PRODUCTION OF 5-HYDROXYMETHYLFURFURAL (HMF) VIA FRUCTOSE DEHYDRATION: EFFECT OF SOLVENT AND SALTING-OUT
نویسندگان
چکیده
منابع مشابه
Conversion of fructose into 5-hydroxymethylfurfural (HMF) and its derivatives promoted by inorganic salt in alcohol.
The conversion of D-fructose to 5-hydroxymethylfurfural (HMF) on a 1 mmol scale was achieved in good yield (68%) using NH(4)Cl as catalyst in isopropanol at 120°C. About 3% of 5-i-propoxymethylfurfural was formed. The reaction in ethanol at 100°C on a 10g scale gave a total yield of HMF and 5-ethoxymethylfurfural of 42%. No mineral acid such as H(2)SO(4) and HCl are required.
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5-Hydroxymethylfurfural (5-HMF) is an important bio-sourced intermediate, 17 formed from carbohydrates such as glucose or fructose. The treatment at 150–250 °C of 18 glucose or fructose in pure water and batch conditions, with catalytic amounts of most of 19 the usual acid-basic solid catalysts, gave limited yields in 5-HMF, due mainly to the fast 20 formation of soluble oligomers. Niobic acid,...
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15 صفحه اولEffects of cations and anions of ionic liquids on the production of 5-hydroxymethylfurfural from fructose.
Ionic liquids (ILs) with different cations and anions were used to study the effects on 5-hydroxymethylfurfural (HMF) preparation. It was found that both aggregations of cations and hydrogen bonds of anions with fructose played important roles. Molecular dynamics simulations were also performed to explain the experimental results.
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ژورنال
عنوان ژورنال: Brazilian Journal of Chemical Engineering
سال: 2015
ISSN: 0104-6632
DOI: 10.1590/0104-6632.20150321s00002914