| Attributes | Values |
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| rdf:type
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| Description
| - Katalytická aktivita zeolitů různých strukturních typů s rozdílnou koncentrací kyselých center byla studována na acylační reakci toluenu. Acylace toluenu s deriváty isobutyrové kyseliny probíhala v kapalné fázi. Nejvyšší konverze isobutyryl chloridu nebo anhydridu kyseliny isobutyrové bylo dosaženo na zeolitu beta a zeolitu Y se střední koncentrací kyselých center. Obecně konverze acylačních činidel roste s rostoucím rozměrem pórů zeolitů a dimenzí kanálového systému. Širokoporézní zeolity s trojrozměrnou kanálovou strukturou umožňují snadnější desorpci a transport rozměrného isopropyltolyl ketonu. Bylo zjištěno, že vyšší počáteční rychlosti acylace je dosaženo s anhydridem kyseliny isobutyrové. (cs)
- Zeolite catalysts of various structures and type and concentration of acid sites were investigated in a liquid phase acylation of toluene with derivatives of isobutyric acid. The highest conversions of isobutyryl chloride or isobutyric anhydride were obtained over three-dimensional large pore zeolite Beta and zeolite Y possessing medium concentration of acid sites. In general, the conversion of acylating agents increases with increasing pore size diameter and dimensionality of the channel system. Large-pore zeolites with three-dimensional channel system enable easier desorption and transport of bulky isopropyltolyl ketone. The activity of the zeolites used can be also controlled by tailoring their hydrophobic/hydrophilic properties. The higher initial rate of toluene acylation with isobutyric anhydride compared to isobutyryl chloride was found. However, only one possible acylating group of isobutyric anhydride is used for acylation reaction.
- Zeolite catalysts of various structures and type and concentration of acid sites were investigated in a liquid phase acylation of toluene with derivatives of isobutyric acid. The highest conversions of isobutyryl chloride or isobutyric anhydride were obtained over three-dimensional large pore zeolite Beta and zeolite Y possessing medium concentration of acid sites. In general, the conversion of acylating agents increases with increasing pore size diameter and dimensionality of the channel system. Large-pore zeolites with three-dimensional channel system enable easier desorption and transport of bulky isopropyltolyl ketone. The activity of the zeolites used can be also controlled by tailoring their hydrophobic/hydrophilic properties. The higher initial rate of toluene acylation with isobutyric anhydride compared to isobutyryl chloride was found. However, only one possible acylating group of isobutyric anhydride is used for acylation reaction. (en)
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| Title
| - On the Role of Zeolite Structure and Acidity in Toluene Acylation with Isobutyric Acid Derivatives
- On the Role of Zeolite Structure and Acidity in Toluene Acylation with Isobutyric Acid Derivatives (en)
- Vliv struktury různých typů zeolitů a jejich kyselosti na acylaci toluenu deriváty isobutyrové kyseliny (cs)
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| skos:prefLabel
| - On the Role of Zeolite Structure and Acidity in Toluene Acylation with Isobutyric Acid Derivatives
- On the Role of Zeolite Structure and Acidity in Toluene Acylation with Isobutyric Acid Derivatives (en)
- Vliv struktury různých typů zeolitů a jejich kyselosti na acylaci toluenu deriváty isobutyrové kyseliny (cs)
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| skos:notation
| - RIV/61388955:_____/04:00101103!RIV/2005/AV0/A54005/N
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GA203/03/0804), P(KJB4040402), Z(AV0Z4040901), Z(MSM 223100001)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/04:00101103
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - toluene acylation; isopropyltolyl ketone; zeolite catalysts (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Čejka, Jiří
- Červený, L.
- Klisáková, Jana
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| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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