Obtaining glucose-based 5-hydroxymethylfurfural on large-pore zeolites

Obtaining such substances-platforms as, in particular, 5-hydroxymethylfurfural is one of the areas most actively investigated at present. They can act as raw materials for further production a new generation biopolymers, fuels, pharmaceuticals, dietary supplements, and other chemicals. This paper reports catalysts, synthesized by using methods ion exchange impregnation, based on large-pore zeolites X, Y, M, which contain cations rubidium, lanthanum, calcium, ammonium. It was found that zeolites' specific surface 400?500 m2/g; selected synthesis conditions did not cause noticeable destruction microporous structure. In presence glucose dehydration aqueous medium dimethyl sulfoxide carried out 150–160 °C. The higher efficiency polycationic forms non-aqueous has been established. latter case, 40 % yield achieved an almost complete conversion. Deactivated catalyst samples were infrared spectroscopy differential thermal analysis/thermogravimetry. accumulates fewer oligomerization process by-products when reaction implemented sulfoxide. loss mass deactivated 30?33 %, while – up to 24 %. obtained results are important practical application only volatile conversion product with That acceptable possible implementation one-stage obtaining future