The dehydration of fructose to 5-hydroxymethylfurfural efficiently catalyzed by acidic ion-exchange resin in ionic liquid
Macroporous strong-acid resin shows a higher activity than gel strong-acid resin, whose reason is that the molecules of fructose can enter into the inner of macroporous strong-acid resin due to its large porous diameter. [Display omitted] ► 93.0% yield of HMF in the dehydration of fructose was obtai...
Saved in:
Published in | Bioresource technology Vol. 133; pp. 347 - 353 |
---|---|
Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Kidlington
Elsevier Ltd
01.04.2013
Elsevier |
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | Macroporous strong-acid resin shows a higher activity than gel strong-acid resin, whose reason is that the molecules of fructose can enter into the inner of macroporous strong-acid resin due to its large porous diameter. [Display omitted]
► 93.0% yield of HMF in the dehydration of fructose was obtained in mild condition. ► The structure of resin has a remarkable effect on the dehydration of fructose. ► ILs with highly branched carbon chain are harmful for the formation of HMF.
The efficient dehydration of fructose to 5-hydroxymethylfurfural (HMF) was developed in ionic liquids (ILs) with acidic ion-exchange resins as catalyst. By screening different resins and ILs respectively, it was found that the structure of resins and ILs had a prominent effect on the dehydration of fructose. In 1-butyl-3-methylimidazolium chloride ([Bmim]Cl), D001-cc resin showed a high activity. And then the effects of reaction temperatures, dosages of D001-cc, and different initial fructose loadings on the dehydration of fructose were studied in detail. The system of D001-cc resin and [Bmim]Cl exhibited a constant activity at 75°C for 20min and a 86.2% yield of HMF was obtained after seven recycles. At 75°C for 20min, a 93.0% yield of HMF from the dehydration of fructose was obtained. |
---|---|
Bibliography: | http://dx.doi.org/10.1016/j.biortech.2013.01.038 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0960-8524 1873-2976 |
DOI: | 10.1016/j.biortech.2013.01.038 |