Key Considerations
Several needs should be taken into consideration when selecting the right product for your BOF steelmaking needs:
- Slag Chemistry
- Phosphorus levels
- Oxidation requirements
Several needs should be taken into consideration when selecting the right product for your EAF steelmaking needs:
- Slag Chemistry
- Nitrogen and hydrogen levels in the foamy slag
- Oxidation requirements
Several needs should be taken into consideration when selecting the right product for your foundry operating with an EAF needs:
- Slag chemistry
- Nitrogen and hydrogen levels in the foamy slag
- Oxidation requirements
Several needs should be taken into consideration when selecting the right product for your stainless steel needs:
- Slag chemistry
- De-oxidation and desulfurization practices in the secondary metallurgy treatments
| Process step |
Critical parameters |
Typical consumption (Kg/ton) |
| BOF Converter |
1. Quality consistency 2. Reactivity 3. Lower fines |
Lime: 40 – 70 Dolime: 0 - 40 |
| Electric Arc Furnace |
1. Quality consistency 2. Lower fines 3. Flowability for injection |
Lime: 0 – 50 Dolime: 0 - 50 |
Your Benefits
Why High Calcium Quicklime from Carmeuse for Your BOF Steelmaking Needs?
- Optimizes chemistry of the slag
- Removes impurities such as sulfur, phosphorus and oxides
- Maintains viscosity of the slag to increase heat yields
Why High Calcium Quicklime from Carmeuse for Your EAF Steelmaking Needs?
- Optimizes chemistry of the slag
- Removes impurities such as sulfur and oxides
- Supports foaminess through-out the heat
- Prevents nitrogen and hydrogen pick-up
- Reduces energy costs by insulating the bath
- Prevents electrodes from damaging the refractory
- Maintains viscosity of the slag to increase heat yields
Why High Calcium Quicklime from Carmeuse for Your Foundry Needs Operating with an EAF?
- Optimizes chemistry of the slag, removing impurities such as sulfur and oxides.
- Supports foaminess through-out the heat
- Prevents nitrogen and hydrogen pick-up
- Reduces energy costs by insulating the bath
- Prevents electrodes from damaging the refractory
Soft burnt reactive lime is critical to dephosphorization
BOF
1. Integrated steel mills are very complex and small changes could make huge impact
2. Soft burnt lime having a large specific surface and good reactivity favors dephosphorization
3. Higher quality lime facilitates lower consumption of lime and improvement in steel melt shop productivity.
EAF
1. Foaming slag is critical to EAF process for productivity, refractories, electrodes.
2. Foaminess also helps in improving chromium recovery, in case of stainless steel melting.
3. CO gas helps to foam and slag composition is critical to maintain foaminess
Image
