Novel Ion-Exchange Catalysts for Reactions Involving Lipophilic Reagents: Perspectives in the Reaction of Esterifications of Fatty Acids with Methanol

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F13%3A00395802" target="_blank" >RIV/67985858:_____/13:00395802 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11244-013-0021-6" target="_blank" >http://dx.doi.org/10.1007/s11244-013-0021-6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11244-013-0021-6" target="_blank" >10.1007/s11244-013-0021-6</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Novel Ion-Exchange Catalysts for Reactions Involving Lipophilic Reagents: Perspectives in the Reaction of Esterifications of Fatty Acids with Methanol

Popis výsledku v původním jazyce

New catalysts for the esterification of fatty acids with methanol have been obtained from a gel type polystyrene-divinylbenzene resin (2 % cross-linked). To this purpose the starting resin was first acylated with either acetyl, butyrroyl or capryloyl groups and then sulfonated with concentrated sulfuric acid. The acylation degree ranged from 51 to 82 % and the ion exchange capacity ranged from 2.87 to 4.16 mmol/g. These catalysts were tested in the esterification of stearic acid with methanol (solutionin edible oil: 5 % for the acid, 5 or 20 % for the alcohol) in a continuous glass reactor at 85 A degrees C. At high relatively methanol concentration the catalytic activity is mainly correlated to the degree of swelling of the catalysts and the best onewas the non-acylated benchmark (hence the most hydrophilic) material. At low methanol concentration the swelling is smaller and practically the same for all the catalysts. In spite of this their activity does not level down to the same v

Název v anglickém jazyce

Novel Ion-Exchange Catalysts for Reactions Involving Lipophilic Reagents: Perspectives in the Reaction of Esterifications of Fatty Acids with Methanol

Popis výsledku anglicky

New catalysts for the esterification of fatty acids with methanol have been obtained from a gel type polystyrene-divinylbenzene resin (2 % cross-linked). To this purpose the starting resin was first acylated with either acetyl, butyrroyl or capryloyl groups and then sulfonated with concentrated sulfuric acid. The acylation degree ranged from 51 to 82 % and the ion exchange capacity ranged from 2.87 to 4.16 mmol/g. These catalysts were tested in the esterification of stearic acid with methanol (solutionin edible oil: 5 % for the acid, 5 or 20 % for the alcohol) in a continuous glass reactor at 85 A degrees C. At high relatively methanol concentration the catalytic activity is mainly correlated to the degree of swelling of the catalysts and the best onewas the non-acylated benchmark (hence the most hydrophilic) material. At low methanol concentration the swelling is smaller and practically the same for all the catalysts. In spite of this their activity does not level down to the same v

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Topics in Catalysis

ISSN

1022-5528

e-ISSN

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Svazek periodika

56

Číslo periodika v rámci svazku

9-10

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

611-617

Kód UT WoS článku

000320500200013

EID výsledku v databázi Scopus

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