Sudzucker Aktiengesellschaft

Christine Kröner

Alireza Haji Begli

Ralf Riemenschnitter

Kay Mantyk

Markwart Kunz

Wolfgang Wach

Waldemar Tschilingiri

Wolfgang Kraus

Alain-Michel Graf

Ralph Cartarius

The present invention relates to a method for the production of 5-hydroxymethylfurfural (HMF), which converts a fructose-containing component using a catalytically active anolyte fraction, which has been produced by electrolysis of water, at a temperature of 90 to 200&#xb0; C. and for obtaining an HMF-containing product mixture, wherein advantageously a high HMF selectivity is achieved with significantly lower by-product formation.

HMF preparation catalysed by anolyte fraction

The present invention relates to a method for the production of 5-hydroxymethylfurfural (HMF), which converts a fructose-containing component using a catalyst system comprising a solution of a salt and acid mixture at a temperature of 90 to 200&#xb0; C. and leads to obtaining an HMF-containing product mixture, wherein advantageously a high HMF selectivity with significantly lower by-product formation is achieved at the same time.

Preparation of HMF catalyzed by a mixture of salt and acid

The invention relates to a method for producing 5-hydroxymethylfurfural (HMF) in a continuous process, which leads to the obtainment of an HMF fraction, a carbohydrate/acid fraction, a fructose fraction, and a levulinic-acid and formic-acid fraction and advantageously makes it possible, because of the purity of the obtained fractions, to return the fructose fraction obtained by means of the method directly to the production process and to use the other fractions in further-processing processes without the need for complex, additional purification steps.

HMF production method

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Kindenheim, Germany

Christine Kröner