
Direct Reduced Iron in iran
Sponge iron is obtained from the direct reduction of iron ore called (direct reduced iron) and the direct reduction operation removes its oxygen without the need to melt iron ore. During the direct regeneration process, due to the release of oxygen gas, the iron ore turns into spherical pieces, which have a small hole on their surface like a sponge. This appearance is the reason for the special name of this product.
The grade of sponge iron is between 84 and 95%, which is a high value. In the direct regeneration method, the regenerating material used can be coal or natural gas, although the use of coal has a longer history.
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Technologies used in the production of sponge iron
Direct Reduced Iron in iran : To produce sponge iron in methods that do not use coal and use natural gas instead, the following technologies are used.
Hydrax
HYL
Purofer
Among these three technologies, hydrex and HYL are more widely used and more efficient than other technologies. In the Midrex method, iron ore with a grade of 67% is regenerated without the need for an intermediary and using fracturing gases. In the HYL method, in addition to using cracked natural gas, steam is also used as a regenerator to increase the amount of hydrogen produced. Therefore, in this method, the amount of hydrogen is much higher than carbon monoxide and plays the role of the main reducing agent.
In the Purofer method, iron ore is first sieved and the remaining materials obtained from the sieve are poured into the furnace or oven, the oven is cone-shaped. The iron ore is falling down and the regenerating gas is moving from the bottom up. It should be noted that the Purofer method is mostly used in Brazil and is not applicable in Iran.
Application of sponge iron
In general, sponge iron is considered a suitable alternative for iron waste, as a result, by using it, a high percentage of raw materials can be prepared to provide the melting needed for steelmaking units instead of using waste. One of the most important applications of this product is to use it in induction furnaces, which can replace 50% of it with scrap.
Among other uses of sponge iron is the use of this product in cast iron and steel making industries. Because of the high purity of the iron it has and also because of the special chemical compounds that sponge iron has, it produces stronger and higher quality steel.
Also, other uses of this product can be mentioned as raw materials in making ingots, steel sections and all electric arc products. which increases the productivity and efficiency of steel ingots to a suitable amount.
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Manufacturers of sponge iron Direct Reduced Iron in iran
Sponge manufacturers in Iran
Gol Gohar Iron and Steel Development Company
Shadgan Steel Industry Company, with a production capacity of 800 thousand tons per year
Ardakan Steel Complex, with a production capacity of 960 thousand tons per year
Kaveh South Kish Company, with a production capacity of 1.8 million tons per year
Ghadir Niriz Steel Company, with a production capacity of 800 thousand tons per year
Sirjan Iranian Steel Company, with a production capacity of 50.2 million tons per year
Middle Azarbaijan Steel Company
Mobarake steel complex of Isfahan
Khuzestan Steel Complex
Arfa Iron and Steel Company, with a production capacity of 800 thousand tons per year
Rashtkhawar steel complex, with a production capacity of 1.2 million tons per year
Jahan Fould Sirjan Complex Company, with a production capacity of 2 million tons per year
Manufacturers of sponge iron in the world
The first five countries producing sponge iron in 2021 were India, Iran, Russia, Saudi Arabia and Mexico respectively. The graph below shows the production of these five countries in 2021.
From 2017 to 2021, the global production of sponge iron has increased by 32 million tons. The reason for this was the increase in the production of sponge iron based on coal in India and the increase in production based on natural gas in the countries of Iran, Algeria, Egypt, America and Russia.
The largest producer of sponge iron in the world
Direct Reduced Iron in iran : Mobarakeh Steel is the largest producer of flat steel sheets in the Middle East and North Africa with a share of 34% of steel production in the country and a share of about 20% in the Mena region, and this company is the largest producer of this with the production of 11.4 million tons of sponge iron. It is the type of iron in the world.
Mohammad Yaser Tayebnia, CEO of Mobarakeh Steel: The current market value of Mobarakeh Steel is more than 510 thousand billion Tomans with a share of 1.5% in the country’s GDP and about 6.5% in the country’s industry sector’s GDP.
He stated: Today, the extensive supply chain of Mobarakeh steel includes more than 2,500 to 3,000 companies, and this industrial complex has a wide network of customers, which comprise more than 1,000 factories and manufacturers, which are the major customers of this complex. .
Pointing out that the goal of Mobarakeh Fould is to be among the top 20 steel companies in the world, he added: Today, Mobarakeh Fouldah is not the only steel producer, but has placed its mission above the production of a product and this mission is to create a better future. It has defined for our country and today it has entered the country’s infrastructural development and the vision and goal of this company is to become a national business and corporate model.