Preparation of 5‐Hydroxymethylfurfural Part I. Dehydration of Fructose in a Continuous Stirred Tank Reactor

Kuster, B.F.M.; Steen, Harald

doi:10.1002/star.19770290306

Cited by 65 publications

(53 citation statements)

References 3 publications

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“…Fructose which is a most common ketohexose was widely studied as a substrate for HMF synthesis [12][13][14][15][16]. HMF is easily formed from fructose in the presence of liquid acid such as H 2 SO 4 and HCl in aprotic polar solvents including dimethyl sulfoxide (DMSO).…”

Section: Synthesis Of 5-hydroxymethylfurfural By Using Homogeneous Camentioning

confidence: 99%

Catalytic Transformations of Biomass-Derived Materials into Value-Added Chemicals

2012

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This manuscript reviews recent literatures on synthesis of furfurals (5-hydroxymethylfurfural, furfural, 5-methyl-2-furaldehyde) from various sugars (glucose, fructose, D-galactose, D-arabinose, xylose, L-rhamnose, lactose, cellobiose, sucrose) and furfural conversions into other carbonyl compounds (2,5-diformylfuran, 2,5-furandicarboxylic acid, levulinic acid, succinic acid) using catalytic methodology. Our recent achievements on one-pot synthesis of furfurals using solid acid and base catalysts and selective oxidations of furfurals using heterogeneous catalysts are also included.

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Section: Synthesis Of 5-hydroxymethylfurfural By Using Homogeneous Camentioning

confidence: 99%

Catalytic Transformations of Biomass-Derived Materials into Value-Added Chemicals

2012

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“…The isolation of biotechnologyderived chemical products from the reaction medium (e.g., fermentation broth) remains a challenging issue. Several studies considered integrating an in-situ liquid-liquid extraction step into the total production processes [5][6][7][8]. In-situ extraction uses an extractive solvent that is partly immiscible with the reaction solvent (mostly water) in order to separate the desired product from the reaction medium.…”

Section: Introductionmentioning

confidence: 99%

Influence of electrolytes on liquid-liquid equilibria of water/1-butanol and on the partitioning of 5-hydroxymethylfurfural in water/1-butanol

Mohammad

Grundl

Müller

et al. 2016

Fluid Phase Equilibria

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“…Biphasic systems, in which a waterimmiscible organic solvent is added to extract continuously the HMF from the aqueous phase, offer an important advantage in that the product is separated from the reactant and reaction intermediates and is thereby protected against degradation reactions. However, most extracting solvents used show poor partitioning of HMF into the organic phase [13][14][15][16][17][18][19]. Recently, we developed a catalytic strategy for the production of HMF in high yields from concentrated fructose solutions in a biphasic reactor by increasing the partitioning of HMF into the organic phase [20].…”

Section: Introductionmentioning

confidence: 99%

Solvent Effects on Fructose Dehydration to 5-Hydroxymethylfurfural in Biphasic Systems Saturated with Inorganic Salts

2009

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Furan derivatives, such as 5-hydroxymethylfurfural (HMF), obtained from acid-catalyzed dehydration of carbohydrates, can serve as renewable chemical platforms for the production of fuels and chemical intermediates. Addition of an inorganic salt to concentrated aqueous solutions of fructose (30 wt% fructose on salt free basis) in biphasic systems containing an organic extracting phase improves HMF yields by increasing the partitioning of HMF into the extracting phase, as measured by the partition coefficient, R, equal to the concentration of HMF in the organic phase normalized by the concentration in the aqueous phase. We have studied the impact of solvent choice on HMF yield using primary and secondary alcohols, ketones, and cyclic ethers in the C 3 -C 6 range as extracting solvents in biphasic systems saturated with NaCl. Biphasic systems containing C 4 solvents generated the highest HMF yields within each solvent class. Tetrahydrofuran demonstrated the best combination of high HMF selectivity (83%) and high extracting power (R = 7.1) at 423 K. The presence of NaCl provided the additional benefit of creating biphasic systems using solvents that are completely miscible with water in the absence of salt. We have also studied the impact of different salts on HMF yield in systems using 1-butanol as the extracting solvent. Na ? and K ? showed the best combination of extracting power and HMF selectivity of the monovalent and divalent chloride salts tested. Changing the anion of the salt from Cl -to Br -resulted in R-values and HMF selectivity values resembling the non-salt system, while changing to the SO 4 2-divalent species generated a high R-value (8.1), but a low HMF selectivity value (71%).

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Preparation of 5‐Hydroxymethylfurfural Part I. Dehydration of Fructose in a Continuous Stirred Tank Reactor

Cited by 65 publications

References 3 publications

Catalytic Transformations of Biomass-Derived Materials into Value-Added Chemicals

Catalytic Transformations of Biomass-Derived Materials into Value-Added Chemicals

Influence of electrolytes on liquid-liquid equilibria of water/1-butanol and on the partitioning of 5-hydroxymethylfurfural in water/1-butanol

Solvent Effects on Fructose Dehydration to 5-Hydroxymethylfurfural in Biphasic Systems Saturated with Inorganic Salts

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