Teng, Wai Keng; Yusoff, Rozita; Aroua, Mohamed Kheireddine; Ngoh, Gek Cheng published an article about the compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one( cas:931-40-8,SMILESS:O=C1OCC(CO)O1 ).HPLC of Formula: 931-40-8. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:931-40-8) through the article.
The production of glycerol carbonate (GC) from industrial grade crude glycerol was catalyzed by calcium oxide (CaO) via microwave assisted transesterification (MAT). Influencing process parameters including reaction temperature, time and molar ratio of di-Me carbonate/glycerol (DMC/Gly) were examined and optimized by applying Box Behnken Design (BBD). The reaction was modeled into a reduced cubic model with good predictive accuracy. A high GC yield of 99.5% was achieved with 1 wt% CaO at optimized conditions such as reaction temperature of 65°C, reaction time of 3 min and DMC/Gly molar ratio of 2.5. The study performed on the reaction kinetics suggests that the reaction follows an irreversible second order rate equation. A relatively low activation energy of 4.53 kJ mol-1 was determined for the microwave assisted transesterification of crude glycerol for the production of GC. The values of rate constants between 45°C to 65°C were in the range of 0.023-0.026 L mol-1 min-1, which are of one magnitude order higher than that of the conventional heating.
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