THE METHOD OF GLYCERIC ACID SELECTIVE PREPARATION AND CATALYSTS FOR ITS REALIZATION

摘要

The present invention relates to chemical technology, particularly to the glyceric acid preparation method in process of selective glycerol oxidation in presence of new supported Pd catalyst. Object matter of this invention is increasing glyceric acid yield and selectivity of process using economical and environmentally safe methods, as well as utilization of bio-diesel manufacturing byproduct - glycerol. Glycerol oxidation is performed in alkaline water solutions by oxygen's pressure of 1 to 10 bars. There are used barbotage type or closed batch type reactors, or in autoclaves. Glyceric acid is obtained with yield more than 69 percent and with high selectivity. The developed new method of supported catalysts synthesis is extraction-pyrolysis type method. The new method of synthesis of glyceric acid and catalysts is simple, economical and environmentally safe.