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1.发明公开公开(公告)号：US20240336990A1
公开(公告)日：2024-10-10
申请号：US18744443
申请日：2024-06-14
Applicant: Jetti Resources, LLC
Inventor： David Dixon , Oscar Olvera Olmedo , Edouard Asselin , Ahmad Ghahreman , Zihe Ren
IPC: C22B3/08 , C01G1/00 , C01G3/10 , C01G11/00 , C01G49/14 , C01G53/10 , C22B3/00 , C22B3/20 , C22B3/42 , C22B15/00 , C25C1/12
CPC classification number: C22B3/08 , C01G1/00 , C01G3/10 , C01G11/00 , C01G49/14 , C01G53/10 , C22B3/20 , C22B3/42 , C22B15/0071 , C22B17/04 , C22B23/043 , C25C1/12 , Y02P10/20
Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
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公开(公告)号：US11884993B2
公开(公告)日：2024-01-30
申请号：US16748553
申请日：2020-01-21
Applicant: Jetti Resources, LLC
Inventor： David Dixon , Oscar Olvera Olmedo , Edouard Asselin , Ahmad Ghahreman , Zihe Ren
IPC: C22B3/08 , C22B3/42 , C22B15/00 , C22B3/00 , C25C1/12 , C01G3/10 , C01G53/10 , C01G11/00 , C01G49/14 , C01G1/00 , C22B3/20
CPC classification number: C22B3/08 , C01G1/00 , C01G3/10 , C01G11/00 , C01G49/14 , C01G53/10 , C22B3/20 , C22B3/42 , C22B15/0071 , C22B17/04 , C22B23/043 , C25C1/12 , Y02P10/20
Abstract: This application pertains to methods of recovering metals from metal sulfides that involve contacting the metal sulfide with an acidic sulfate solution containing ferric sulfate and a reagent that has a thiocarbonyl functional group, wherein the concentration of reagent in the acidic sulfate solution is sufficient to increase the rate of metal ion extraction relative to an acidic sulfate solution that does not contain the reagent, to produce a pregnant solution containing the metal ions.
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公开(公告)号：US20230331571A1
公开(公告)日：2023-10-19
申请号：US18212177
申请日：2023-06-20
Applicant: GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD. , HUNAN BRUNP EV RECYCLING CO., LTD.
Inventor： Yinghao Xie , Haijun Yu , Aixia Li , Xuemei Zhang , Changdong Li
IPC: C01D15/08 , C01G45/10 , C01G53/10 , C01G51/10 , H01M10/54 , C22B7/00 , C22B26/12 , C22B21/00 , C22B15/00 , C22B3/00 , C22B3/22 , C22B47/00
CPC classification number: C01D15/08 , C01G45/10 , C01G53/10 , C01G51/10 , H01M10/54 , C22B7/007 , C22B26/12 , C22B21/0023 , C22B15/0071 , C22B23/043 , C22B3/22 , C22B47/00
Abstract: The present disclosure discloses a wet process for recovering valuable metals from a lithium battery. In the method, a waste lithium battery powder is subjected to selective leaching under the condition that a hydrogen sulfide gas is introduced through pressurization, such that Mn2+, Li+, and Al3+ metal ions enter a first-stage leaching liquor and nickel, cobalt, copper, and iron exist in a first-stage leaching residue in the form of a sulfide; then a pH of the first-stage leaching liquor is adjusted to remove aluminum and manganese, which achieves extremely thorough metal separation and leads to relatively pure products; a first-stage leaching residue is subjected to leaching in an acid liquor under a negative pressure, such that the sulfides of nickel, cobalt, iron, and copper are dissolved in a second-stage leaching liquor, and a hydrogen sulfide gas produced can be recycled in the first-stage leaching procedure through pressurization.
