Invention Grant
- Patent Title: Calcium-silicate based slag for treatment of molten silicon
- Patent Title (中): 用于处理熔融硅的硅酸钙基渣
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Application No.: US12041373Application Date: 2008-03-03
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Publication No.: US07879130B2Publication Date: 2011-02-01
- Inventor: Erik Enebakk , Gabriella Maria Tranell , Ragnar Tronstrad
- Applicant: Erik Enebakk , Gabriella Maria Tranell , Ragnar Tronstrad
- Applicant Address: NO Oslo
- Assignee: Elkem ASA
- Current Assignee: Elkem ASA
- Current Assignee Address: NO Oslo
- Priority: NO20022409 20020522
- Main IPC: C22B61/00
- IPC: C22B61/00
Abstract:
The present invention relates to a calcium-silicate based slag having a phosphorous content of less than 3 ppmw. The invention further relates to a method for producing a low phosphorous calcium-silicate based slag, where molten calcium-silicate based slag is treated with a molten ferrosilicon alloy in a vessel, whereby phosphorous in the calcium-silicate based slag is transferred to the ferrosilicon alloy, and a low phosphorous calcium-silicate to based slag is removed from the vessel.
Public/Granted literature
- US20080156145A1 CALCIUM-SILICATE BASED SLAG FOR TREATMENT OF MOLTEN SILICON Public/Granted day:2008-07-03
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