公开(公告)号：US20240301532A1

公开(公告)日：2024-09-12

申请号：US18597012

申请日：2024-03-06

Applicant: Khalifa University of Science and Technology

Inventor： Giovanni PALMISANO ,  Marica MUSCETTA ,  Roberto ANDREOZZI ,  Raffaele MAROTTA ,  Laura CLARIZIA ,  Ilaria DI SOMMA ,  Marco RACE

IPC: C22B11/00 ,  C22B3/16 ,  C22B7/00 ,  C22B15/00

CPC classification number: C22B11/042 ,  C22B3/165 ,  C22B7/007 ,  C22B15/0069

Abstract: A method of recovering gold from a metal combination includes contacting the metal combination with a first leaching liquid sufficient to oxidize one or more additional metals of the metal combination to produce an oxidized product liquid and a recovered gold product, wherein the first leaching liquid includes chloride ions.

公开(公告)号：US11732325B2

公开(公告)日：2023-08-22

申请号：US16955936

申请日：2018-12-20

Applicant: BHP CHILE INC

Inventor： Damaso Barrios Ormeno ,  Clement Chilowa Chibwana ,  Johannes Mattheus Strauss ,  Gary Vernon Rorke

IPC: C22B15/00

CPC classification number: C22B15/0084 ,  C22B15/0008 ,  C22B15/0069

Abstract: A method of controlling the acid balance in a high chloride heap leach process tomaximise the copper dissolution in a cure step and to increase overall copper recovery which include an agglomeration stage in which acid and process solutions are combined with the ore prior to stacking to form a heap followed by a cure phase to leach a portion of the copper in the ore in the heap followed by an irrigated leach phase in which the remaining copper minerals are leached and copper is recovered from a pregnant leach solution by a solvent extraction step followed by an electrowinning step wherein the acid concentration in the pregnant leach solution which reports to the solvent extraction step is less than 10 g/L to allow effective copper recovery from the pregnant leach solution in the solvent extraction step.

公开(公告)号：US09771631B2

公开(公告)日：2017-09-26

申请号：US13322257

申请日：2010-05-26

Applicant: Nicholas James Welham ,  Garry Mervyn Johnston ,  Matthew Leslie Sutcliffe

Inventor： Nicholas James Welham ,  Garry Mervyn Johnston ,  Matthew Leslie Sutcliffe

IPC: C22B11/00 ,  C22B5/00 ,  C22B3/10 ,  C22B15/00 ,  C22B3/00

CPC classification number: C22B3/10 ,  C22B11/04 ,  C22B15/0069 ,  C22B19/22 ,  C22B23/0423 ,  Y02P10/234 ,  Y02P10/236

Abstract: A method for leaching one or more target metals from a sulfide ore and/or concentrate containing such, the method comprising the steps of: (a) Exposing the ore and/or concentrate to an aqueous solution of chlorine-based oxidising species in which the hypochlorous acid comprises at least 10 mol % of the chlorine-based oxidising species; (b) Allowing and/or facilitating the oxidation of the target metals by the hypochlorous acid, thereby decreasing the pH such that the predominant chlorine-based oxidising species becomes chlorine; (c) Allowing and/or facilitating the oxidation of the target metals by the chlorine; (d) Allowing and/or facilitating the dissolution of the target metals by the solution species formed during the oxidation by hypochlorous acid and/or chlorine; and (e) Passing the pregnant solution produced thereby to a means for metal recovery.

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

IPC: C22B15/00 ,  C22B3/10 ,  C22B1/248 ,  C22B3/06 ,  C22B3/44 ,  C25C1/12 ,  C22B1/02 ,  C22B3/08

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。

公开(公告)号：US20160222487A1

公开(公告)日：2016-08-04

申请号：US15022476

申请日：2014-09-16

Applicant: ITRI INNOVATION LTD ,  ULTROMEX LTD

Inventor： Paul Cusack ,  Jonathan Quinn ,  Harry Middleton

IPC: C22B15/00 ,  C22B3/00 ,  C22B25/06 ,  C22B7/00

CPC classification number: C22B15/0069 ,  C22B7/007 ,  C22B11/046 ,  C22B13/045 ,  C22B25/06 ,  C23F1/30 ,  Y02P10/234

Abstract: A method for recovering metal from electronic waste contacting electronic waste with a recovery solution to dissolve metals from the electronic waste into the recovery solution, wherein the recovery solution comprises nitric acid and ferric nitrate; and raising the pH of the recovery solution to precipitate at least some of said metals therefrom.

Abstract translation: 一种从电子废物接收电子废物中回收金属的方法，用回收溶液将金属从电子废物溶解到回收溶液中，其中回收溶液包括硝酸和硝酸铁; 并提高回收溶液的pH以从其中沉淀至少一些所述金属。

公开(公告)号：US20150232963A1

公开(公告)日：2015-08-20

申请号：US14422910

申请日：2013-08-21

Applicant: BHP Chile Inc.

