propane over Zeolites with Traces of Iron

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The performance of Fe-zeolites in ammoxidation of propane at 540 degrees C in presence of molecular oxygen, nitrous oxide or their mixture has been investigated. The results presented here clearly show ability of Fe-silicalites to catalyze direct ammoxidation of propane. Ammoxidation of propane takes place on special extraframework Fe ions exclusively generated by hydrolysis of framework Si-O-Fe bonds. Introduction of Fe ions into silicalite matrix by post-synthesis modification does not lead to an active catalyst for propane ammoxidation. The presence of aluminum atoms in the framework is disadvantageous for propane ammoxidation, in contrast to propane oxidative dehydrogenation by nitrous oxide, due to decomposition of acrylonitrile on strong acidic sites. The performance of Fe-zeolites in ammoxidation of propane at 540 degrees C in presence of molecular oxygen, nitrous oxide or their mixture has been investigated. The results presented here clearly show ability of Fe-silicalites to catalyze direct ammoxidation of propane. Ammoxidation of propane takes place on special extraframework Fe ions exclusively generated by hydrolysis of framework Si-O-Fe bonds. Introduction of Fe ions into silicalite matrix by post-synthesis modification does not lead to an active catalyst for propane ammoxidation. The presence of aluminum atoms in the framework is disadvantageous for propane ammoxidation, in contrast to propane oxidative dehydrogenation by nitrous oxide, due to decomposition of acrylonitrile on strong acidic sites. (en) Byla studována účinnost Fe-zeolitů v amoxidaci propanu při 540 °C v přítomnosti molekulárního kyslíku, oxidu dusného a jejich směsi. Výsledky jasně ukazují schopnost Fe-silikalitů katalyzovat přímou amoxidaci propanu. Tato reakce probíhá na mimomřížkových iontech železa generovaných výhradně hydrolýzou Si-O-Fe vazeb. Post-syntetické vnášení želůeza do silikalitu nevede k tvorbě aktivního katalyzátoru. Přítomnost hliníku v mřížce vede k rozkladu akrylonitrilu na acetonitril. (cs)
Title	Direct Ammoxidation of Propane over Zeolites with Traces of Iron Přímá amoxidace propanu na zeolitech se stopami železa (cs) Direct Ammoxidation of Propane over Zeolites with Traces of Iron (en)
skos:prefLabel	Direct Ammoxidation of Propane over Zeolites with Traces of Iron Přímá amoxidace propanu na zeolitech se stopami železa (cs) Direct Ammoxidation of Propane over Zeolites with Traces of Iron (en)
skos:notation	RIV/00216275:25310/07:00005914!RIV08-MSM-25310___
http://linked.open.../vavai/riv/strany	233-237
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA104/07/0214), S, Z(MSM0021627501)
http://linked.open...iv/cisloPeriodika	1-4
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Bulánek, Roman
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Pardubice / Fakulta chemicko-technologická
http://linked.open...dnocenehoVysledku	417436
http://linked.open...ai/riv/idVysledku	RIV/00216275:25310/07:00005914
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Oxidative Dehydrogenation; Nitrous-oxide; Fe-MFI Zeolites; Acrylonitrile; Acetonitrile (en)
http://linked.open.../riv/klicoveSlovo	Acrylonitrile Oxidative Dehydrogenation Fe-MFI Zeolites Nitrous-oxide Acetonitrile
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[F5EAE22BC8DE]
http://linked.open...i/riv/nazevZdroje	Topics in Catalysis
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Micro- and mesoporous support anchored oxide catalysts for the selective oxidation of C3 and C4 alkanes
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	45
http://linked.open...iv/tvurceVysledku	Bulánek, Roman Částek, František
http://linked.open...n/vavai/riv/zamer	Aimed preparation of special compounds and materials and investigation of their physical and chemical properties and supramolecular structures
issn	1022-5528
number of pages	5 (xsd:int)
http://localhost/t...ganizacniJednotka	25310
is http://linked.open...avai/riv/vysledek of	Direct Ammoxidation of Propane over Zeolites with Traces of Iron Direct Ammoxidation of Propane over Zeolites with Traces of Iron Direct Ammoxidation of Propane over Zeolites with Traces of Iron

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