Catalytic Transformation of Biomass-Derived Hemicellulose Sugars by the One-Pot Method into Oxalic, Lactic, and Levulinic Acids Using a Homogeneous H2SO4 Catalyst

This article presents the conditions for conversion of hemicellulose with different contents C6 and C5 carbohydrates uronic acids based on OrganoCat process, abbreviations M1, M2, M3 are used. Homogenous catalysis sulfuric acid (VI) in concentration range 0.1–1 M was used study to determine its activity ability transform a mixture. The process carried out using one-pot technique temperature 100–250 °C 1–5 h. Based use chromatographic (HPLC-RID) together comparison standard substances, resulting chemical compounds were determined identified from post-reaction mixtures. degree covalence raw material, selectivity obtained compounds, yield lactic also determined. results, highest (64.57%) after 1 h M1 mixture at 100 0.1 as catalyst. formation oxalic observed, which is present all mixtures, regardless composition temperature, time. Its efficiency an average level 90%.