Abstract: The present invention is directed to an alloy composition and the method of treating molten cast iron with such alloy to produce ductile and compacted graphite cast irons. The alloy may contain about 0.1% to about 10% silicon, about 0.05 to about 2.0% cerium and/or other rare earth elements, about 0.5 to about 4% magnesium, about 0.5 to about 6.5% carbon (percent by weight) the balance being iron.

Abstract: This invention relates to a new and unique alloy composition and to the method of treating molten cast iron with such alloy to produce ductile and compacted graphite cast irons. The alloy is a predominately iron alloy having the essential elements by weight of from about 0.1 to about 10% silicon, from about 0.5 to about 4.0% magnesium, from about 0.1 to about 10.0% nickel and optionally from about 0.1 to about 2.0% cerium, and/or other rare earth elements. The alloy may comprise from about 0.1 to about 10.0% silicon, from about 0.5 to about 4.0% magnesium, from about 0.1 to about 10.0% nickel, optionally from about 0.1 to about 2.0% cerium and/or other rare earth elements, from about 0.5 to about 6.5% carbon and the balance iron. Small amounts of calcium, barium or stronium and trace elements customarily found in conventional raw materials used in producing the alloy may also be present.

Abstract: Manganomanganic oxide or a material containing manganomanganic oxide as its principle ingredient is used as a colorant with good staining and retention properties in compositions of water emulsion based coatings.

Abstract: Paint formulations employing zinc and manganomanganic oxide fume or a material containing predominantly manganomanganic oxide fume as a corrosion inhibitive system.

Abstract: Manganomanganic oxide fume or a material containing manganomanganic oxide fume as its principle ingredient is used as a color pigment in the formulation of solvent-base paints.

Abstract: The present invention is directed to processes and apparatus for carrying out said processes wherein molten cast iron is treated with a predominantly iron alloy having the essential elements by weight of from about 0.1 to about 10.0% silicon and about 0.5 to about 4.0% magnesium. The alloy may comprise from about 0.1 to about 10.0% silicon, about 0.5 to about 4.0% magnesium, up to about 2.0% of one or more rare earth elements such as cerium about 0.5 to about 6.5% carbon, the balance being iron. Small amounts of calcium, barium or strontium and trace elements customarily found in conventional raw material may be present in the alloy. The characteristics of the alloy make it possible to establish a ready supply of treated molten iron in the foundry in holding vessels with a selected chemical composition at a given temperature. It also makes possible semi-continuous and continuous casting of ductile and compacted graphite cast irons.

Abstract: A low density, porous compact of prepared mix containing silica fume, finely-divided carbonaceous reducing agent such as petroleum coke or coal, optionally iron and a binder.