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4.发明授权公开(公告)号：US11692238B2
公开(公告)日：2023-07-04
申请号：US17625746
申请日：2020-11-11
Applicant: Beijing University of Technology
Inventor： Yufeng Wu , Gongqi Liu , Bin Li
CPC classification number: C22B1/06 , C22B7/007 , C22B11/042 , C22B15/0071 , C22B19/30
Abstract: The invention discloses a method for cracking slag and smelting soot of the waste circuit board, belongs to the field of comprehensive recycling of valuable elements from typical soot of waste circuit boards, and particularly relates to a method for cracking slag and smelting soot of the waste circuit board for debromination and comprehensive recovery of copper and zinc. The method includes the following steps of: crushing and sorting, mixture roasting, reinforced leaching, replacement and silver precipitation, sulfuration and copper precipitation, and evaporation crystallization. Compared to traditional recycling technology, the purpose of treating two kinds of solid waste in a coupling mode through one recycling technology is achieved. Through mixed sulfuric acid roasting, the requirement of bromide synergistic removal of the waste circuit board cracking slag and smelting soot is met, and the purpose of selective conversion of copper and zinc is achieved.
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公开(公告)号：US20180187287A1
公开(公告)日：2018-07-05
申请号：US15737513
申请日：2016-09-12
Applicant: JX NIPPON MINING & METALS CORPORATION
Inventor： Katsuyuki SATO , Akira MIURA
CPC classification number: C22B15/0071 , C22B3/44 , Y02P10/234 , Y02P10/236
Abstract: The present invention provides a method for efficiently leaching copper from copper sulfide ore by separating and recovering iodine, and iron(III) ions to be used are regenerated by a heap of stacked ore in the method for leaching copper from copper sulfide using a sulfuric acid solution containing iodide ions and iron(III) ions as a leaching solution. The present invention relates to a method for leaching copper from copper sulfide, comprising the following steps: a copper leaching step for leaching copper from copper sulfide ore using a sulfuric acid solution containing iodide ions and iron(III) ions as a leaching solution to yield a first solution; an iodine separation treatment step for separating iodine in the first solution to yield a second solution having a lowered concentration of iodine therein; and an iron oxidation step for oxidizing the second solution to yield a third solution, leaching the copper sulfide ore or another copper sulfide using the third solution and an aqueous solution containing iodine, wherein the iron oxidation step comprises irrigating the solution after iodine separation treatment onto stacked ore, thereby oxidizing iron(II) ions existing in the solution after iodine treatment and generated by copper leaching.
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Patent Agency Ranking
公开(公告)号：US20170327962A1
公开(公告)日：2017-11-16
申请号：US15531360
申请日：2014-11-28
CPC classification number: C25C1/12 , C22B3/045 , C22B15/0008 , C22B15/0071 , C25C7/02 , C25C7/06 , Y02P10/236
Abstract: The invention relates to a process that allows electrolytic copper cathodes to be produced, using the pregnant leach solution (PLS) directly in the electrowinning, avoiding the step of mineral concentration by solvent extraction. Furthermore, this process has a modular structure and the full process can be mobilised depending on the requirements of the process itself. The invention also relates to the system that operates with the previously described process.
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公开(公告)号：US20160304988A1
公开(公告)日：2016-10-20
申请号：US15101241
申请日：2014-12-03
Applicant: THE UNIVERSITY OF QUEENSLAND
Inventor： James VAUGHAN , William HAWKER , Peter HAYES , Evgueni JAK
CPC classification number: C22B15/0052 , C22B1/02 , C22B1/248 , C22B3/065 , C22B3/08 , C22B3/10 , C22B3/44 , C22B15/0015 , C22B15/0069 , C22B15/0071 , C22B15/0073 , C22B15/0086 , C22B15/0089 , C25C1/12 , Y02P10/236
Abstract: A method of processing a copper-containing source material is provided whereby an aqueous acidic leach solution of the copper-containing source material is formed and then contacted with a pH increasing agent to thereby cause the precipitation of a copper-containing intermediate. The copper-containing intermediate can then be collected and exposed to a high temperature treatment, such as would be encountered in smelter or converter operations.
