Results 211 to 220 of about 56,036 (238)
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Transesterification of Glycerol to Glycerol Carbonate Over Alkali Carbonate‐Carbon Hybrid Catalysts
ChemCatChemAbstractSodium‐containing polymers and rapeseed meal were utilized as precursors for carbon‐inorganic hybrid catalysts offering the advantages of easily accessible raw materials and a straightforward preparation process. The resulting catalysts comprised inorganic components dispersed within a carbonaceous matrix and exhibited basic properties.
Anna Malaika +2 more
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ChemSusChem, 2011
AbstractGlycerol carbonate can be readily synthesized from the oxidative carbonylation of glycerol catalyzed by PdCl2(phen) (phen=1,10‐phenanthroline) with the aid of CuI. High conversion (95 %) and selectivity (98 %) are achieved and the turnover frequency (TOF) reaches 455 h−1.
Jianglin, Hu +6 more
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AbstractGlycerol carbonate can be readily synthesized from the oxidative carbonylation of glycerol catalyzed by PdCl2(phen) (phen=1,10‐phenanthroline) with the aid of CuI. High conversion (95 %) and selectivity (98 %) are achieved and the turnover frequency (TOF) reaches 455 h−1.
Jianglin, Hu +6 more
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Reaction Kinetics, Mechanisms and Catalysis, 2010
The deactivation of alkali solid catalysts for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate was investigated. Calcium oxide, calcium hydroxide and calcium methoxide were chosen as the representatives of the alkali solid catalysts. When the catalysts were recycled, the yield of glycerol carbonate decreased dramatically.
Jiabo Li, Tao Wang
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The deactivation of alkali solid catalysts for the synthesis of glycerol carbonate from glycerol and dimethyl carbonate was investigated. Calcium oxide, calcium hydroxide and calcium methoxide were chosen as the representatives of the alkali solid catalysts. When the catalysts were recycled, the yield of glycerol carbonate decreased dramatically.
Jiabo Li, Tao Wang
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Synthesis of Glycerol Carbonate from Glycerol and Dimethyl Carbonate Using Ionic Liquid Catalysts
Journal of Biobased Materials and Bioenergy, 2016Acidic, basic and neutral ionic liquids (ILs) were prepared by two-step method. Their IR and NMR spectra showed that their structures were in accordance with their theoretical structure. Then these ILs were used as catalysts in the Glycerol carbonate (GC) of glycerol with dimethyl carbonate (DMC).
Miao, Changlin +6 more
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Glycerol carbonate synthesis from glycerol and dimethyl carbonate using guanidine ionic liquids
Chinese Journal of Chemical Engineering, 2017Abstract A large number of surplus glycerol from the biodiesel production can be used as renewable feedstock to produce glycerol carbonate. In this paper, a series of guanidine-based ionic liquids were synthesized to catalyze the transesterification of glycerol and dimethyl carbonate.
Xingxing Wang +4 more
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Synthesis of glycerol carbonate from glycerol and urea with gold-based catalysts
Dalton Transactions, 2011The reaction of glycerol with urea to form glycerol carbonate is mostly reported in the patent literature and to date there have been very few fundamental studies of the reaction mechanism. Furthermore, most previous studies have involved homogeneous catalysts whereas the identification of heterogeneous catalysts for this reaction would be highly ...
Hammond, Ceri +9 more
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Utilization of glycerol for the production of glycerol carbonate through greener route
Journal of Environmental Chemical Engineering, 2013Abstract Availability of glycerol is increased in recent years due to production of biodiesel. Glycerol carbonate, an important compound, can be manufactured using glycerol as a raw material. This work describes the synthesis of glycerol carbonate from glycerol via an enzymatic transesterification reaction using dimethyl carbonate as co-substrate and
Virendra Rathod
exaly +2 more sources
Catalytic Synthesis of Hydroxymethyl‐2‐oxazolidinones from Glycerol or Glycerol Carbonate and Urea
ChemSusChem, 2012AbstractOxazolidinones have been synthesized by reacting glycerol carbonate or glycerol with urea in the presence of γ‐Zr phosphate as a catalyst. The conversion yield of the polyol or its carbonate depends on the temperature. Below 408 K the selectivity is 100 % with a conversion of up to 25 %, whereas increasing the temperature means that conversion ...
Angela Dibenedetto +5 more
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Synthesis of Glycerol Carbonate from Glycerol, a By-Product of Biodiesel Production
International Journal of Chemical Reactor Engineering, 2009Methyl esters of fatty acids (also known as biodiesel) made from transesterification of vegetable oils and animal fats with methanol, have shown a lot of promise as alternative diesel fuels. Glycerol is the inevitable byproduct of transesterification process.
Zsanett Herseczki +2 more
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