Class 75/319 - Containing Iron(Fe) compound

Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Composition containing an Iron compound.
No. of patents: 28
Last issue date: 03/04/2008

Number	Title	Issue Date
7340420	Method and system for providing information on industrial wastes, server and terminal for providing the information, recording medium for recording computer-readable program, and program allowing computer to execute process A system provides assistance in the delivery of industrial wastes from industrial waste-generating sites to one or more industrial waste treatment sites based on exchanged information on industrial wastes containing metal oxide. The system includes a server, termina...	03/04/2008
7175691	Method of producing stainless steel by re-using waste material of stainless steel producing process A method of producing stainless steel includes the steps of melting a raw material in an electric furnace to form molten steel, and then refining the molten steel by a refining furnace to produce stainless steel in a stainless steel producing process. In the method,...	02/13/2007
6918944	Carbon containing nonfired agglomerated ore for blast furnace and production method thereof A nonfired agglomerated ore which is satisfactory in reduction property in the shaft of a blast furnace and excellent in rapid heating bursting property and a production method thereof are provided. A carbon containing nonfired agglomerated ore for blast furnace whi...	07/19/2005
6786949	Method and apparatus for using a pre-jel for producing self-reducing agglomerates Self-reducing agglomerates are provided for use in the production of metal. The agglomerates comprise a mixture of iron oxide containing particles and particles of a reducing agent bonded by use of a pre-gel. The agglomerates are produced by a method and apparatus t...	09/07/2004
6682583	Process for producing sintered ore and the sintered ore Provided is a process for producing sintered ore in which a small amount of a water-soluble compound (a sintering aid) is added to iron ore powder and, thereby, which product shows improved strength and no adverse influence as an ironmaking raw material e...	01/27/2004
6605130	Pellets incorporated with carbonaceous material Pellets incorporated with a carbonaceous material of the present invention contain a carbonaceous material and iron ore mainly composed of iron oxide. The maximum fluidity of the carbonaceous material in softening and melting, and the ratio of iron oxide ...	08/12/2003
6451083	Hardened particle comprising a reaction product of metal baghouse dust Metal baghouse dust can be solidified and thereby used for a variety of different purposes including a binder material by blending the electric arc furnace dust with a reducing agent such as ferrous chloride or ferrous sulphate. This forms a solidified ma...	09/17/2002
6428599	Iron-rich residue recyclable from the hydrometallurgical processing of flue dust Electric arc furnace production of recycled steel is plagued by the formation of an iron-depleted, metal-rich electric arc flue dust (EAFD). In the present invention, we recover at least about 85 wt. % of the base metals in the EAFD (i.e., lead, cadmium, ...	08/06/2002
6391086	Method for the use of electric steel plant slag for self-reducing agglomerates The present invention refers to a method for using electric steel plant slag, ground and/or in particles of less than 6 mm, in self-reducing agglomerates, in the form of pellets or briquettes, as a fluxing material and as a secondary source of iron, in su...	05/21/2002
6342089	Direct reduced iron pellets A method for producing the direct reduced iron pellets. The method includes pelletizing, iron oxide-containing material, internal reductant and binder to form green pellets. The binder includes a non-combustible fibrous material. The method also includes ...	01/29/2002
6334883	Pellets incorporated with carbonaceous material and method of producing reduced iron Pellets incorporated with a carbonaceous material of the present invention contain a carbonaceous material and iron ore mainly composed of iron oxide. The maximum fluidity of the carbonaceous material in softening and melting, and the ratio of iron oxide ...	01/01/2002
6258150	Process for the beneficiation of waste material and the product developed therefrom An iron based product having at least a sufficient total ferrous content by weight to render the product commercially feasible wherein the product is derived by a process comprising the beneficiation of kish slag waste material having a relatively low fer...	07/10/2001
6179895	Basic tundish flux composition for steelmaking processes The tundish flux composition of the invention employs solid recycled ladle metallurgy furnace (LMF) slag as a fluidizing and refining base ingredient in a mixture of raw materials. The preferred recycled LMF slag material comprises about 35% to about 65% ...	01/30/2001
