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| Number | Title | Issue Date |
| 6989040 | Reclaimed magnesium desulfurization agent A method and composition for removing sulfur from molten ferrous material, particularly molten iron. The desulfurization agent includes reclaimed magnesium scrap, a gas-producing compound and a calcium compound. ... | 01/24/2006 |
| 6972059 | Exothermic feeder An exothermal feeder mass is described, containing aluminum and magnesium, at least one oxidizing agent, a SiO2-containing filler, and an alkali silicate as the binder; it is characterized in that it contains roughly 2.5 to 20% by weight of a reactive alu... | 12/06/2005 |
| 6866696 | Additive for production of irons and steels A technique for producing iron utilizes agglomerations, such as briquettes or tablets, or powders, that include a sulfur-containing material such as iron sulfide, and and oxygen containing material such as iron oxide. The agglomerations or powders are substantially ... | 03/15/2005 |
| 6733565 | Additive for production of irons and steels A technique for producing compacted graphite iron utilizes agglomerations, such as briquettes or tablets that include a sulfur-containing material such as iron sulfide. The agglomerations are free of chemical binders and utilize iron and aluminum metal powders and p... | 05/11/2004 |
| 6559082 | Insulating refractory material The invention concerns a crack-free insulating refractory material made from a composition comprising 20-80% by weight of a ceramic matrix, 5-40% by weight of insulating microspheres, 0.5-15% by weight of one more binders, 5-20% by weight of a metal or a ... | 05/06/2003 |
| 6383249 | Magnesium desulfurization agent A method and composition for removing sulfur from molten ferrous material, particularly molten pig iron. The desulfurization agent includes a magnesium particle coated with a heat absorbing compound. The heat absorbing compound absorbs heat around the mag... | 05/07/2002 |
| 6372013 | Carrier material and desulfurization agent for desulfurizing iron A particulate carrier material for use with particulate passivated magnesium for injection into molten iron to desulfurize the iron, improve characteristics of the slag and increase iron yield. Material flow of a transport gas and the carrier material is ... | 04/16/2002 |
| 6372014 | Magnesium injection agent for ferrous metal A treatment agent and method to introduce magnesium into ferrous material. The treatment agent includes a mixture of high melting temperature particles and magnesium particles. The content of high melting temperature particles in the particle mixture is p... | 04/16/2002 |
| 6352570 | Magnesium desulfurization agent A method and composition for removing sulfur from molten ferrous material, particularly molten pig iron. The desulfurization agent includes a magnesium particle coated with a heat absorbing compound. The heat absorbing compound absorbs heat around the mag... | 03/05/2002 |
| 6350295 | Method for densifying aluminum and iron briquettes and adding to steel The invention relates to a process to minimize metallic aluminum fines loss to parasitic reactions during their introduction into the tap stream of molten steel from Basic Oxygen Furnaces or Electric Arc Furnaces in the ladle, or at the secondary steelmak... | 02/26/2002 |
| 6316125 | Aluminum welding process and composition for use in same The invention provides a new and improved process and exothermic reaction mixture for producing molten weld metal. The molten weld metal is used in joining one metallic piece with at least one other metallic piece. The process and exothermic reaction mixt... | 11/13/2001 |
| 6264717 | Clean melt nucleated cast article An article that comprises a fine-grain, homogeneous microstructure is essentially oxide- and sulfide-free and segregation defect free. The article is produced by a process that comprises forming a source of clean refined metal that has oxides and sulfides... | 07/24/2001 |
| 6210460 | Strontium-aluminum intermetallic alloy granules Compositions suitable for use as an inoculant for cast iron. The composition includes granules of intermetallic alloys selected from Al4 Sr, Al2 Sr, and AlSr. The composition consists essentially of 40 to 81 percent strontium by weig... | 04/03/2001 |
