Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas.
The rapid expansion of high-power EAFs (Electric Arc Furnace) has increased the interest to use DRI as a great option for the continuous charging of electric furnaces in developed countries.
Sponge iron is a valuable source of iron for the production of high-quality steel. With the Direct Reduction technology that has been developed considerably in recent years, sponge iron melting in electric arc furnaces has more qualitative advantages than scrap metal smelting for steel making. Some of the benefits include:
More specific chemical composition
Low levels of impurities (gangue, sulfur, and phosphate)
The impossibility of using cheap scrap
Easy storage and shipment
Continuous automatic charging
Predictable price structure
Fixed power of input electricity
Relying on the knowledge, valuable experience and history, and empowerment of our team, we, Arij Global Trading Co. are supplying our high-quality gas-based DRI to the far destinations in containerized and bulk shipment.
As a supplier of gas-based Sponge Iron with a great history and experience, we also provide cost-effective solutions for the shipment to our customers in complete accordance with their needs, which ultimately fulfills the goal of providing satisfying service.
FERROUS PRODUCTS OBTAINED BY DIRECT REDUCTION OF IRON ORE
(SPONGE IRON LUMPS)
SPECIFICATION:
FE TOTAL: : 90% Min
FE METAL: : 78% Min
METALLIZATION: : 85% Min
FeO: : 14% Max
SULPHUR: : 0.035% Max
PHOSPOROUS: : 0.05% Max
CARBON: : 0.12% Max
PHYSICAL SIZE: : 3 - 20 mm (100% Lumps).
Mean Particle Size (MPS) : 10-12mm
NON-MAGG: :1% Max
Fines: :1% Max (less than 3mm will be considered as fines)
Because of the bright future of the universal requirement for DRI briquette over the next two decades, a new method was created in 2009 in Iran to produce a cold briquette of CDRI (Patent No. IR60923). Cold-Briquetted Sponge Iron (CBSI) was the name given to the new product. Afterward, following pilot-scale and performing various laboratory studies, Cold-Briquetted Iron and Carbon (CBIC) was invented in Iran as a premium product over CBSI because of the prior�¢??s higher carbon content sand higher efficiency through processes of steelmaking (Patent No. IR84090).
Owing to the fact that the cold-briquetting process of DRI is being done under high pressures, the density and mechanical strength of CBIC should be higher and the surface area and also porosity should be less than DRI�¢??s. thus, the oxidation rate, dust and fine generation rate, and the moisture adsorption capacity of DRI will considerably decrease through the process of cold briquetting. These improvements would have big technical, economic and environmental effects on direct reduction and industries steel manufacturing and will push them heading for more sustainability
