FIELD: chemistry.
SUBSTANCE: invention relates to recycling active material of a nickel oxide electrode of a nickel-cadmium accumulator. The method includes dissolving the active mass in 1M ammonium chloride solution. The solution then undergoes electrolysis with a titanium vibration cathode and a graphite anode in rectangular pulsed current mode with amplitude of 0.3-0.5 A/cm2, pulse duration of 0.05-0.15 s and pause duration of 0.05-0.1 s. Before electrolysis, the solution is held in a flow mixer for 10-12 hours. The method enables to obtain nickel powder with particle size in the range of 4-6 mcm.
EFFECT: high output of the product and efficiency of the process, obtaining ultrafine electrolytic nickel powder, high cost-effectiveness and environmental safety of the process.
2 dwg, 1 ex
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