Passivation behavior of high silver containing copper anodes was investigated using slowly cooled Cu- 1%Ag different lead (Pb) concentrations. The addition Pb distributes in the phase and reduces amount that is solidly soluble and, thus, generates a fine powder on anode surface which main contributing factor passivation. Electrorefining experiments were conducted synthetic electrolyte 40 g/L Cu...

Glass-bonded zeolite is being considered as a candidate ceramic waste form for storing radioactive isotopes separated from spent nuclear fuel in the electrorefining process. To determine the stability of glass-bonded zeolite under irradiation, transmission electron microscope samples were irradiated using high energy helium, lead, and krypton. The major crystalline phase of the waste form, whic...

Nickel behavior has a significant role in the electrorefining of copper, and although it been extensively studied from anode electrolyte point view over past decades, studies on nickel contamination at cathode are limited. In current paper, three possible mechanisms—particle entrapment, inclusions co-electrodeposition—were investigated. Copper (Cu-ER) was conducted laboratory scale, cathodes we...

The electrorefining process of the non-commercial Cu anodes was tested on enlarged laboratory equipment over 72 h. with Ni content 5 or 10 wt.% and total Pb, Sn, Sb about 1.5 were used for tests. real waste solution sulfuric acid character a working electrolyte different temperatures (T1 = 63 ± 2 °C T2 73 °C). current density 250 A/m2 same as in commercial process. Tests confirmed that those ca...