“About 1,000 tons of slag steel is daily produced at the company, comprising 12% to 15% of total production volume,” Krusnejad said. The slag is made of silica, iron and calcium, a compound which is similar to cement. However, the existing iron (6% to 7% of volume) prevents it from being used in cement industry and road construction sector. The SSP allows separating iron by grinding (milling) and introducing it again in production time.
Another important end result of this process is using residue as construction material, thus avoiding dumping any waste into environment. Several companies in various sectors have made some proposals with respect to use of iron-free slag, the director maintained.
ML/MA
END
MNA