Inventor： Eduardo Luis Patiño Martinez ,  Michael James Nicol ,  George Frederick Rautenbach

IPC: C22B15/00 ,  C22B3/06 ,  C22B1/16

CPC classification number: C22B15/0069 ,  C22B1/00 ,  C22B1/16 ,  C22B3/06 ,  C22B3/10 ,  C22B15/0008 ,  C22B15/0067 ,  Y02P10/234 ,  Y02P10/236

Abstract: A process of extracting copper from copper sulphide minerals which is enhanced at solution potentials exceeding 700 mV SHE, in the absence of any microorganism, by contacting the minerals in a pre-treatment phase using an acid solution at a high chloride content containing dissolved copper.

Abstract translation: 在不存在任何微生物的情况下，通过使用含有溶解铜的高氯化物含量的酸溶液在预处理阶段使矿物接触，从溶解电位超过700mV SHE的硫化铜矿物中提取铜的方法。

公开(公告)号：US08911532B2

公开(公告)日：2014-12-16

申请号：US13990481

申请日：2011-12-09

Applicant: Manabu Manabe

Inventor： Manabu Manabe

IPC: C22B15/00

CPC classification number: C22B15/0069 ,  Y02P10/236

Abstract: The present invention provides a method of leaching copper from a copper sulfide ore, wherein operating costs and environmental impacts can be effectively reduced. The present invention is a method of leaching copper from a copper sulfide ore by a process of leaching a layer of stacked ores, wherein the leaching solution containing Fe (III) ion and other leaching solution containing iodide ion are fed through routes independent of each other to a layer of stacked ores containing a copper sulfide ore.

Abstract translation: 本发明提供了一种从硫化铜矿石中浸出铜的方法，其中可以有效降低操作成本和环境影响。 本发明是通过浸出层叠矿石的方法从硫化铜矿石中浸出铜的方法，其中含有Fe（III）离子的浸出溶液和含有碘离子的其它浸出溶液通过彼此独立的路线进料 到含有硫化铜矿石的堆叠矿石层。

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。

公开(公告)号：US08597933B2

公开(公告)日：2013-12-03

申请号：US13000824

申请日：2009-06-25

Applicant: George Frederick Rautenbach ,  Carol Susan Davis-Belmar ,  Cecilia Susana Demergasso

Inventor： George Frederick Rautenbach ,  Carol Susan Davis-Belmar ,  Cecilia Susana Demergasso

IPC: C02F3/34 ,  C12N1/20

CPC classification number: C22B3/18 ,  C22B3/08 ,  C22B3/10 ,  C22B15/0069 ,  C22B15/0071 ,  C22B15/0097 ,  Y02P10/234 ,  Y02P10/236

Abstract: A copper bioleaching process which makes use of a consortium which contains Leptospirillum ferriphilum and a sulphur oxidising microorganism which is halophilic or halotolerant.

Abstract translation: 铜生物浸出工艺利用含有钩端螺旋体的铁矿石和硫氧化微生物，它是嗜盐的或不耐用的。

公开(公告)号：US08585798B2

公开(公告)日：2013-11-19

申请号：US12232103

申请日：2008-09-10

Applicant: Yoshifumi Abe ,  Hiroshi Hosaka ,  Kazuaki Takebayashi ,  Yasunari Ishiguro ,  Akira Yoshimura

Inventor： Yoshifumi Abe ,  Hiroshi Hosaka ,  Kazuaki Takebayashi ,  Yasunari Ishiguro ,  Akira Yoshimura

IPC: C22B11/00

CPC classification number: C22B11/048 ,  C22B3/0005 ,  C22B3/065 ,  C22B3/24 ,  C22B7/007 ,  C22B7/008 ,  C22B7/009 ,  C22B11/04 ,  C22B11/06 ,  C22B15/0069 ,  C22B15/0093 ,  Y02P10/214 ,  Y02P10/234 ,  Y02P10/236

Abstract: The copper sulfide ore is leached in the halide bath without using a special oxidant but with the use of only air. The copper and gold in the copper sulfide ore can be leached at high leaching ratio.The treating steps are as follows. (1) Copper leaching process (CL). The raw material is charged into the first acidic aqueous solution, which contains cupric chloride, ferric chloride, 7 g/L of hydrochloric acid, and sodium chloride. The post-leach liquor contains copper in cuprous state ions and copper in cupric state ions. (2) Solid-Liquid separation step. The resultant solid and liquid of CL step are separated. (3) Air oxidation step (OX). Air is blown into the post solid-liquid separation liquor. The copper in cuprous state ions are oxidized to the copper in cupric state ions. The iron leached in the step (1) is oxidized. Simultaneously, the impurities leached in the step (2) are precipitated. (4) Copper extracting step (CEX). The copper is recovered from the post-liquor of the step (3) (5) Gold recovering step (AL). The residue separated in the step (2) is added to the leach liquor similar to that of the step (1). The steps (1) and (5) are carried out under the atmospheric pressure and at the temperature of boiling point or lower, while blowing air into the leach liquor.