Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ragnar Tronstrad0
Erik Enebakk0
Gabriella Maria Tranell0
Date of Patent
February 1, 2011
0Patent Application Number
120413730
Date Filed
March 3, 2008
0Patent Primary Examiner
Patent 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.
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