Abstract
Nickel and ferronickel are some of the major components in the production of special alloys; however, the energy consumption for their production greatly increases their price. A cheaper option could be to use NiO and a reducing agent. This work presents experimental and theoretical analysis to estimate the effect of slag basicity and amount of reducing agents on the NiO reduction from the slag which interacted with molten steel at 1600°C in an EAF. The slag system contained CaO, SiO 2, CaF 2 and NiO together with a reducing agent, ferrosilicon or carbon. The NiO content in the slag was 25 mass%. The amounts of the reducing agents (Si and C) were 1 to 4 times the stoichiometric mass to reduce NiO. The CaO/SiO 2 ratio was 1.5 and 2.5. The kinetics of the process was very fast since after few minutes the maximum nickel yield was obtained. The slag basicity had a negligible effect on the reduction of NiO.
Original language | English |
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Pages | 475-485 |
Number of pages | 11 |
State | Published - 2006 |
Externally published | Yes |
Event | 2006 TMS Annual Meeting - San Antonio, TX, United States Duration: 12 Mar 2006 → 16 Mar 2006 |
Conference
Conference | 2006 TMS Annual Meeting |
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Country/Territory | United States |
City | San Antonio, TX |
Period | 12/03/06 → 16/03/06 |
Keywords
- Ferronickel
- Nickel oxide
- Reduction