Investigation of the first and second dehydroxylation of kaolinite

Kód výsledku v IS VaVaI

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RIV/60461373:22810/13:43895573

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Investigation of the first and second dehydroxylation of kaolinite

Popis výsledku v původním jazyce

The paper deals with the investigation of differences between the first and the second dehydroxylation of kaolinite by means of simultaneous thermal analysis (DSC-TG). The degree of conversion was calculated by integration of peak areas from DSC curves.Kinetic parameters such as activation energy (Ea) were calculated using simple isoconversional methods, and the order of reaction (n) was determined from peak values. It was proved that the temperature of peak at DSC curves shifts to lower temperatures with the increasing disorder of the kaolinite structure. The Ea values of the first dehydroxylation of kaolinite ranges from 149 to 162 kJ/mol. The Ea values of the second dehydroxylation are reaching 87 - 92 % of Ea values of the first dehydroxylation.

Název v anglickém jazyce

Investigation of the first and second dehydroxylation of kaolinite

Popis výsledku anglicky

The paper deals with the investigation of differences between the first and the second dehydroxylation of kaolinite by means of simultaneous thermal analysis (DSC-TG). The degree of conversion was calculated by integration of peak areas from DSC curves.Kinetic parameters such as activation energy (Ea) were calculated using simple isoconversional methods, and the order of reaction (n) was determined from peak values. It was proved that the temperature of peak at DSC curves shifts to lower temperatures with the increasing disorder of the kaolinite structure. The Ea values of the first dehydroxylation of kaolinite ranges from 149 to 162 kJ/mol. The Ea values of the second dehydroxylation are reaching 87 - 92 % of Ea values of the first dehydroxylation.

Druh

D - Stať ve sborníku

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Book of contributions 4th Joint Czech-Hungarian-Polish-Slovak Thermoanalytical Conference

ISBN

978-80-7395-603-5

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

201-204

Název nakladatele

Univerzita Pardubice

Místo vydání

Pardubice

Místo konání akce

Pardubice

Datum konání akce

24. 6. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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