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Amphiphilic property of niobium oxyhydroxide for waste glycerol conversion to produce solketal

Paper ID Volume ID Publish Year Pages File Format Full-Text
53749 46982 2015 7 PDF Available
Title
Amphiphilic property of niobium oxyhydroxide for waste glycerol conversion to produce solketal
Abstract

•Amphiphilic catalysts were synthesized using NbCl5 in the presence of the cetyltrimethylammonium bromide.•The mass spectrometry showed that solketal was produced with high selectivity.•The surfactant introduction over the catalyst increases strongly the conversion capacity.

Amphiphilic catalysts are synthesized using NbCl5 in the presence of the CTAB (cetyltrimethylammonium bromide) to generate partial hydrophobicity to the catalysts. The partial hydrophobicity of the niobium oxyhydroxides improved the acetalization reaction of a residual glycerol from biodiesel production by decreasing the interaction between the water molecules and the acid sites of the catalyst. A waste glycerol conversion of 73% with a selectivity to solketal (2,2-dimethyl-[1,3]dioxolan-4-yl)methanol of 95% was obtained. Many reuses of the catalysts showed glycerol conversions between 70 and 80%.

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Keywords
Niobium; Amphiphilic properties; Acetalization; Waste glycerol
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Amphiphilic property of niobium oxyhydroxide for waste glycerol conversion to produce solketal
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 254, 1 October 2015, Pages 83–89
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Full-text PDF Download
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