Mg-Al-Zn MIXED OXIDES AS EFFECTIVE CATALYSTS IN ALDOL CONDENSATIONS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913224" target="_blank" >RIV/60461373:22310/17:43913224 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Mg-Al-Zn MIXED OXIDES AS EFFECTIVE CATALYSTS IN ALDOL CONDENSATIONS
Original language description
A mixed oxide with Mg:Al ratio 3:1 was prepared by co-precipitation at constant pH value. This material was mixed with different amounts of zinc oxide. Content of zinc oxide in prepared materials varied from 4.9 wt.% to 47.7 wt.%. Prepared Mg-Al-Zn mixed oxides were analyzed using different techniques (XRF, ICP) to determine Mg:Al:Zn molar ratio. These materials were used as catalysts in aldol condensation of heptanal with substituted benzaldehydes Activity and selectivity in these reactions were evaluated with accent to influence of zinc amount on reaction course. The reaction of heptanal with substituted benzaldehydes gives a desired product of cross-aldol condensation and undesired product of heptanal autocondensation. Experiments showed that adding the zinc oxide to the catalyst caused the increase of reaction rate. Influence of zinc oxide amount in catalyst to selectivity to cross-aldol and autocondensation product was negligible.
Czech name
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Czech description
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Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 5th International Conference on Chemical Technology
ISBN
978-80-86238-65-4
ISSN
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e-ISSN
neuvedeno
Number of pages
5
Pages from-to
427-431
Publisher name
Česká společnost průmyslové chemie (ČSPCH)
Place of publication
Praha
Event location
Mikulov
Event date
Apr 10, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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