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- W4377029097 abstract "Abstract To handle huge amount of glycerol produced in biodiesel industry, glycerol is transformed to value-added products. In this regard, glycerol acetalization to solketal is industrially attractive. As in this process various by-products can be formed, designing highly selective catalysts is of great importance. In this line, we wish to report a novel catalyst that benefits from strong acidity, high specific surface area and thermal stability, which can selectively form solketal in glycerol acetalization. To prepare the catalyst, hierarchical zeolite was prepared via a novel method, in which partially delaminated NaY was treated with Pluronic®F-127 and then reacted with NH 4 NO 3 to furnish the H-form zeolite. Hierarchical faujasite was then achieved through calcination and template removal. Subsequently, it was functionalized with ionic liquid and used for the immobilization of heteropolyacid. The results indicated the importance of the mesoprosity of zeolite and the presense of ionic liquid functionality for achiveing high solketal yield. Moreover, among three investigated heteropolyacids, phosphomolybdic acid exhibited the highest catalytic activity. In fact, using 10 wt.% catalyst at 55°C and glycerol to acetone molar ratio of 1: 20, solketal with yield of 98% was furnished under solvent-less condition. Besides, the catalyst was recyclable with low leaching of heteropolyacid." @default.
- W4377029097 created "2023-05-19" @default.
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- W4377029097 date "2023-05-18" @default.
- W4377029097 modified "2023-09-27" @default.
- W4377029097 title "Heteropolyacid supported on on ionic liquid decorated hierarchical faujasite zeolite as an efficient catalyst for glycerol acetalization to solketal" @default.
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- W4377029097 doi "https://doi.org/10.21203/rs.3.rs-2927970/v1" @default.
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