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CaO-catalyzed synthesis of glycerol carbonate from glycerol and dimethyl carbonate: Isolation and characterization of an active Ca species
被引:152
|作者:
Simanjuntak, Fidelis Stefanus Hubertson
[1
,2
]
Kim, Tae Kyung
[1
]
Lee, Sang Deuk
[1
]
Ahn, Byoung Sung
[1
]
Kim, Hoon Sik
[3
,4
]
Lee, Hyunjoo
[1
,2
,3
,4
]
机构:
[1] Korea Inst Sci & Technol, Clean Energy Ctr, Seoul 136791, South Korea
[2] Univ Sci & Technol, Taejon 305355, South Korea
[3] Kyung Hee Univ, Dept Chem, Seoul 130701, South Korea
[4] Kyung Hee Univ, Res Inst Basic Sci, Seoul 130701, South Korea
关键词:
Glycerol;
Glycerol carbonate;
Dimethyl carbonate;
CaO;
Homogeneous catalyst;
SOLID BASE;
TRANSESTERIFICATION;
CALCIUM;
SOLVENT;
OIL;
D O I:
10.1016/j.apcata.2011.05.024
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The transesterification of dimethyl carbonate (DMC) with glycerol to produce glycerol carbonate was investigated in the presence of CaO under various reaction conditions. CaO was completely dissolved in the reaction mixture of glycerol and DMC in 5 min at 75 degrees C and at the molar ratio of glycerol/DMC/CaO of 1/2/0.01. The isolation and the characterization of the dissolved Ca species by means of TOF-SIMS, elemental analysis, and FT-IR revealed that an active species, Ca(C3H7O3)(OCO2CH3) is generated from the interaction of CaO with glycerol and DMC. The mechanistic pathways to the formations of Ca(C3H7O3)(OCO2CH3) and glycerol carbonate are discussed on the basis of experimental and spectroscopic results. (C) 2011 Elsevier B.V. All rights reserved.
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页码:220 / 225
页数:6
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