Abstract translation: 提供处理含铜源材料的方法，由此形成含铜源材料的酸性浸出溶液，然后与pH增加剂接触，从而引起含铜中间体的沉淀。 然后可以收集含铜中间体并暴露于高温处理，例如在冶炼厂或转炉操作中遇到的。
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公开(公告)号：US20160138128A1
公开(公告)日：2016-05-19
申请号：US14896885
申请日：2014-06-10
Applicant: MEURICE RECHERCHE ET DEVELOPPEMENT
Inventor： Xavier Nicolay , Karine Vauchel
CPC classification number: C22B3/18 , B22F1/0003 , B22F9/24 , B22F2009/245 , B22F2301/10 , B22F2301/255 , B22F2301/35 , B22F2304/10 , C21B15/00 , C22B1/005 , C22B3/08 , C22B11/046 , C22B15/0065 , C22B15/0071 , Y02P10/234
Abstract: The invention relates to a method for recovering at least one metal present within a material, said material possibly including iron, said method including a step of supplying a ferrous ion, a step of supplying a ferric ion, and a step of bioleaching at least one metal present in the material by the ferric ions, each one of the steps being implemented by a particular bacterial population.
Abstract translation: 本发明涉及一种用于回收材料中存在的至少一种金属的方法，所述材料可能包括铁，所述方法包括提供亚铁离子的步骤，提供三价铁离子的步骤和生物浸出步骤至少一种 通过铁离子存在于材料中的金属，每个步骤由特定细菌群体实现。
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公开(公告)号：US08968442B2
公开(公告)日：2015-03-03
申请号：US13503338
申请日：2010-10-20
Applicant: David G. Dixon , Berny Rivera-Vasquez
Inventor： David G. Dixon , Berny Rivera-Vasquez
CPC classification number: C22B15/0071 , C22B3/24 , C22B15/0086 , C22B15/0089 , Y02P10/234 , Y02P10/236
Abstract: A method of recovering copper from a copper sulfide concentrate comprising a copper arsenic sulfosalt or a copper antimony sulfosalt, using carbon as a catalyst. The concentrate and carbon are added to an acidic sulfate leach solution. The copper is leached from the concentrate, in the presence of an oxygen-containing gas. The operating potential is maintained above a selected level. The carbon copper sulfide ratio of the carbon being added to the copper sulfide present in the concentrate being added is at least 1:20. The carbon may be maintained above a selected concentration in the leach solution. The leached copper is recovered from the solution by conventional methods.
Abstract translation: 使用碳作为催化剂从铜硫化物浓缩物中回收铜的方法，其包含铜砷磺酸盐或铜锑磺酸盐。 将浓缩物和碳添加到酸性硫酸盐浸出溶液中。 在含氧气体的存在下，从浓缩物中浸出铜。 工作电位维持在选定的水平以上。 加入到加入浓缩物中的硫化铜中的碳的碳化铜比例至少为1:20。 可以在浸出溶液中将碳保持在选定浓度以上。 通过常规方法从溶液中回收浸出的铜。
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公开(公告)号：US08741238B2
公开(公告)日：2014-06-03
申请号：US13965960
申请日：2013-08-13
Applicant: Polymet Mining Corp.
Inventor： David Bruce Dreisinger
IPC: B03D1/00
CPC classification number: C22B15/0089 , B03D1/02 , C22B11/04 , C22B15/0008 , C22B15/0069 , C22B15/0071 , Y02P10/236
Abstract: In one aspect, the invention provides processes for producing an enriched copper concentrate from a copper-and-nickel-containing ore. Processes of the invention may include an initial step of comminuting the ore, to provide a ground ore comprising copper minerals and nickel minerals. The ground ore may be subjected to a floatation process, to separate the ground ore into distinct fractions, such as first and second concentrates. A first concentrate may for example be made up of copper-enriched-and-nickel-containing solids, while a second concentrate is made up of nickel-enriched-and-copper-containing solids. The floatation process may for example fractionate the ore so that the concentration of copper minerals is higher in the first concentrate than in the ore, and the concentration of the nickel minerals is higher in the second concentrate than the ore.
Abstract translation: 一方面，本发明提供了从含铜和镍的矿石生产富集的铜精矿的方法。 本发明的方法可以包括粉碎矿石的初始步骤，以提供包含铜矿物和镍矿物的研磨矿石。 研磨矿石可以进行漂浮工艺，将研磨的矿石分离成不同的馏分，例如第一和第二浓缩物。 第一浓缩物可以例如由富含铜和含镍的固体组成，而第二浓缩物由富含镍和含铜的固体组成。 浮选过程可以例如将矿石分馏，使得第一浓缩物中的铜矿物质的浓度高于矿石，并且第二浓缩物中的镍矿物质的浓度高于矿石。
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