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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F08%3A00020342%21RIV09-MSM-22310___
rdf:type
skos:Concept n12:Vysledek
dcterms:description
4-methoxybenzaldehyde (4-MBA) is a valuable compound used in detergents, perfumes, insect attractants and in synthesis of drugs. It is produced by selective electrochemical methoxylation from 4 methylanisole (4 MA) through an intermediate product, 4 methoxybenzylmethyl ether. This well optimized process is one of core technologies for BASF. Reaction is performed continuously in capillary gap cell with low conversion in one though-put and recycle of the electrolyte. In consequence, electrolyte mixture has to be used in recycle mode what increases separation cost. This problem can be solved utilizing improved electrochemical cell design and electrochemical system providing higher process kinetics and selectivity. One of the most important aspects is a selection of a proper supporting electrolyte. This requires understanding of a reaction mechanism and kinetics. Wide group of salts has been studied until now. So far KF has been quoted as the best option for mentioned process. Superiority of KF was also 4-methoxybenzaldehyd je cenná látka používaná při výrobě detergentů, parfémů, atraktantů a léčiv. Výrábí se selektivní elektrochemickou methoxylací 4-methylnisolu. Uvedený proces patří ke klíčovým technologiím BASF. Relativně novou a pro elektrochemii zajímavou skupinu látek představují tzv. iontové kapaliny. Jsou to nízkoteplotní taveniny solí, řada z nich je kapalná již pži pokojové teplotě. V této práci bylo studováno možné použití iontových kapalin při výrobě 4-methoxybenzaldehydu. Kinetika, reakční mechanismus a selektivita reakce byly studovány u dvou systémů: Triethylsulfonium bis(trifluoromethylsulfonyl)imid and N,N-Butylmethylpyrrolidinium bis(trifluoromethylsulfonyl)imid. Naměřené lineární voltamogramy psoloužily k určení kinetiky elektrodové reakce. Selektivita reakce pro požadovaný product byla určena z galvanostatických elektrolýz. 4-methoxybenzaldehyde (4-MBA) is a valuable compound used in detergents, perfumes, insect attractants and in synthesis of drugs. It is produced by selective electrochemical methoxylation from 4 methylanisole (4 MA) through an intermediate product, 4 methoxybenzylmethyl ether. This well optimized process is one of core technologies for BASF. Reaction is performed continuously in capillary gap cell with low conversion in one though-put and recycle of the electrolyte. In consequence, electrolyte mixture has to be used in recycle mode what increases separation cost. This problem can be solved utilizing improved electrochemical cell design and electrochemical system providing higher process kinetics and selectivity. One of the most important aspects is a selection of a proper supporting electrolyte. This requires understanding of a reaction mechanism and kinetics. Wide group of salts has been studied until now. So far KF has been quoted as the best option for mentioned process. Superiority of KF was also
dcterms:title
Ionic liquids as potential electrolytes for the anodic oxidation of 4-methylanisole Ionic liquids as potential electrolytes for the anodic oxidation of 4-methylanisole Iontové kapaliny jako potenciální elektrolyty pro anodickou oxidaci 4-methylanisolu
skos:prefLabel
Ionic liquids as potential electrolytes for the anodic oxidation of 4-methylanisole Iontové kapaliny jako potenciální elektrolyty pro anodickou oxidaci 4-methylanisolu Ionic liquids as potential electrolytes for the anodic oxidation of 4-methylanisole
skos:notation
RIV/60461373:22310/08:00020342!RIV09-MSM-22310___
n3:aktivita
n11:R
n3:aktivity
R
n3:dodaniDat
n15:2009
n3:domaciTvurceVysledku
n13:2059428
n3:druhVysledku
n17:D
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
373283
n3:idVysledku
RIV/60461373:22310/08:00020342
n3:jazykVysledku
n14:eng
n3:klicovaSlova
4-methylanisole; anodic methoxylation; electrode kinetics; ionic liquids
n3:klicoveSlovo
n4:electrode%20kinetics n4:ionic%20liquids n4:4-methylanisole n4:anodic%20methoxylation
n3:kontrolniKodProRIV
[5D6675E5198B]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
Proceedings of 8th European Symposium on Electrochemical Engineering
n3:obor
n18:CG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
2
n3:rokUplatneniVysledku
n15:2008
n3:tvurceVysledku
Bouzek, Karel Bystroň, Tomáš
n3:typAkce
n16:WRD
n3:zahajeniAkce
2008-08-24+02:00
s:numberOfPages
13
n20:hasPublisher
Ing. Jan Novosad, Procesní inženýrství
n19:isbn
978-80-02-02053-0
n9:organizacniJednotka
22310