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Information × Registration Number 0223U000957, 0121U110419 , R & D reports Title Conversion of carbohydrates on solid catalysts into chemical compounds used in the production of biopolymers popup.stage_title Head Inshyna Olena Ihorivna, Кандидат хімічних наукMylin Artur Mykolaiovych, Кандидат хімічних наук Registration Date 22-01-2023 Organization State organization Institute of Sorption and Endoecology Problems of the National Academy of Sciences of Ukraine popup.description2 The search and synthesis of new effective bifunctional catalysts for the production of useful chemical compounds from renewable raw materials was carried out. It is shown that catalysts based on SnО2-ZnO/Al2O3, synthesized by a simple impregnation method, under optimal conditions provide 70% yield of methyl lactate, which is a precursor for obtaining polylactide. Vapor-phase oxidation of a 20% mixture of propylene glycol and methanol with air oxygen on a supported CeO2/Al2O3 catalyst at 210-220°C yielded methyl lactate with a yield of up to 70 wt.%. The reaction of the double cyclodehydration of D-sorbitol to isosorbitol, which is used for the production of biodegradable polymers, on sulfocationites in a vacuum (150-170 mbar) without a solvent was studied. It has been shown that sulfocationites Amberlyst 15 and KU-2-8 effectively catalyze the double cyclodehydration of D-sorbitol to isosorbide at 120-140°C in a batch reactor and provide 78-88% yield of isosorbide with complete conversion of sorbitol at 140°C in 3 hours. The catalytic conversion of wheat starch into butyl glycoside, which is a biodegradable surface-active substance, was studied on sulfocationite Amberlyst-15 in a rotary autoclave at 120-130°C for 4-6 hours, using a 15% suspension in the corresponding alcohol. It was found that at 130°C for 6 hours, with a mass ratio of catalyst to starch of 1:3.5, the yield of butyl glycosides is 83%. Product Description popup.authors Hes Nataliia Leonidivna Zabolotniy Yevhen popup.nrat_date 2023-01-22 Close