Process For Refining Steel And Dephosphorization Agent Used In Said Process
Patent No. EP3921447 (titled "Process For Refining Steel And Dephosphorization Agent Used In Said Process") was filed by Lhoist Recherche ET Developpement on Feb 4, 2020. The application was issued on Jun 7, 2023.
Patent Summary
A process for refining and dephosphorizing steel using a slag conditioner comprising a briquette made from a powdery mixture of calcium oxide, magnesium oxide, and iron oxide, wherein the briquette contains at least 30wt% calcium ferrites and a mass ratio of mono-calcium ferrite to di-calcium ferrite of at least 0.5. The process involves charging the steel with the briquette, blowing oxygen, and forming slag, resulting in improved dephosphorization and increased steel yield.
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Date
Description
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EP3921447
- Application Number
- EP20702162A
- Filing Date
- Feb 4, 2020
- Status
- Granted And Under Opposition
- May 5, 2023
- Publication Date
- Jun 7, 2023
- External Links
- Slate, Register , Google Patents