Process introduction:

The low-temperature molten salt reduction smelting technology are applied for the cadmium powder (cadmium oxide powder) produced in the zinc production process of the electrolytic process to produce 98% of cadmium ingots.

Since cadmium is easily oxidized in the air, there is an oxidation problem after storage and pulverization of the sponge cadmium, and it is necessary to reduce cadmium oxide to metal cadmium when producing the crude cadmium ingot.

Process flow：

Sponge Cd High purity Cd production process flow

Sponge cadmium reduction furnace introduction:

1. Adopt belt feeding; use silicon carbon rod as electric heating element for easy replacement.

2. The frequency double-layer agitator can be used to adjust the stirring speed in real time.

2, the furnace material is made of high heat-resisting material 2520 stainless steel, its design life is 24 months, and the design life of other components is 10 years.

3. The anti-groove device is designed to avoid the large amount of carbon dioxide and water vapor generated by the cadmium oxide during the reduction process, causing the alkali liquid to sag.

Reduction furnace technical parameters: