FIELD: chemistry.
SUBSTANCE: invention relates to electrocoagulation regeneration of electrolytes based on aqueous solutions of sodium nitrate and chloride containing hexavalent chromium ions, and can be used in the process of gas turbine engine blades electrochemical treatment. The method for regeneration of the electrolyte based on an aqueous solution of sodium chloride and nitrate, applied for electrochemical treatment of gas turbine engine blades made of high-alloy steels, includes electrolyte electrocoagulation, when the electrolyte is first treated by straight polarity DC current at a current density of 0.4-0.5 A/dm2 for 5-10 minutes, and thenby opposite polarity DC current at the same current density and exposure duration, during treatment, the resulting slurry is removed from the electrolyte.
EFFECT: highly significant reduction in hexavalent chromium ions concentration in the electrolyte.
1 dwg, 1 tbl
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