Synthesis of isomorphously substituted extra-large pore UTL zeolites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F12%3A00378723" target="_blank" >RIV/61388955:_____/12:00378723 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1039/C2JM31725G" target="_blank" >http://dx.doi.org/10.1039/C2JM31725G</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/C2JM31725G" target="_blank" >10.1039/C2JM31725G</a>

Result language
angličtina
Original language name
Synthesis of isomorphously substituted extra-large pore UTL zeolites
Original language description
The influence of various synthesis parameters (e.g. gel composition, pH of the reaction mixture, duration of crystallization) on the phase selectivity of zeolite formation in germanosilicate reaction medium in the presence of different three-valent heteroatoms (B, Al, Ga, Fe or In) was systematically studied and compared with a controlled crystallization from pure germanosilicate media. The boundary conditions of the formation of the pure phase of isomorphously substituted extra-large pore zeolite UTL were established. In the presence of 1 mol% of the respective heteroelement in the initial gel the pH borders of UTL formation are found to be 7.5?11.9 for Fe-, 7.8?12.0 for B-, 8.2?11.0 for Ga-, 11.0?12.0 for In-, and 11.3?12.0 for Al-containing reactionmixtures. The maximum concentration of heteroelements in the reaction mixture for the successful synthesis of UTL is 1.5 mol% for Al and Ga, 6 mol% for In, and 13 mol% for B. The size of UTL crystals decreases in the order Al- > In- > Ga
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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