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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 11
BKCSDE 35(11)
November 20, 2014

Title	Lanthanum Oxide-catalyzed Transesterification of Dimethyl Carbonate with Glycerol: Effect of Surfactant
Author	Seung Rok Lim, Sang Deuk Lee, Hoon Sik Kim, Fidelis Stefanus Hubertson Simanjuntak, Hyunjoo Lee
Keywords	Glycerol, Dimethyl carbonate, Glycerol carbonate, Lanthanum oxide, Surfactant
Abstract	Three kinds of lanthanum oxides (La2O3) were synthesized from different methods and used as a catalyst in the transesterification of dimethyl carbonate (DMC) with glycerol for the synthesis of glycerol carbonate (GLC). Lanthanum oxide synthesized using a surfactant (S-La) showed a much higher GLC yield of 89.9% compared to other lanthanum oxides synthesized by calcination (C-La) and precipitation (P-La) at the reaction conditions of 90 °C, DMC/glycerol = 2, and catalyst/glycerol = 5 wt %. The best catalyst was obtained when the surfactant/La weight ratio was 12. XRD study revealed that S-La has large amount of monoclinic and hexagonal La2O2CO3 phases, which are assumed as active sites of the catalyst for the reaction.
Page	3163 - 3168
Full Text	PDF / Supporting Information

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