CBIC (Cold Briquetted Iron and Carbon)

Arij as the CBIC Supplier

Briquette of Sponge iron fine
In the steel industry, just like any other industry, the optimization of by-products plays a significant role. Typically, indirect reduction units, some sponge iron fine is produced, due to which the smaller dimensions (less than 6 mm), charging them directly to the furnace, will reduce the production efficiency and increase the losses. Thus, briquetting of sponge iron fine and its product called “Cold Briquetted Iron (CBI)“ are used as a conventional solution to optimize the use of direct reduction units’ by-products.

Since the production volume of sponge iron fines is limited in the direct reduction unit (less than 10% of the direct reduction unit production volume), the capacity of the fines briquetting unit is also limited, and this material is usually used in the steelmaking units adjacent to the direct reduction unit. In other words, because of its limited production and less desirable properties than other members of the sponge Iron family, it has never been a commercial product on the world market.

Cold Briquetted of Pellet Sponge Iron
A significant number of direct reduction units in the world are producing cold sponge iron (CDRI). The inherent properties of sponge iron, such as high specific surface area, low resistance to oxidation and abrasion as well as poor mechanical properties, have made the storage and transportation process of this product always subject to risks and challenges so that the International Maritime Organization (IMO) has laid down strict rules for its shipment. For this reason, the storage and transportation of sponge iron is a costly and risky business.

Today, Iran is recognized as one of the largest sponge iron-producing countries in the world. Since almost all active direct reduction units in the country produce cold sponge iron, most of them have had difficulty in storing and transporting their sponge iron.

Thus, recognizing this problem, as well as the imbalance of production capacity of the direct reduction units and active steelmaking plants in the country in different seasons, the country sought to provide a solution to overcome this problem, Invented Cold Briquetted Iron and Carbon (CBIC) as a new product in the sponge iron industry.

CBIC, also known as Cold Briquetted Sponge Iron (CBSI), is a product produced in the briquetting process from cold sponge iron (CDRI) and due to its inherent properties, such as high density and mechanical strength and acceptable chemical stability, is recognized as a storable and transportable commodity in the direct reduction industry.

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