Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate
2006-06-13
2010-02-02
Wyszomierski, George (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
C075S531000, C075S560000, C148S625000
Reexamination Certificate
active
07655066
ABSTRACT:
The invention relates to titanium oxide containing slag compositions and associated methods for reducing the nitrogen content of metals. The titanium oxide slag compositions can be used to reduce nitrogen content in various molten metals including steel, nickel, copper, iron, and the like. The nitrogen content of the metals can be reduced by contacting the metal with the titanium oxide containing slag composition. The slag compositions are capable of reducing the nitrogen content of steel to less than 20 ppm without the need for specialized high-quality starting materials or processing equipment.
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Cho Weol D.
Fan Peng
Thorpe North & Western LLP
University of Utah Research Foundation
Velasquez Vanessa
Wyszomierski George
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