222
T. Yamaguchi
Fig. 1 Flowchart of the process of Annaka refinery
Table 1 Annual production
of Annaka refinery
Electrolytic zinc (t/y)
Sulfuric acid (t/y)
Cadmium (t/y)
100,000
60,000
600
As of 2019, we have two electrowinning plants. One is the new No. 3 electrowinning plant (to be described later on this report), and the other is No. 2 electrowinning
plant. Each production capacity is 66,000 t/y for the new No. 3 electrowinning plant
and 34,000 t/y for the No. 2 electrowinning plant.
The flow of the electrolytic process is shown in Fig. 2, and the overview of the
electrolytic operation is shown in Table 2.
T. Yamaguchi
Fig. 1 Flowchart of the process of Annaka refinery
Table 1 Annual production
of Annaka refinery
Electrolytic zinc (t/y)
Sulfuric acid (t/y)
Cadmium (t/y)
100,000
60,000
600
As of 2019, we have two electrowinning plants. One is the new No. 3 electrowinning plant (to be described later on this report), and the other is No. 2 electrowinning
plant. Each production capacity is 66,000 t/y for the new No. 3 electrowinning plant
and 34,000 t/y for the No. 2 electrowinning plant.
The flow of the electrolytic process is shown in Fig. 2, and the overview of the
electrolytic operation is shown in Table 2.