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CuCl/phen/NMI in homogeneous carbonylation for synthesis of diethyl carbonate / Hui Xiong in Industrial & engineering chemistry research, Vol. 48 N° 24 (Décembre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10845–10849 Titre : CuCl/phen/NMI in homogeneous carbonylation for synthesis of diethyl carbonate : Highly active catalyst and corrosion inhibitor Type de document : texte imprimé Auteurs : Hui Xiong, Auteur ; Wanling Mo, Auteur ; Jianglin Hu, Auteur Année de publication : 2010 Article en page(s) : pp. 10845–10849 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : CuCl/phen/NMI--Homogeneous--Carbonylation--Synthesis--Diethyl--Carbonate--Highly--Active--Catalyst--Corrosion--Inhibitor Résumé : The effects of N-donor ligands on CuCl-catalyzed oxidative carbonylation of ethanol were investigated. It was found that 1,10-phenanthroline (phen) and N-methyl imidazole (NMI) exhibited a synergic effect on the catalytic activity. Catalytic efficiency of the CuCl system was enhanced dramatically, and corrosion of the reaction system was effectively inhibited when phen and NMI were simultaneously used as the ligands. Under the reaction conditions of cCuCl = 0.2 mol/L, nCu:nphen:nNMI = 2:1:1, T = 393 K, P = 2.4 MPa with PCO/PO2 = 2:1, and time = 3 h, conversion of ethanol and selectivity to diethyl carbonate (DEC) were 15.2% and 99.0%, respectively. As compared to pure CuCl, the catalytic activity of CuCl/phen/NMI is much higher (3.6-fold). Furthermore, the high catalytic activity could be kept for a long time of service during the reaction. Corrosion of CuCl was also inhibited by using phen and NMI as ligands. For example, the inhibition efficiencies of CuCl/phen/NMI catalyst system on stainless steel 304 and Hastelloy 5923 were 98.1% and 98.2%, respectively. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901139e [article] CuCl/phen/NMI in homogeneous carbonylation for synthesis of diethyl carbonate : Highly active catalyst and corrosion inhibitor [texte imprimé] / Hui Xiong, Auteur ; Wanling Mo, Auteur ; Jianglin Hu, Auteur . - 2010 . - pp. 10845–10849. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10845–10849 Mots-clés : CuCl/phen/NMI--Homogeneous--Carbonylation--Synthesis--Diethyl--Carbonate--Highly--Active--Catalyst--Corrosion--Inhibitor Résumé : The effects of N-donor ligands on CuCl-catalyzed oxidative carbonylation of ethanol were investigated. It was found that 1,10-phenanthroline (phen) and N-methyl imidazole (NMI) exhibited a synergic effect on the catalytic activity. Catalytic efficiency of the CuCl system was enhanced dramatically, and corrosion of the reaction system was effectively inhibited when phen and NMI were simultaneously used as the ligands. Under the reaction conditions of cCuCl = 0.2 mol/L, nCu:nphen:nNMI = 2:1:1, T = 393 K, P = 2.4 MPa with PCO/PO2 = 2:1, and time = 3 h, conversion of ethanol and selectivity to diethyl carbonate (DEC) were 15.2% and 99.0%, respectively. As compared to pure CuCl, the catalytic activity of CuCl/phen/NMI is much higher (3.6-fold). Furthermore, the high catalytic activity could be kept for a long time of service during the reaction. Corrosion of CuCl was also inhibited by using phen and NMI as ligands. For example, the inhibition efficiencies of CuCl/phen/NMI catalyst system on stainless steel 304 and Hastelloy 5923 were 98.1% and 98.2%, respectively. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901139e

CuCl/phen/NMI in homogeneous carbonylation for synthesis of diethyl carbonate / Hui Xiong in Industrial & engineering chemistry research, Vol. 48 N° 24 (Décembre 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10845–10849 Titre : CuCl/phen/NMI in homogeneous carbonylation for synthesis of diethyl carbonate : highly active catalyst and corrosion inhibitor Type de document : texte imprimé Auteurs : Hui Xiong, Auteur ; Wanling Mo, Auteur ; Jianglin Hu, Auteur Année de publication : 2010 Article en page(s) : pp. 10845–10849 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Ethanol  CuCl-catalyzed  oxidative  carbonylation  N-donor  ligands Résumé : The effects of N-donor ligands on CuCl-catalyzed oxidative carbonylation of ethanol were investigated. It was found that 1,10-phenanthroline (phen) and N-methyl imidazole (NMI) exhibited a synergic effect on the catalytic activity. Catalytic efficiency of the CuCl system was enhanced dramatically, and corrosion of the reaction system was effectively inhibited when phen and NMI were simultaneously used as the ligands. Under the reaction conditions of cCuCl = 0.2 mol/L, nCu:nphen:nNMI = 2:1:1, T = 393 K, P = 2.4 MPa with PCO/PO2 = 2:1, and time = 3 h, conversion of ethanol and selectivity to diethyl carbonate (DEC) were 15.2% and 99.0%, respectively. As compared to pure CuCl, the catalytic activity of CuCl/phen/NMI is much higher (3.6-fold). Furthermore, the high catalytic activity could be kept for a long time of service during the reaction. Corrosion of CuCl was also inhibited by using phen and NMI as ligands. For example, the inhibition efficiencies of CuCl/phen/NMI catalyst system on stainless steel 304 and Hastelloy 5923 were 98.1% and 98.2%, respectively. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901139e [article] CuCl/phen/NMI in homogeneous carbonylation for synthesis of diethyl carbonate : highly active catalyst and corrosion inhibitor [texte imprimé] / Hui Xiong, Auteur ; Wanling Mo, Auteur ; Jianglin Hu, Auteur . - 2010 . - pp. 10845–10849. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 24 (Décembre 2009) . - pp. 10845–10849 Mots-clés : Ethanol  CuCl-catalyzed  oxidative  carbonylation  N-donor  ligands Résumé : The effects of N-donor ligands on CuCl-catalyzed oxidative carbonylation of ethanol were investigated. It was found that 1,10-phenanthroline (phen) and N-methyl imidazole (NMI) exhibited a synergic effect on the catalytic activity. Catalytic efficiency of the CuCl system was enhanced dramatically, and corrosion of the reaction system was effectively inhibited when phen and NMI were simultaneously used as the ligands. Under the reaction conditions of cCuCl = 0.2 mol/L, nCu:nphen:nNMI = 2:1:1, T = 393 K, P = 2.4 MPa with PCO/PO2 = 2:1, and time = 3 h, conversion of ethanol and selectivity to diethyl carbonate (DEC) were 15.2% and 99.0%, respectively. As compared to pure CuCl, the catalytic activity of CuCl/phen/NMI is much higher (3.6-fold). Furthermore, the high catalytic activity could be kept for a long time of service during the reaction. Corrosion of CuCl was also inhibited by using phen and NMI as ligands. For example, the inhibition efficiencies of CuCl/phen/NMI catalyst system on stainless steel 304 and Hastelloy 5923 were 98.1% and 98.2%, respectively. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901139e