The Development of Calcium Ferrite Pellet Used as Dephosphorizing or Slagging Agents for Steelmaking and its Application
- DOI
- 10.2991/iceep-17.2017.68How to use a DOI?
- Keywords
- The calcium ferrite; Dephosphorizing agents; Slagging agents; Hot metal dephosphorization
- Abstract
In order to meet the demands of slag formation without fluorite the calcium ferrite pellet is developed in laboratory. The lime and iron oxides combining in different proportion are used as raw material of the calcium ferrite pellet. The melting properties of the calcium ferrite pellet is determined in resistance furnace as basis for the optimum recipe. The results of test show that recipe c has better melting, which is used as composition of the calcium ferrite pellet and compared with other slag formation material for their melting characteristics. In order to the target of removing the higher phosphorus of hot metal the calcium ferrite pellet is used as dephosphorization and cooling agents to replace the sintered ore in 300t converter. The results show that the consumption of slag formation material is 71kg per ton steel and the dephosphorization rate of hot metal is over 85% by single slag manner to melting the hot metal with 0.105~0.13% phosphorus using the calcium ferrite pellet. The slag basicity is same, T.Fe content is reduced 3% and P2O5 content is increased 0.2% obtained by the calcium ferrite pellet comparing with the sintered ore.
- Copyright
- © 2017, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Wei Wu AU - Yue Liu PY - 2017/06 DA - 2017/06 TI - The Development of Calcium Ferrite Pellet Used as Dephosphorizing or Slagging Agents for Steelmaking and its Application BT - Proceedings of the 2017 6th International Conference on Energy and Environmental Protection (ICEEP 2017) PB - Atlantis Press SP - 385 EP - 389 SN - 2352-5401 UR - https://doi.org/10.2991/iceep-17.2017.68 DO - 10.2991/iceep-17.2017.68 ID - Wu2017/06 ER -