| 6149710 | Additive for adding one or more metals into aluminium alloys Briquettes or tablets to be added to an aluminium melt, are made up by the combination of an agglutinated powder which include, at least, an aluminium powder, a powder of one or more metals or alloys including those to be added, and a wax-type organic com... | 11/21/2000 |
| 6126713 | Additive for use in producing spheroidal graphite cast iron An additive for use in producing spheroidal graphite cast iron of the present invention contains a fine particle of magnesium oxide having a purity of 90 weight % or more and at least one selected from the group consisting of a graphite-spheroidizing mate... | 10/03/2000 |
| 6077326 | Steel additive for processing molten steel An additive for the deoxidation of molten steel comprised of between 35 and 65 percent by weight aluminum, between 5 and 15 percent by weight silicon, and between 20 and 40 percent by weight manganese.... | 06/20/2000 |
| 5972072 | Desulfurizing mix A desulfurization composition contains from about 3% to about 20% particulate metallic aluminum, about 5% to about 30% particulate alumina, about 0.5% to about 12% particulate hydrocarbon material or other gas generating composition and the balance lime p... | 10/26/1999 |
| 5944914 | Aluminothermic mixture with ferrochromium alloy The invention relates to an aluminothermic mixture consisting of a finely particulate base portion of iron oxides and aluminum as well as metallic additives, wherein a master alloy, namely a ferrochromium alloy consisting of (in % by weight) C: 0.1 to 20 ... | 08/31/1999 |
| 5873924 | Desulfurizing mix and method for desulfurizing molten iron A desulfurization composition contains from about 3% to about 20% particulate metallic aluminum, about 5% to about 30% particulate alumina, about 0.5% to about 12% particulate hydrocarbon material or other gas generating composition and the balance lime p... | 02/23/1999 |
| 5762722 | Covering flux for smelting aluminum and a process for its preparation The present invention relates to a highly efficient aluminum covering flux and a process for its preparation. The said covering flux comprises potassium chloride, sodium chloride, lithium chloride, potassium fluoride and sodium hydrosulfate, wherein the c... | 06/09/1998 |
| 5698009 | Method for agglomerating pre-reduced hot iron ore particles to produce ingot iron A method for agglomerating iron ore particles pre-reduced to produce hot pig iron, wherein hot iron ore particles pre-reduced in the pre-reduction furnace are simply mixed with aluminum powder or aluminum-containing metal powder before being loaded in the... | 12/16/1997 |
| 5370726 | Metallothermal reaction mixture A metallothermal reaction mixture consisting of a metal oxide, a metal that is more electronegative than the metal of the metal oxide and, optionally, further additives, the individual components being present in the form of small particles, is prepared i... | 12/06/1994 |
| 5358550 | Desulfurization agent A method for desulphurizing molten pig-iron involving injecting a gas-evolving desulphurizing agent which includes a calcium compound and a gas-forming material comprising of a liquid gas-producing compound absorbed in a porous slag-forming agent and at l... | 10/25/1994 |
| 5336293 | Desulfurizing agent for pig iron and cast iron, and process for desulfurization The present invention describes an agent for the desulfurization of pig iron or cast iron, based on finely granulated magnesium and at least 3 w. % of an metallurgically silicious mineral with a bond, blend or crystal structure and/or one of the minerals ... | 08/09/1994 |
| 5300136 | Potassium fertilizer from aluminum reclamation by-products Scrap aluminum is reclaimed by a salt flux-based reclamation process using potassium chloride in place of the commonly used sodium chloride. The spent flux which remains after the recovery of the aluminum is useful as a soil fertilizer, with the potassium... | 04/05/1994 |
| 5196048 | Process for preparing a vanadium-nickel-chromium master alloy A hydrogen battery alloy is prepared which is substantially free of inclusions of chromium by preparing a first precursor alloy or master alloy containing vanadium, nickel, and chromium using relatively equal amounts of vanadium and nickel and then adding... | 03/23/1993 |
