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公开(公告)号：US20240309490A1
公开(公告)日：2024-09-19
申请号：US18665077
申请日：2024-05-15
申请人： RADTRAN LLC
发明人： Saleem S. DRERA , Andrew EDWARDS
摘要： Methods for the recovery of metal ions from an aqueous metal-chelator solution are disclosed. In some embodiments, a method includes dissociating a metal ion from a chelating agent to form a free chelating agent and then precipitating or removing the free chelating agent, wherein at least some of the metal ions remain in an acid solution for further processing. For example, the metal ions can be used in other applications, such as in medical applications and industrial applications.
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公开(公告)号：US20240263274A1
公开(公告)日：2024-08-08
申请号：US18559931
申请日：2021-05-11
申请人： UNIQUEST PTY LIMITED
发明人： James VAUGHAN , Weng FU
摘要： A method for separating radionuclides from ores, ore concentrates, and tailings or mixtures of two or more thereof comprising the steps of (a) providing an ore, ore concentrate, or tailings, or a mixture of two or more thereof in which radionuclides have been liberated onto surfaces of particles of the ore, ore concentrate or tailings or mixtures of two or more thereof, (b) forming a pulp or slurry comprising the ore, ore concentrate or tailings or a mixture or two or more thereof from step (a), water or an aqueous solution, and an ion exchange resin to cause the radionuclides to load onto the resin, and (c) separating the resin from other solids present in the pulp or slurry.
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3.发明公开公开(公告)号：US20240242135A1
公开(公告)日：2024-07-18
申请号：US18433776
申请日：2024-02-06
发明人： Dana Geislinger , Travis Gaddie , Margaret Alden Tinsley , Muneeb Alam , Steven Chad Richardson , Akaash Sanyal , Raquel Crossman , Tianfang Ni , Cory A. Demieville , Luke Gerdes , Robyn Freeman , Oleksandr Klesov , Luciano Kiniti Issoe
IPC分类号： G06Q10/04 , C22B3/06 , C22B15/00 , G06Q10/0631 , G06Q50/02
CPC分类号： G06Q10/04 , C22B3/06 , C22B15/0067 , C22B15/0095 , G06Q10/0631 , G06Q50/02
摘要： The method may comprise receiving historical data (e.g., mineralogy data, irrigation data, raffinate data, heat data, lift height data, geographic data on ore placement and/or blower data); training a predictive model using the historical data to create a trained predictive model; adding future assumption data to the trained predictive model; running the forecast engine for a plurality of parameters to obtain forecast data for a mining production target; comparing the forecast data for the mining production target to the actual data for the mining production target; determining deviations between the forecast data and the actual data, based on the comparing; and changing each of the plurality of parameters from the forecast data to the actual data to determine a contribution to the deviations for each of the plurality of parameters.
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公开(公告)号：US20240209475A1
公开(公告)日：2024-06-27
申请号：US18283707
申请日：2022-01-24
申请人： Peter F. Santina
发明人： Peter F. Santina , Gerald DeNeal
摘要： Overburden from surface coal mining in many regions can produce a rain runoff laden with selenium, in the selenate form, as well as rare earth elements (REEs). This occurs from rainwater leaching through exposed selenium/mineral-containing rocks in the overburden. The mineral-containing runoff water is caught in ponds, or deep mine water is collected from pools. Alternatively, leachate can be collected from coal gob or refuse piles, or from a final cut lake resulting from a coal strip mining operation. Extraction of REEs, as well as remediation of deleterious substances such as selenium, is performed by treatment with sulfur-modified iron (SMI) in a contact bed of an upflow reactor vessel. After a period of use of the SMI, the spent SMI is subjected to a recovery process for REEs.
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公开(公告)号：US11959152B2
公开(公告)日：2024-04-16
申请号：US16975705
申请日：2019-04-26
发明人： Zhongwei Zhao , Yongli Li
IPC分类号： C22B34/34 , C01G39/02 , C22B1/02 , C22B3/06 , C22B3/08 , C22B3/10 , C22B3/26 , C22B3/38 , C22B3/44
CPC分类号： C22B34/34 , C01G39/02 , C22B1/02 , C22B3/06 , C22B3/065 , C22B3/08 , C22B3/10 , C22B3/26 , C22B3/3842 , C22B3/3844 , C22B3/3846 , C22B3/44
摘要： Disclosed is a method for clean metallurgy of molybdenum, including steps: 1) roasting molybdenite with calcium to obtain calcified molybdenum calcine, and leaching the calcified molybdenum calcine with an inorganic acid to obtain a molybdenum-containing inorganic acid leachate; 2) extracting molybdenum in the leachate with a cationic extractant to obtain an organic phase loaded with molybdyl cations and a raffinate; 3) using a hydrogen peroxide solution as a stripping agent to obtain a molybdenum stripping liquor; and 4) heating the molybdenum stripping liquor to dissociate peroxymolybdic acid therein so as to form a molybdic acid precipitate, and then calcining to obtain a molybdenum trioxide product. The method solves the problem of ammonia nitrogen wastewater production and can also be used for the enrichment and recovery of rhenium.
