Zinc ingot production process
In general, the production process of Caspian Arvin Spadan zinc ingots includes 4 main stages, which we will discuss briefly :
The produced concentrate (mineral soil containing zinc) is dissolved in the form of zinc sulfate in the dissolution or leaching part, and after neutralization, solid materials and other impurities are precipitated.
After leaching and testing and measuring the amount of iron and zinc in the neutral solution, which is the result of passing through the final stage of neutral leach filtration, the solution enters the purification stage. In the purification stage, the goal is to separate the impurities from the zinc sulfate solution, which is separated from the solution by performing relevant tests and precise measurements and is directed to the electrolysis hall.
Many metals, including zinc metal, can be recovered by cathodic reduction in an electrolysis cell, therefore, in this section, using DC direct current and the appropriate voltage between the plates, zinc metal is absorbed on the cathode, which causes the settling of the main solution Cation that The metal is zinc on the surface of aluminum cathodes.
These cathodes are taken out of the cell every 24 hours and the sheet is removed. At the end, the sheets produced in the casting unit are melted by the casting furnace at a certain temperature and molded using a conveyor belt and converted into 25 kg ingots and packed in 1 ton bundles and sent to the market.
