FIELD: chemistry.
SUBSTANCE: invention relates to a method for selective oxidation of D-glucose in aqueous solution by bubbling pure oxygen at atmospheric pressure in the presence of an alkalising agent and a catalyst containing nano-dispersed particles of ruthenium metal on a support, where the support is super-crosslinked polystyrene which is pre-saturated with a ruthenium salt RuOHCl3 with concentration of 1.100-111.1 mg/l. The disclosed method can be used in chemical, food and pharmaceutical industry to obtain calcium gluconate and D-arabinose.
EFFECT: method enables to obtain a salt of D-gluconic acid with output of approximately 95% with retention of high activity and stability of the catalyst for 15 working cycles.
2 cl, 7 ex, 1 tbl
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