Method for the Isomerisation of Glucose into Fructose

摘要

The invention relates to a method for the isomerisation of glucose into fructose in water in the presence of a solid base catalyst characterised by its reversibility of CO2 adsorption at a low temperature, the catalyst being a catalyst comprising at least one supported or non-supported lanthanide oxide or a molecular sieve based on silicon containing the organic template thereof. The invention also relates to a method for preparing HMF from glucose, comprising the isomerisation of glucose into fructose.

主权项

1. A method for isomerisation of glucose into fructose in water in the presence of a solid basic catalyst, characterized by the reversibility of the CO2 adsorption isotherms at low temperature, notably at 30° C. and preferably a differential CO2 adsorption heat, measured at 30° C., comprised between 60 and 110 kJ·mol−1, preferably between 75 and 90 kJ·mol−1, the catalyst being a catalyst comprising at least one scandium oxide or one lanthanide oxide selected from the chemical elements with atomic number from 57 to 71, either supported or not supported or a molecular sieve based on silicon containing its organic template.