Journal
SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN
Volume 22, Issue -, Pages 209-213Publisher
JAPAN ASSOC SOLVENT EXTRACTION
DOI: 10.15261/serdj.22.209
Keywords
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Funding
- Ministry of Education, Culture, Sports, Science and Technology, Japan [25420813]
- Grants-in-Aid for Scientific Research [25420813] Funding Source: KAKEN
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The biological production of 1,3-propanediol from glycerol, which is a by-product in a bio-diesel production process, is of great interest. However, major difficulties still exist in downstream processing because 1,3-propanediol has a high boiling point. In this study, reactive extraction with aldehydes in the presence of a hydrophobic acidic ionic liquid as an acidic catalyst was used to extract 1,3-propanediol from an aqueous solution. Hydrophobic acidic ionic liquids have successfully played the role of acidic catalysts for acetalization as well as hydrochloric acid. Aromatic compounds as diluents were preferable for this acetalization. Conversion of 60 g/dm(3) of 1,3 propanediol reached 96% at a concentration of 4.0 mol/dm(3) of 1-butanal in toluene.
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