The methods of producing copper from ore include two main methods: pyrometallurgy and hydrometallurgy.
The methods of producing copper from ore include two main methods: pyrometallurgy and hydrometallurgy. In the hydrometallurgical method, mineral ores are subjected to crushing and agglomeration operations after being extracted from the mine, and by performing dissolution (leaching) operations on it, a solution containing mineral elements is obtained. In the continuation, copper metal is extracted from the solution of toir blocks with the help of refining processes (separation with solvent or ion exchange and electrowinning).
The method of pyrometallurgy includes ore extraction, anode melting and casting, and finally, electrolytic refining and obtaining pure copper.
In this method, after full grading, the concentrate is melted in the flash furnace and turns into matte copper containing 45% copper. The matte copper is poured into converter furnaces, with the passage of air, impurities (especially iron and sulfur) are oxidized and transferred to slag. This copper, which contains more than 3.99% copper, is called raw copper or blister copper. Blister copper enters the anode furnace using bottles.
In these furnaces, with the injection of propane gas, other impurities are burned together with copper and removed until the purity of copper reaches 7.99%. The output of the anode furnace enters the casting cycle and the anode plates are produced. In the next step, it is converted to 99.9% copper in electrolysis.
In the melting stages, erosion caused by melt turbulence and severe chemical corrosion in the part of the air outlet toir blocks has caused the production of consumable parts in the toir block manufacturing sector to have high technical knowledge.These toir blocks, which are installed in the converter and the anode furnace, have high sensitivity, and their performance and lifespan are considered the main factors of stopping the converter or the anode furnace. These parts were produced for the first time by Atlasseram Kavir company using nano technology and ultra-cooling method and were used in Sarchashme copper complex and Khatunabad copper complex.
Chromite sands are disposable materials, so that after the internal and external nozzles are installed under the bottom of the pot, every time the melt is discharged from the pot, the sliding valve is closed and chromite sand is poured into the hole of the inner nozzle.
In EBT electric arc furnaces for steel production, the taphole discharge chamber is placed vertically on the furnace floor. When the discharge valve is closed, this chamber is filled with special refractory sand, which prevents the penetration of melt into the chamber. After finishing loading the furnace, an electric arc is created and the melting process begins.
Atlas Ceram Company has been able to produce tap hole blocks for electric arc furnaces by using world-class technology and after obtaining approval from several steel companies, it can produce and supply these products, which include endbrick, surand block and tube block.
Electric arc furnace or EAF furnace is included in the group of electric furnaces. Today,
According to May Metals, today these materials are widely used as a protective coating for
Mohammad Hosseinzadeh Yazdi, CEO of Atlas Ceram Kavir Company, says: “This product is designed and
