The composition of lead anode mud for the lifting of the Shenang smelter in Japan is (%): Pb 10-15, Bi 17-32, Sb 16-37, As 5-8, Cu 2.5-5, Ag 100-150 g/ton , Au 120 ~ 560 g / ton. The process is similar to that of the Terrell plant, except that the equipment used is different: after the anode mud is washed and dried, it is reduced and smelted in a 300 kVA Girod electric furnace to produce a high-yield product. 4 tons of lead oxide pot removal of arsenic, antimony, and then chlorinated in the pot in addition to chlorine lead alloy, the output of the bismuth oxide in the combustion furnace 4 tons of heavy oil into the slag, the slag in the oxidation furnace 200 kVA Internal reduction smelting, the crude product produced is cast into an anode, and electrolyzed with a silicon fluoric acid electrolyte to produce a high purity 五.
The process flow is shown in Figure 1.
Figure 1 Flow chart of recycling process in Shengang Plant
This process is tedious and complex, and its features are not outstanding. Probably adapted to the special circumstances of the plant.
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