Safety 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 Disposable baby diapers waste derived catalyst for synthesizing glycerol carbonate by the transesterification of glycerol with dimethyl carbonate. Author is Wang, Song; Wang, Jianye; Sun, Pengliang; Xu, Lanlan; Okoye, Patrick U.; Li, Sanxi; Zhang, Linnan; Guo, Anbang; Zhang, Jin; Zhang, Ailing.
In this work, the superabsorbent polymer (SAP) in the disposable baby diapers waste (DBDW) was carbonized at different temperatures to prepare a series of base catalysts. The carbonization behavior of the SAP was examined by thermogravimetric anal. (TGA). The structure and morphol. of the as-prepared catalysts were investigated by field emission scanning electron microscope (FESEM), Fourier transform IR spectroscopy (FTIR), X-ray Diffraction (XRD), Brunauer-Emmet-Teller surface area measurement (BET), and acid-base titration technique. The catalytic ability of these catalysts in the transesterification reaction of glycerol with di-Me carbonate (DMC) was compared. Among them, the catalyst prepared by the carbonization of the SAP collected from the DBDW at 500 °C in nitrogen was the most suitable one for the synthesis of glycerol carbonate (GC) by the transesterification of glycerol with DMC. This catalyst showed good catalytic activity with the glycerol conversion of 95.6% and GC yield of 93.6%. Moreover, it exhibited high reusability after eight-time reuse in the reaction.
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