Quality Control of 4-(Hydroxymethyl)-1,3-dioxolan-2-one. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 4-(Hydroxymethyl)-1,3-dioxolan-2-one, is researched, Molecular C4H6O4, CAS is 931-40-8, about Production of glycerol carbonate from glycerol over modified sodium-aluminate-doped calcium oxide catalysts. Author is Chotchuang, Araya; Kunsuk, Pawitra; Phanpitakkul, Amornpun; Chanklang, Sarun; Chareonpanich, Metta; Seubsai, Anusorn.
Glycerol is a low-cost coproduct from the biodiesel production process. Currently, production of value-added products from glycerol is still of great interest. This research studied the production of glycerol carbonate (GLC) from the transesterification reaction of glycerol and di-Me carbonate (DMC) using modified sodium aluminate catalysts. Sodium aluminate was modified with CaO to increase its basicity and glycerol was also used as a template during catalyst preparation to increase its surface area. The results showed that sodium aluminate modified with CaO at 5% by weight (NA5Ca) and using 45% glycerol template by weight of NA5Ca (NA5Ca-45 G) produced the most active catalyst among those prepared By varying the operational parameters, the maximum GLC yield of NA5Ca-45 G was 90.5% with 100% selectivity, a catalyst content of 30% by weight of glycerol reactant, a glycerol:DMC molar ratio of 1:4, a reaction temperature of 70°C, and a reaction time of 3 h. The study of catalyst reusability revealed that NA5Ca-45 G has problems with agglomeration and a small amount of leaching, which require further study for their prevention.
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