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6.发明授权公开(公告)号：US11913090B2
公开(公告)日：2024-02-27
申请号：US17519341
申请日：2021-11-04
发明人： Nolan Theaker , Daniel Laudal
CPC分类号： C22B59/00 , B01D11/028 , B01D11/0288 , C22B3/06
摘要： A method for extracting rare earth elements and critical minerals including adding an acid to a mixture comprising organically bound rare earth elements. The mixture is maintained at a pH of 0.25 to 4 for a period of time, resulting in a liquor and a leached mixture. The liquor is removed from the leached mixture to form a dewatered cake. The dewatered cake is washed to form a washing liquid. The washing liquid is recycled to create a second slurry comprising organically bound rare earth elements.
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公开(公告)号：US20240037462A1
公开(公告)日：2024-02-01
申请号：US18485143
申请日：2023-10-11
发明人： Dana Geislinger , Travis Gaddie , Margaret Alden Tinsley , Steven Chad Richardson , Raquel Crossman , Cristian Caro , Kevin Cheng , Rosemary D. Blosser , Amelia Briggs
IPC分类号： G06Q10/04 , G06Q50/02 , C22B15/00 , C22B3/06 , G06Q10/0631
CPC分类号： G06Q10/04 , G06Q50/02 , C22B15/0095 , C22B3/06 , C22B15/0067 , G06Q10/0631
摘要： The system may include a secondary irrigation feature that determines a percent of overlap of each of a plurality of submodules in a first lift over each of a plurality of submodules in a second lift and adjusts at least one of leaching operations or a leaching model based on the total tonnage weighted average of metal in the second lift. The method may further comprise determining an acid gap based on a difference between total acid given and total acid consumption; and further adjusting at least one of the leaching operations or the leaching model based on the acid gap. The method may further comprise determining a percentage of compacted material based on the material that is compacted and irrigated divided by the material that is irrigated; and further adjusting at least one of the leaching operations or the leaching model based on the percentage of compacted material.
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公开(公告)号：US20240018624A1
公开(公告)日：2024-01-18
申请号：US18034958
申请日：2021-10-27
发明人： Pradeep THALAPPIL , Nag ABHIJIT
CPC分类号： C22B11/042 , C22B3/10 , C22B3/065 , C22B3/22 , C22B7/007 , C22B11/021 , C22B3/44 , C22B5/08 , C22B7/002
摘要： The present invention relates to a method for selectively precipitating and extracting gold in aqueous solution by niacin. Aqueous Au3+ is precipitated selectively as it's complex from gold containing acidic mixtures by biomolecule niacin, with the formula [AuCl4]−[2Niacin+H]+. After precipitation, the complex is separated from impurities by filtration. Recovered complex is reduced by using a reductant like sodium metabisulfite (Na2S2O5) to recover gold metal. The method is highly cost-effective, sustainable and recovers about 96.5% of gold in 2 minutes from an electronic waste composed of Au. Cu and Ni. The method is also employed to extract gold from nanomaterials waste generated in laboratories.
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公开(公告)号：US20230374683A1
公开(公告)日：2023-11-23
申请号：US18226604
申请日：2023-07-26
申请人： ELECTRASTEEL, INC.
摘要： Methods and systems for dissolving an iron-containing ore are disclosed. For example, a method of processing and dissolving an iron-containing ore comprises: thermally reducing one or more non-magnetite iron oxide materials in the iron-containing ore to form magnetite in the presence of a reductant, thereby forming thermally-reduced ore; and dissolving at least a portion of the thermally-reduced ore using an acid to form an acidic iron-salt solution; wherein the acidic iron-salt solution comprises protons electrochemically generated in an electrochemical cell.
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公开(公告)号：US11821056B2
公开(公告)日：2023-11-21
申请号：US17815823
申请日：2022-07-28
申请人： Uong Chon
发明人： Uong Chon
CPC分类号： C22B26/12 , C01D15/08 , C22B3/06 , C01P2002/72 , C01P2006/80
摘要： The lithium extraction method includes providing lithium phosphate containing impurities of an alkaline earth metal; dissolving the lithium phosphate and the impurities in an acid; and preparing a lithium-containing solution by adding an additive to a solution prepared by dissolving the lithium phosphate and the impurities in the acid. The additive is a substance capable of simultaneously precipitating phosphate anions and the impurities, and the lithium-containing solution prepared through addition of the additive is basic.
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