| 5064463 | Feedstock and process for metal injection molding A feedstock for metal injection molding comprises a reactive metal powder selected from the group consisting of aluminum, magnesium and titanium coated with a less reactive metal selected from the group consisting of cobalt, copper, iron, nickel, tin and ... | 11/12/1991 |
| 5021086 | Iron desulfurization additive and method for introduction into hot metal An additive for use in the desulfurization of molten iron is disclosed. The additive comprises a granular mixture of metallic magnesium, calcium oxide and a small amount of a hydrocarbon-containing material which provides a volatile gas producing componen... | 06/04/1991 |
| 4956009 | Calcium alloy steel additive and method thereof A granular additive alloy designed for addition of calcium to molten steel to obtain maximum calcium effects with minimal additions, especially in steels which cannot tolerate the other elements commonly accompanying calcium additions. An alloy is describ... | 09/11/1990 |
| 4921533 | Ferro-aluminum composite pig An article of manufacture is provided in the form of a composite pig comprising a matrix of a ferro-aluminum alloy containing over about 55% and ranging up to about 75% aluminum and the balance essentially iron, the matrix alloy having distributed thereth... | 05/01/1990 |
| 4849165 | Metal treatment agents Metallurgical treatment agents for molten ferrous metals e.g. iron and steel and suitable for e.g. desulphurizing molten iron and steel comprise particulate magnesium coated with a first coating of a hydrophobic compound and a second coating of a particul... | 07/18/1989 |
| 4801328 | Deoxidizing agent The present invention discloses an agent for the deoxidation of ferrous melts, generally comprising a discrete layer of aluminum surrounding a ferrous core, and a method of deoxidation of ferrous melts utilizing the agent of the invention to provide an im... | 01/31/1989 |
| 4765830 | Injectable reagents for molten metals Injectable reagents useful for innoculating molten process metals, such as molten iron, are prepared by effecting an impregnation of a minor amount of a molten metal reagent, such as Mg or Al or alloys of these, into small particles of a major amount of a... | 08/23/1988 |
| 4729874 | Method of using rapidly dissolving additives for metal melts The present invention provides a rapidly dissolving additive for metal melts, wherein it contains or consists of 2 to 50% by weight of a powdered component A, consisting of magnesium and/or a magnesium-containing alloy, and 50 to 98% by weight of a powder... | 03/08/1988 |
| 4708737 | Injectable reagents for molten metals Injectable reagents useful for innoculating molten process metals, such as molten iron, are prepared by effecting an impregnation of a minor amount of a molten metal reagent, such as Mg or Al or alloys of these, into small particles of a major amount of a... | 11/24/1987 |
| 4708739 | Grain refining metals The invention provides a grain refinement method for copper-based metals, which method can be applied to a range of different types of such metals. In accordance with the method, one arranges that a melt of the metal to be grain refined contains each of t... | 11/24/1987 |
| 4705561 | Magnesium calcium oxide composite A product and method of manufacture are set forth. The product is used in desulfurizing steel. Magnesium is in its molten state, and with vigorous stirring, lime is added. A relatively brittle material is obtained upon cooling which can be ground to a par... | 11/10/1987 |
| 4624707 | Continuous casting slag A synthetic slag composition for the continuous casting of steel. The slag composition is used in the tundish to condition and remove sulfur from the molten steel prior to the steel being introduced into the continuous casting mold.... | 11/25/1986 |
| 4564393 | Introducing one or more metals into a melt comprising aluminum An additive is provided which enables metal additions to be made to aluminum melts with good metal recovery and speed of dissolution. The additive includes a mixture comprising: (a) an aluminum-comprising powder, for example commercially pure aluminum; (b) a p... | 01/14/1986 |
| 4462834 | Ladle covering compound The exposed surface of a molten metal, ferrous or non-ferrous in a ladle is covered by an expanding insulating ladle covering compound that is capable of absorbing and removing non-metallic inclusions in a predictable volume. The compound includes burnt l... | 07/31/1984 |
