Direct Reduction (DRI)
Chemical Composition
Direct Reduction (DRI) is a process used to produce iron from iron ore. It involves a chemical reaction between the ore and a reducing agent, typically natural gas, to produce a reduced form of iron. The process produces a material known as direct reduced iron (DRI), which is then used in steelmaking.
| Elements | Unit | Qty |
|---|---|---|
| Fe (Total) | % | 87 min |
| Fe (Metal) | % | 80 min |
| MD | % | 92 min |
| C | % | 2±0.3 |
| S | % | max 0.008 |
| P | % | max 0.06 |
| CaO | % | max 1.1 |
| MgO | % | max 2.5 |
| SiO2 | % | 4±0.5 |
| Al2O3 | % | 0.8±0.2 |
| Tio2 | % | max0.08 |
| Size Distribution | ||
| +16mm | % | 1+1 |
| 9-16mm | % | 62±2 |
| 5-9mm | % | 32±2 |
| -5mm | % | 5±2 |
Hot Broquette Iron (HBI)
This process is becoming an increasingly important part of the steelmaking process due to the decrease in availability of high-grade iron ore and the need to reduce emissions. It also has an advantage over traditional steelmaking processes, such as blast furnace, in that it requires less energy and produces fewer emissions.
| Total Fe | 86% (+/-1%) |
|---|---|
| Metallic Fe | 79% (+/-1%) |
| Metallization | 91% (+/-1%) |
| Carbon | 0.8% min |
| Sulphur | 0.01% max |
| Size | perecentage |
| -6.35 mm | 5 |
| +6.35 mm | 95 |
| Total | 100 |
| Standard Size | 144*54*35* mm |