Other

Oglebay Norton Company

William J West

William Weber

Frank L Kemeny

Jeremy A T Jones

Bruce J Barker

A slag composition containing from about 85 to about 99 weight percent of steelmaking slag and from about 1 to about 15 weight percent of a foaming additive. The steelmaking slag is at a temperature of from about 2500 to about 3100 degrees Fahrenheit. The foaming additive contains from about 20 to about 80 weight percent of a source of elemental carbon, from about 5 to about 80 weight percent of calcium carbide, and from about 25 to about 75 weight percent of anoxide compound. The weight ratio of the source of elemental carbon to the calcium carbide is at least 2.

Slag composition

A process of refining steel in a ladle using solid granules or briquettes made from recycled LMF slag and raw materials to make a desulfurizing addition, a slag conditioner or synthetic refining slag is described. The preferred recycled LMF slag material generally comprises of 35% to about 65% CaO; 10% to about 35% Al.sub.2 O.sub.3 ; 1% to about 10% SiO.sub.2 ; 3% to about 15% MgO; 0.3% to about 10% FeO; 0.1% to about 5% MnO; 0% to about 0.5% P.sub.2 O.sub.5 ; and 0.1% to about 0.5% S. The ladle refining additive comprises from about 10% to about 90% of a recycled ladle metallurgy furnace slag and the balance of raw materials selected from the group consisting of: a calcium oxide source; soda ash; fluorspar; borax; calcium carbonate; aluminum source; calcium aluminate; alumina source; metallic calcium, magnesium, sodium and their oxides, fluorides and carbides; and mixtures of all of the foregoing.

Growing community of inventors

Warren, OH, United States of America

William J West