Cylindrical briquettes were produced using a hydraulic piston press (Herzog). A total of 20 g of fines was loaded into the mold (diameter = 20 mm) for each pass, with the binding agents dosed at 1 wt.% of the total weight (20 g).
Briquettes were tested for Splitting Tensile Strength (STS) in accordance with the ISO 4700:2007 standard, using a hydraulic compression testing machine. Strength was measured immediately, and 24 and 96 hours after compaction.
Key takeaways:
- All binders improved briquette strength
- Strength development took time as binders hydrated
- Borregaard's lignosulfonate exhibited the highest STS after 96 hours and demonstrated
the fastest strength development
¹ Manu, K.; Mousa, E.; Ahmed, H.; Elsadek, M.; Yang, W. Maximizing the Recycling of Iron Ore Pellets Fines Using Innovative Organic Binders.
Materials 2023, 16, 3888. https://doi.org/10.3390/ma16103888