Abstract
Anodic dissolution of WC-Ni pseudo alloy in (0.5–5) M H2SO4 + (0–1.5) M NiSO4 solutions with anode potentials of 1.2–2.5 V and at temperatures of 293–353 K was studied. The effect of electrolyte component concentration and the indicated parameters of electrolysis on the rate of WC anodic conversion into WO3 as well as on the current efficiency is discussed. The optimum range of electrolysis parameters at which high current density and current efficiency are ensured was selected. The mathematical models of four factors’ (sulfuric acid and nickel sulfate concentrations, anode potential, and temperature) effect on electrochemical conversion were elaborated using the Brandon algorithm (BA), the group method of data handling (GMDH), and the least-squares method (LSM). It was shown that the multiplicative model developed by the Brandon algorithm represents the electrochemical conversion most adequately.
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