FIELD: chemistry.
SUBSTANCE: what is provided is heterogenic catalytic decomposition of process media containing oxalate ions having the concentration of 16-18 g/l (complexing agents (up to 2 g/l), surfactant (up to 50 mg/l)) and nitric acid (up to 60 g/l) on a platinum catalyst applied on anion exchange resin VP-1AP (0.05-2 wt % of platinum). The effect is achieving a degree of decomposition of oxalate ions, complexing agents, surfactants up to 99.9%, in the residual concentrations - less than 10 mg/l in oxalate ions and less than 1 mg/l in complexing agent (EDTA, Trilon B) and surfactant (sulphonol).
EFFECT: improving the characteristics.
3 cl, 1 dwg
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