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公开(公告)号：US20240229189A9
公开(公告)日：2024-07-11
申请号：US18400413
申请日：2023-12-29
发明人： Daniel Jewell , Peter Duxson
CPC分类号： C22B5/04 , B22F1/05 , C22B9/02 , C22B9/04 , C22B21/00 , C22B21/02 , C22B34/12 , C22B34/1268 , C22B34/22 , B22F2301/205 , B22F2304/10 , Y02P10/20
摘要： The invention provides a method for the recovery of a metal-containing product (MProd) comprising: providing a composite material comprising a matrix of oxidised reductant (Ro), a product metal (MP) dispersed in the matrix of oxidised reductant (Ro), and one or more metal compounds (MPCR) of the product metal (MP) in one or more oxidation states dispersed in the matrix of oxidised reductant (Ro); and treating the composite material to at least partially remove the one or more metal compounds (MPCR) from the matrix of oxidised reductant (Ro) to form the metal-containing product (MProd).
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2.发明公开公开(公告)号：US20240052456A1
公开(公告)日：2024-02-15
申请号：US18384722
申请日：2023-10-27
发明人： Antoine Allanore , Caspar R. Stinn
IPC分类号： C22B5/04
CPC分类号： C22B5/04
摘要： In accordance with one embodiment, a method comprises dissolving a sulfide of a first metal in a solvent comprising molten aluminum; aluminothermically reduce at least a portion of the sulfide through reactive vacuum distillation to form gaseous aluminum sulfide distillate and elemental first metal that remains in the molten aluminum; and at least one of (e.g., one, two, or all three of) (a) reacting the aluminum sulfide distillate with at least one material in the molten aluminum; (b) reacting the aluminum sulfide distillate with at least one material outside of the molten aluminum; or (c) condensing the gaseous aluminum sulfide distillate.
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公开(公告)号：US11858046B2
公开(公告)日：2024-01-02
申请号：US17485596
申请日：2021-09-27
CPC分类号： B22F9/24 , B22F9/20 , C22B5/04 , B22F1/054 , B22F1/056 , B22F2201/10 , B22F2202/17 , B22F2301/052 , B22F2301/054 , B22F2301/056 , B22F2302/45
摘要： A method for producing a metal powder includes maintaining molten reducing metal in a sealed reaction vessel that is free of added oxygen and water, establishing a vortex in the molten reducing metal, introducing a metal halide into the vortex so that the molten reducing metal is in a stoichiometric excess to the metal halide, thereby producing metal particles and salt, removing unreacted reducing metal, removing the salt, and recovering the metal powder. The molten reducing metal can be a Group I metal, a Group II metal, or aluminum.
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公开(公告)号：US20230295767A1
公开(公告)日：2023-09-21
申请号：US17922132
申请日：2021-04-30
申请人： KINALTEK PTY. LTD.
发明人： Jawad Haidar , Bilal Khan , Rajan Gnanarajan
IPC分类号： C22B5/04 , C01F7/302 , C01F7/42 , C01F7/786 , B22F9/20 , B22F1/18 , C22B15/00 , C22B19/20 , C22B23/02 , C22B25/02 , C22B30/02 , C22B34/34 , C22B34/36
CPC分类号： C22B5/04 , B22F1/18 , B22F9/20 , C01F7/42 , C01F7/302 , C01F7/786 , C22B15/00 , C22B19/20 , C22B23/021 , C22B25/02 , C22B30/02 , C22B34/34 , C22B34/36 , B22F2201/11 , B22F2301/10 , B22F2301/15 , B22F2301/20 , B22F2301/30 , B22F2301/35 , B22F2301/205 , B22F2301/255 , B22F2302/256 , B22F2998/10
摘要： Disclosed herein is a method for reducing a metal oxide in a metal containing precursor. The method comprises providing a reaction mixture comprising the metal oxide containing precursorand an aluminium reductant; heating the reaction mixture in the presence of solid or gaseous aluminium chloride to temperature at which reactionsthatresultin the metal oxide being reduced are initiated; controlling reaction conditions whereby the reaction mixture is prevented from reaching a temperature at which thermal runaway can occur; and isolating reaction products that include reduced metal oxide.
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公开(公告)号：US20220064756A1
公开(公告)日：2022-03-03
申请号：US17523087
申请日：2021-11-10
申请人： MM Metals USA, LLC
发明人： Daniel SHAW , James SAVILLE , John WILLIAMS , Trevor N. MUSTOE
摘要： A method and system for recovering a high yield of low carbon ferroalloy, e.g., low carbon ferrochrome, from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.
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公开(公告)号：US10648057B1
公开(公告)日：2020-05-12
申请号：US16596017
申请日：2019-10-08
申请人： MM Metals USA, LLC
发明人： Daniel Shaw , James Saville , John Williams , Trevor N. Mustoe
摘要： A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.
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公开(公告)号：US10563289B2
公开(公告)日：2020-02-18
申请号：US15695551
申请日：2017-09-05
IPC分类号： C22B34/24 , C22B5/04 , C22C33/00 , C22C35/00 , C22B1/24 , C22B4/06 , C22B5/16 , C22B9/04 , C22C27/02
摘要： Refined niobium-based ferroalloys are provided by removing lead and other impurities therefrom by a process comprising charging niobium ore concentrate and/or niobium oxide or a mixture of niobium oxides to a metallothermic reaction chamber, admixing the ore concentrate and/or niobium oxide with a reducing agent, initiating a metallothermic reaction, under reduced pressure; and allowing the reaction product to solidify and cool; crushing the reaction product or crushing the niobium-based ferroalloy previously reduced in open air, and charging the crushed product to a melting crucible within a vacuum induction melting furnace, lowering the pressure within the furnace to below 1 mbar, and melting the crushed product while vaporizing the impurities contained therein.
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公开(公告)号：US20200023440A1
公开(公告)日：2020-01-23
申请号：US16282385
申请日：2019-02-22
摘要： A method for producing a metal powder includes maintaining molten reducing metal in a sealed reaction vessel that is free of added oxygen and water, establishing a vortex in the molten reducing metal, introducing a metal halide into the vortex so that the molten reducing metal is in a stoichiometric excess to the metal halide, thereby producing metal particles and salt, removing unreacted reducing metal, removing the salt, and recovering the metal powder. The molten reducing metal can be a Group I metal, a Group II metal, or aluminum.
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公开(公告)号：US10508319B1
公开(公告)日：2019-12-17
申请号：US16454283
申请日：2019-06-27
申请人： MM Metals USA, LLC
发明人： Daniel Shaw , James Saville , John Williams , Trevor N. Mustoe
摘要： A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.
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公开(公告)号：US10400305B2
公开(公告)日：2019-09-03
申请号：US15703765
申请日：2017-09-13
摘要： A method is provided for the production of titanium-aluminum-vanadium alloy products directly from a variety of titanium and vanadium bearing ores that reduces the processing steps significantly as compared to current Ti—Al—V alloy production methods.
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