Investigations into Recycling Zinc from Used Metal Oxide Varistors via pH Selective Leaching: Characterization, Leaching, and Residue Analysis

Table 1

Chemical composition of MOV.

Metal oxide	mol %	wt %
Bi2O3	2.34 ± 0.06	5.1 ± 0.1
Co2O3	1.16 ± 0.03	0.94 ± 0.02
MnO2	0.76 ± 0.02	0.52 ± 0.01
NiO	0.89 ± 0.02	0.79 ± 0.02
Sb2O3	3.21 ± 0.08	4.4 ± 0.1
ZnO	91.6 ± 3.3	88.2 ± 3.1