Class 75/769 - Sintering

Subclass of Class 75 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
Definition: Process wherein the metalliferous material is sintered.
No. of patents: 22
Last issue date: 07/17/2007

Number	Title	Issue Date
7244287	Magnetic particle, its production method, magnetic recording medium and its production method The present invention relates to a method of producing a magnetic particle including forming a layer containing an alloy particle that can form a CuAu-type or Cu3Au-type hard magnetic ordered alloy phase on a support, oxidizing the layer, and annealing th...	07/17/2007
6863710	Sinter mix enhancer A method of improving the sintering of mineral bearing ore which comprises the addition of an aqueous solution of a transition metal sulfate, preferable copper sulfate, to the sinter base mix or to the sinter trim feed is disclosed. ...	03/08/2005
6780222	Method of sintering and sinter bed composition A method for agglomerating and sintering iron and zinc ore and ore concentrates, steel mill ferrous waste and zinc mill waste. The method has the steps: a) mixing the wastes or ore with a combustion fuel source, and a sinter agglomeration agent selected from the gro...	08/24/2004
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
6447852	Method of manufacturing a diamond composite and a composite produced by same The present invention relates to a method for manufacturing a diamond composite from diamond particles, comprising the steps of forming a work piece, heating the work piece and controlling the heating temperature and heating time so that a certain desired...	09/10/2002
6379421	Method and apparatus removing undesirable metals from iron-containing materials The present invention relates to a method and apparatus for separating undesired toxic metals, such as Zn, Pb and Cd, from iron-containing materials by: sintering a mixture of such materials (typically including EAF dust and mill scale) with carbonaceous ...	04/30/2002
6162280	Process for heat treatment of organically contaminated material The technical problem of the invention is to create a process where the second layer is of higher sintering quality and improved waste gas values are achieved. The process according to the invention for the thermal transformation of materials containing o...	12/19/2000
6149712	Sintered high titanium agglomerates A process for increasing the particles size of fines of a titaniferous mineral containing more that 45% by weight of titanium. The process comprises mixing the fines with a binding agent and water to produce an agglomerate. The agglomerate is then dried a...	11/21/2000
5520719	Process for producing sintered iron ore product The present invention relates to a method for sintering an iron scrap in a process for producing a sintered ore which is used as a raw material in ironmaking in a blast furnace. Zn contained in the iron scrap is removed in the step of sintering to enable ...	05/28/1996
5456740	High-efficiency metal membrane getter element and process for making A getter-filter composite membrane element, comprising a sinterable getter material and a sinterable metal filter material, the composite element defining a matrix of substantially interconnected pores. Membrane elements may be comprised of at least three...	10/10/1995
5435835	Method and system for removing and/or causing recycling of materials A system and process for treating dust and sludge from iron and steel making operations and includes separating iron and carbon from zinc and lead. Separation is performed in a series of hydrocyclones associated in a series-parallel fashion, The iron and ...	07/25/1995
5382279	Method and apparatus for combustion of steel plant wastes A process for consuming oily sludge waste product in steel making operations includes spraying a waste slurry onto the moving porous bed of a sinter strand. A burner hood is spaced above a portion of the moving bed. The bed carries a sinter mix which is i...	01/17/1995
4723995	Method for continuously manufacturing fired pellets A method for continuously manufacturing fired pellets, comprising the steps of: using raw materials comprising a first iron ore fine of from 30 to 70 wt. % and a second iron ore fine of from 70 to 30 wt. %, the first iron ore fine comprising an iron ore f...	02/09/1988
4722750	Agglomerated ores and a producing method therefor Mini-pellets made of raw materials of fine powder iron ores are indurated, and effected with diffusion bond. A plurality of said treated mini-pellets are combined with calcium ferrites at the surface layers thereof. Thus, agglomerated ores are produced, w...	02/02/1988
4657584	Effect of MgO source on sinter properties A process is provided for sintering iron-bearing particulate materials in which the final sinter contains 3/5.5% MgO, yet has substantially the same strength as a low MgO limestone sinter. At least 20% of the MgO in the final sinter product must come from...	04/14/1987
4648900	Suction sintering method and apparatus therefor A suction-sintering charge of high permeability and stable structure is produced on a mobile suction-sintering grate or in a stationary or mobile suction-sintering pan by form compacting a moist material mixture (18) to be sintered to form a coherent cake...	03/10/1987
4623402	Metal composition and process for producing same The metal composition and the process for producing same relate to the art of alloy metallurgy. The metal composition based on metals of VIII Group and nitrides of metals of III-VII Groups is characterized in that at least one alloy containing at least on...	11/18/1986
4501609	Method and apparatus for the sintering of a mineral using gaseous fuel A method and apparatus are disclosed for the sintering of an ore using gaseous fuel. A layer of noncombustible particulate mineral material is arranged on a supporting grate, and hot fumes derived from gaseous fuel are passed downwardly through the layer ...	02/26/1985
4213779	Treatment of steel mill waste materials Steel mill wastes are treated to recover the iron values thereof by a two stage agglomeration process wherein relatively small size first agglomerates are formed by agglomeration of steel mill wastes from an aqueous suspension thereof and then relatively ...	07/22/1980
4134755	Method for removing zinc type metals and compounds in dust recovery process in iron manufacture A process and apparatus for recycling iron material components of dusts discharged from iron manufacturing furnaces such as blast furnaces and converters and removing zinc type metals and compounds from such dusts to avoid their deposition and accumulatio...	01/16/1979
4054640	Method of removing nitrogen oxides from an exhaust A method of removing nitrogen oxides from an exhaust which comprises the steps of contacting an exhaust containing nitrogen oxides and ammonia with a reducing catalyst received in a reactor to reduce the nitrogen oxides to nitrogen gas, wherein iron ore c...	10/18/1977
4029495	Process for recovering a heavy metal catalyst component from a spent catalyst A supported catalyst contaminated with organic impurities or a mixture of such a catalyst and a flux is introduced into a rotary furnace, rocking furnace or gradient furnace and agitated and heated therein until sintered or transformed into a semi-melted ...	06/14/1977

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Class 75/769 - Sintering