This HTML5 document contains 47 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Namespace Prefixes

PrefixIRI
n14http://linked.opendata.cz/resource/domain/vavai/vysledek/RIV%2F61388955%3A_____%2F07%3A00091836%21RIV08-AV0-61388955/
dctermshttp://purl.org/dc/terms/
n16http://linked.opendata.cz/resource/domain/vavai/riv/tvurce/
n15http://linked.opendata.cz/ontology/domain/vavai/
n9http://linked.opendata.cz/resource/domain/vavai/zamer/
shttp://schema.org/
skoshttp://www.w3.org/2004/02/skos/core#
n4http://linked.opendata.cz/ontology/domain/vavai/riv/
n2http://linked.opendata.cz/resource/domain/vavai/vysledek/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n5http://linked.opendata.cz/ontology/domain/vavai/riv/klicoveSlovo/
n17http://linked.opendata.cz/ontology/domain/vavai/riv/duvernostUdaju/
xsdhhttp://www.w3.org/2001/XMLSchema#
n13http://linked.opendata.cz/ontology/domain/vavai/riv/jazykVysledku/
n10http://linked.opendata.cz/ontology/domain/vavai/riv/aktivita/
n12http://linked.opendata.cz/ontology/domain/vavai/riv/obor/
n6http://linked.opendata.cz/ontology/domain/vavai/riv/druhVysledku/
n11http://reference.data.gov.uk/id/gregorian-year/

Statements

Subject Item
n2:RIV%2F61388955%3A_____%2F07%3A00091836%21RIV08-AV0-61388955
rdf:type
n15:Vysledek skos:Concept
dcterms:description
Pyridine and its methyl derivatives were synthesized in vapor phase from ethanol, formaldehyde and ammonia over zeolites H-ZSM-5, Beta, mordenite and over SiO2. Both the Si/Al molar ratio and modification of zeolite with zinc strongly influenced the selectivity in pyridine and alkylpyridines formation. The highest yield of pyridine was obtained over ZSM-5 modified with zinc and the highest pyridine-to-alkylpyridines ratio was achieved over H-ZSM-5 with high Si content (Si/Al ratio 140). The conversion of ethanol and the selectivity in pyridine formation were correlated with the acidity of used catalyst. Pyridine and its methyl derivatives were synthesized in vapor phase from ethanol, formaldehyde and ammonia over zeolites H-ZSM-5, Beta, mordenite and over SiO2. Both the Si/Al molar ratio and modification of zeolite with zinc strongly influenced the selectivity in pyridine and alkylpyridines formation. The highest yield of pyridine was obtained over ZSM-5 modified with zinc and the highest pyridine-to-alkylpyridines ratio was achieved over H-ZSM-5 with high Si content (Si/Al ratio 140). The conversion of ethanol and the selectivity in pyridine formation were correlated with the acidity of used catalyst. Pyridin a jeho methylové deriváty byly syntetizovány v plynné fázi z ethanolu, formaldehydu a amoniaku. Reakce byla katalyzována několika typy zeolitů (H-ZSM-5, Beta, Mordenit) a SiO2. Selektivitu vzniku pyridinu i alkylpyridinů byla silně ovlivňována jednak poměrem Si/Al a také modifikací zeolitů zinkem. Nejvyšší výtěžek pyridinu byl získán reakcí katalyzovanou zeolitem ZSM-5 modifikovaným zinkem a nejvyššího poměru pyridin/alkylparidiny bylo dosaženo při použití H-ZSM-5 s vysokým obsahem křemíku (Si/Al 140).
dcterms:title
Syntéza pyridinů v plynné fázi na zeolitech Synthesis of pyridines over zeolites in gas phase Synthesis of pyridines over zeolites in gas phase
skos:prefLabel
Synthesis of pyridines over zeolites in gas phase Syntéza pyridinů v plynné fázi na zeolitech Synthesis of pyridines over zeolites in gas phase
skos:notation
RIV/61388955:_____/07:00091836!RIV08-AV0-61388955
n4:strany
618;628
n4:aktivita
n10:R n10:Z
n4:aktivity
R, Z(AV0Z40400503)
n4:cisloPeriodika
5-6
n4:dodaniDat
n11:2008
n4:domaciTvurceVysledku
n16:2410044 n16:7016662
n4:druhVysledku
n6:J
n4:duvernostUdaju
n17:S
n4:entitaPredkladatele
n14:predkladatel
n4:idSjednocenehoVysledku
453949
n4:idVysledku
RIV/61388955:_____/07:00091836
n4:jazykVysledku
n13:eng
n4:klicovaSlova
pyridine; pyridine bases; ZSM-5; ethanol
n4:klicoveSlovo
n5:pyridine%20bases n5:pyridine n5:ethanol n5:ZSM-5
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[83A471806B42]
n4:nazevZdroje
Collection of Czechoslovak Chemical Communications
n4:obor
n12:CF
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
5
n4:rokUplatneniVysledku
n11:2007
n4:svazekPeriodika
72
n4:tvurceVysledku
Bejblová, Martina Slobodník, M. Cvengrošová, Z. Hronec, M. Čejka, Jiří
n4:zamer
n9:AV0Z40400503
s:issn
0010-0765
s:numberOfPages
11