English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

To achieve reuse of converter slag, the influence of the P 2 O 5  content on the component activity of dephosphorization slag, the basicity of the slag, and the phosphorus content in liquid steel were studied and the influence of temperature on the end phosphorus content in liquid steel was analyzed. The results show that the slag remaining in the last heat still exhibited strong dephosphorization ability. Six heats of industrial basic oxygen furnace trials with a 100t-scale top–bottom combined blown converter were carried out using slag-remaining technology. The phases of dephosphorization slag were analyzed by scanning electron microscopy– energy dispersive X-ray spectroscopy and X-ray diffraction. The decomposition reaction of RO phase (a solid-solution composed of some divalent metal oxides, such as FeO, MgO, MnO, CaO, etc.) was relatively complete in slag with a high CaO/SiO 2  ratio but was not complete in the slag with a low CaO/SiO 2  ratio. Euhedral crystals of 2CaO· SiO 2  with certain amount of 3CaO· P 2 O 5  were formed, resulting in a solid-solution phase of 2CaO· SiO 2 –3CaO· P 2 O 5 . The liquid phase was present in greater amount and was mainly composed of calcium ferrite. The enrichment of SiO 2  and P 2 O 5  was easier with increasing recycling times of the converter slag. To maintain a higher efficiency of dephosphorization, the P 2 O 5  content in the slag should be maintained below 3% and the CaO/SiO 2  ratio of slag should be maintained above 3.

Mineralogical Phase of Slag and Its Effect on Dephosphorization during Converter Steelmaking Using Slag-Remaining Technology