Application of Ammonium Carbonate Solutions in Electrochemical Technology of Heavy Alloy Waste Processing

Abstract

The electrochemical behavior of the VNZhK alloy waste wt W 90 Ni 7 2 Fe 1 8 Co 1 in a solution of NH4 2CO3 1M was investigated by using the methods of cyclic voltammetry in the potentiodynamic mode potentiostatic electrolysis and electrolysis under the action of alternating current industrial frequency 50 Hz It was found that the highest oxidation rate of VNZhK alloy waste 1700 mg cm2 h is achieved by using alternating current and the highest current efficiency about 100 - by using direct current technological scheme was proposed for recovery of tungsten from the heavy tungsten alloy waste in the form of ammonium paratungstate