Invention Grant
- Patent Title: Calcium-silicate based slag for treatment of molten steel
- Patent Title (中): 用于处理钢水的硅酸钙基炉渣
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Application No.: US10515583Application Date: 2003-03-17
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Publication No.: US07918916B2Publication Date: 2011-04-05
- Inventor: Erik Enebakk , Gabriella Maria Tranell , Ragnar Tronstad
- Applicant: Erik Enebakk , Gabriella Maria Tranell , Ragnar Tronstad
- Applicant Address: NO Oslo
- Assignee: Elkem ASA
- Current Assignee: Elkem ASA
- Current Assignee Address: NO Oslo
- Agency: Lucas & Mercanti, LLP
- Priority: NO20022409 20020522
- International Application: PCT/NO03/00091 WO 20030317
- International Announcement: WO03/097528 WO 20031127
- Main IPC: C22B7/04
- IPC: C22B7/04 ; C22B61/00
Abstract:
The present invention relates to a calcium-silicate based slag having a phosphorus content of less than 3 ppmw. The invention further relates to a method for producing low phosphorus calcium-silicate based slag, where molten calcium-silicate based slag is treated with a molten ferrosilicon alloy in a vessel, whereby phosphorus in the calcium-silicate based slag is transferred to the ferrosilicon alloy, and a low phosphorus calcium-silicate based slag is removed from the vessel.
Public/Granted literature
- US20050172757A1 Calcium-silicate based slag for treatment of molten steel Public/Granted day:2005-08-11
Information query
