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Class Information
Number: 75/547
Name: Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures > Processes > Producing or treating free metal > At 300 degrees c or greater (e.g., pyrometallurgy, etc.) > Iron(fe) > Melting iron(fe) or treating molten iron > Injecting gas or nonmetalliferous liquid which gasifies into, onto, or through premelted iron(fe) or slag layer thereon > And adding solid agent, slag, or flux to premelted iron(fe) or slag layer thereon > Gas compound containing oxygen (e.g., carbon monoxide, carbon dioxide, water, etc.)
Description: Process wherein the injected gas is a compound containing Oxygen (e.g., Carbon monoxide, Carbon dioxide, Water, etc.).

Patents under this class:

Patent Number Title Of Patent Date Issued
5749939 Melting of NI laterite in making NI alloyed iron or steel May. 12, 1998
5139569 Process for the production of alloy steel grades using treatment gas consisting of CO.sub.2 Aug. 18, 1992
4891063 Process for stirring steel in a ladle with the aid of carbon dioxide Jan. 2, 1990
4762555 Process for the production of nodular cast iron Aug. 9, 1988
4561637 Process and apparatus for heating a steel bath charged with scrap Dec. 31, 1985
4490172 Method of melting and refining steel and other ferrous alloys Dec. 25, 1984
4469511 Removing phosphorus from iron Sep. 4, 1984
4214899 Method for the addition of a reactive metal to a molten metal bath Jul. 29, 1980

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