5851262	Method of refining molten metal A molten metal is subjected to a refining under a reduced pressure of vacuum or a low oxygen partial pressure atmosphere, and subsequently heated by means of inert gas plasma to re-refine. The metals to be processed are stainless steels, Ni-base alloys, F...	12/22/1998
5681367	Method of producing hot metal A method for preparing iron bearing green pellets that can be processed in a rotary hearth furnace without degradation and become self-fluxing sponge iron pellets when charged to a submerged arc furnace operating at a lower temperature than the rotary hea...	10/28/1997
5607780	Target for magneto-optical recording medium and process for production thereof Disclosed are a target material for magneto-optical recording medium having a structure formed by sintering of an RE-TM phase (A) having a composition with an RE content higher than that of the composition of an intermetallic compound represented by the c...	03/04/1997
5573576	Method of treating steel mill waste A method of treating steel mill waste containing iron oxides and silica includes reacting the steel mill waste with an alkali aqueous solution in an amount sufficient to raise the pH to at least about 7 to solubilize silica to form soluble silicate compou...	11/12/1996
5439505	Treatment of steel mill waste for recycling Steel mill waste containing iron, iron oxides and polluting compounds are treated with a strong alkali to raise the Ph to 14 to allow more alkali to solubilize silica. The mixture of materials and silica gels is then reacted with alkaline silicic compound...	08/08/1995
5397379	Process and additive for the ladle refining of steel 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 ...	03/14/1995
4963185	Agglomerates containing olivine for use in blast furnace A process for the reduction of iron oxides to produce molten iron in which olivine is introduced into a blast furnace in addition to iron oxide bearing materials and in which there is a high content of alkali metal oxides in the materials charged into the...	10/16/1990
4529446	Formed metal-containing briquettes, process for forming the same and process for utilizing the same in the manufacture of steel Formed metal-containing briquettes of high green strength, high shatter and good compressive strength in the cured state from a composition comprising a metal-containing waste, an aqueous solution comprising ammonium polyphosphate and magnesia. The produc...	07/16/1985
4518428	Agglomerates containing olivine A process for the reduction of iron oxides to produce molten iron in which olivine is introduced into a blast furnace in addition to iron oxide bearing materials and in which there is a high content of alkali metal oxides in the materials charged into the...	05/21/1985
4356027	Iron ore pellets containing magnesium oxide Iron ore pellets having superior reduction and load softening properties in blast furnace operations. The pellets are prepared from a raw material to which is added an amount of magnesia or a MgO feeding source such as that the ratio of MgO to the SiO	10/26/1982
4350523	Porous iron ore pellets Porous iron ore pellets and a process for manufacturing same, the pellets having a pore size distribution consisting of more than 30% of pores having a diameter greater than 10 microns and a balance of pores having a diameter smaller than 10 microns, a to...	09/21/1982
4133678	Ferro-alloy process and product This invention is directed to the making of a ferro-nitrogen addition agent for steel making processes. The ferro-nitrogen agent is derived in my process from waste materials of steel making and processing....	01/09/1979
4113481	Green balls formed by agglomerating wet-collected fume produced in metallurgical furnaces Green balls suitable for charging into a metallurgical furnace characterized by having sufficient strength to resist degradation during transport and charging into said furnace, made by agglomerating iron-bearing fume produced in steelmaking furnaces....	09/12/1978
4023959	Method for recovering vanadium from magnetite and forming a magnetite product low in sodium and silica Magnetite concentrate comprising essentially iron oxide as Fe3 O4, titanium dioxide and lesser amounts of vanadium and silicious materials is screened and treated with relatively small amounts of sodium to recover from 70 to 90% of t...	05/17/1977
3982924	Process for producing carbide addition agents Carbide addition agents comprising (a) from about 20 to about 60 atomic percent of carbon, (b) from about 25 to about 60 atomic percent of at least one metal selected from the group consisting of vanadium and columbium, and (c) from about 10 to about 40 a...	09/28/1976

PatentStorm

Did You Know...

PatentStorm News

Class 75/319 - Containing Iron(Fe) compound