Electrochemical processing of heavy tungsten alloy waste in ammonia-carbonate solutions under AC and DC current

The method of linear voltammetry in the potentiodynamic mode was used to study the anodic behavior of the W, Ni, Fe, Co alloy waste (wt. %: W 90, Ni 7, Fe 2, Co 1) in a 1 M ammonium carbonate solution. The process of the W, Ni, Fe, Co alloy dissolution under the action of direct and sinusoidal alternating current, was also studied. It was found that the use of alternating current makes it possible to achieve the maximum rate of alloy oxidation, the effect of direct current ensures the process proceeds with the maximum current efficiency.