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Metallurgical slag
   
Document Number
US Patent 7537638
Issued Date
May 26, 2009
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Abstract
A method of making a material for use as a steel-making slag comprises mixing sufficient lime and/or magnesia containing materials with combustion ash until the so-formed composition has a basicity ratio appropriate for use in steel making.
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Number of Claims:
2
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Published
May 26, 2009
Application Number
10/514,456
Filed
May 13, 2003
US Classification
75/560   65/19
Int'l Classification
C21B   3/02   (20060101)   C22B   7/04   (20060101)  
Examiner
Assistant Examiner
Priority Data
May 15, 2002 [GB] 0211154.0
USPTO Field of Search
75/327   75/709   75/329   75/303  
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