Název:
Mutual Solubilities of Ammonium-Based Ionic Liquids with Water and with Water/Methanol Mixture
Autoři:
Machanová, Karolina ; Jacquemin, J. ; Wagner, Zdeněk ; Bendová, Magdalena Typ dokumentu: Příspěvky z konference Konference/Akce: International Congress of Chemical and Process Engineering CHISA 2012 and 15th Conference PRES 2012 /20./, Prague (CZ), 2012-08-25 / 2012-08-29
Rok:
2012
Jazyk:
eng
Abstrakt: This work presents a study on solubility in water and in water/methanol mixture of a set of ILs composed of the bi (trifluoromethylsulfonyl)imide anion and of the N-alkyl-triethyl-ammonium cation (abbrev. [NR222][NTf2]) with the alkyl chain R ranging from 6 to 14 carbons. These ILs were successfully tested for enantioselective hydrogenation of β-ketoesters catalyzed by the chiral complex Ru-BINAP in presence of methanol [1]. From which, it appears that these ILs immobilise the catalyst in the mixture for easier recycling and further re-use and protect it from air/oxygen. The final separation of the product is carried out by rinsing the solution with water, which may also wash out the ILs with catalyst. For this reason, mutual solubilities between ILs and water, as well as between ILs and methanol/water mixture need to be investigated in detail.
Klíčová slova:
homogeneous catalysis; solubilities; water/methanol mixture Číslo projektu: LH12020 (CEP) Poskytovatel projektu: GA MŠk Zdrojový dokument: Final Program, ISBN 978-80-905035-1-9 Poznámka: Související webová stránka: www.chisa.cz/2012
Práva: Dílo je chráněno podle autorského zákona č. 121/2000 Sb.