公开(公告)号：US09777346B2

公开(公告)日：2017-10-03

申请号：US14845101

申请日：2015-09-03

Applicant: BATTELLE ENERGY ALLIANCE, LLC.

Inventor： Tedd E Lister ,  Jacob A Parkman ,  Luis A Diaz Aldana ,  Gemma Clark ,  Eric J Dufek ,  Philip Keller

IPC: C25C1/12 ,  C22B3/04 ,  C22B11/00 ,  C22B3/10 ,  C22B3/44 ,  C25C7/06 ,  C25C1/20 ,  C22B3/00 ,  C25C1/06 ,  C25C1/08 ,  C25C1/14 ,  C25C1/16 ,  C25C1/18 ,  C25C1/22 ,  C25C7/02 ,  C22B3/08

CPC classification number: C22B11/046 ,  C22B3/08 ,  C22B3/10 ,  C22B3/44 ,  C25C1/06 ,  C25C1/08 ,  C25C1/12 ,  C25C1/14 ,  C25C1/16 ,  C25C1/18 ,  C25C1/20 ,  C25C1/22 ,  C25C7/02 ,  C25C7/06 ,  Y02P10/214 ,  Y02P10/234

Abstract: A method of recovering metals from electronic waste comprises providing a powder comprising electronic waste in at least a first reactor and a second reactor and providing an electrolyte comprising at least ferric ions in an electrochemical cell in fluid communication with the first reactor and the second reactor. The method further includes contacting the powders within the first reactor and the second reactor with the electrolyte to dissolve at least one base metal from each reactor into the electrolyte and reduce at least some of the ferric ions to ferrous ions. The ferrous ions are oxidized at an anode of the electrochemical cell to regenerate the ferric ions. The powder within the second reactor comprises a higher weight percent of the at least one base metal than the powder in the first reactor. Additional methods of recovering metals from electronic waste are also described, as well as an apparatus of recovering metals from electronic waste.

公开(公告)号：US20170145543A1

公开(公告)日：2017-05-25

申请号：US15318993

申请日：2015-06-17

Applicant: Samancor Manganese (Proprietary) Limited

Inventor： Johannes Theodorus Ferreira LE ROUX

IPC: C22B47/00 ,  C01F5/02 ,  C22B3/06 ,  C01F11/02 ,  C22B1/24 ,  C22B3/10

CPC classification number: C22B47/00 ,  C01F5/02 ,  C01F11/02 ,  C22B1/00 ,  C22B1/24 ,  C22B3/06 ,  C22B3/065 ,  C22B3/10 ,  Y02P10/234

Abstract: A process for the beneficiation of Manganese ore which includes the step of leaching of the ore with acid to remove Calcium Carbonate and Magnesium Carbonate. The ore is first broken down to the required particle size by conventional means. Selective leaching of Calcium oxide and Magnesium carbonate occurs leaving an ore having a higher Manganese content.

公开(公告)号：US09657371B2

公开(公告)日：2017-05-23

申请号：US14773716

申请日：2013-11-08

Applicant: OPENED JOINT STOCK COMPANY “UNITED CHEMICAL COMPANY URALCHEM”

Inventor： Mikhail Vladimirovich Genkin ,  Aleksey Vladimirovich Evtushenko ,  Aleksey Aleksandrovich Komkov ,  Alfiya Minerovna Safiulina ,  Vasiliy Sergeevich Spiridonov ,  Sergey Vladimirovich Shvetsov

IPC: C22B59/00 ,  C22B3/06 ,  C22B3/10

CPC classification number: C22B59/00 ,  C22B3/06 ,  C22B3/065 ,  C22B3/10 ,  Y02P10/234

Abstract: The present invention relates to a method for complex processing of apatite concentrate resulting in producing concentrate of rare earth metals (REM) and plaster from phosphogypsum, a waste of sulphuric acid technology for producing phosphoric acid from apatite. The method comprises leaching of REM into solution by recrystallization of hemihydrate or anhydrite of calcium sulphate into dihydrate of calcium sulphate with a soluble calcium salt at concentrations of 0.075-3.75 M (in terms of Ca2+) and strong acid (pKa0) at a concentration of 0.2-8.0 M (in terms of H+). Recovery of REM into solution is up to 98%, the residual content of impurities of phosphorus, fluorine and alkali metals in dihydrate of calcium sulphate does not exceed 0.3 wt. %, 0.1 wt. %, 0.05 wt. %, respectively.

公开(公告)号：US20170073794A1

公开(公告)日：2017-03-16

申请号：US15358647

申请日：2016-11-22

Applicant: NOVEL MINING LIMITED

Inventor： Peter Marino Pavlovich ,  Craig Rothwell Hughes ,  Brendan Allan Woodley

IPC: C22B3/00 ,  C01B13/10 ,  C22B3/20 ,  C22B3/10 ,  C22B3/14

CPC classification number: C22B11/04 ,  C01B13/10 ,  C22B3/02 ,  C22B3/06 ,  C22B3/10 ,  C22B3/14 ,  C22B3/20 ,  Y02P10/234

Abstract: A process includes at least formulating an aqueous oxidizing solution by addition of ingredients to water, wherein the aqueous oxidizing solution has a pH of less than 0.7 primarily from at least one strong acid, at between 0.04% and 0.42% weight/volume of persulphate anions, and 0.03% to 0.1% weight/volume of hydrogen peroxide; an irradiation step wherein ozone is produced by irradiating oxygen with an ultraviolet source wherein the ozone is present in the solution at a concentration of 0.75 to 2 mg/L ozone; a metal solubilization step of oxidizing and thereby rendering soluble a desired at least one metal from a ground amount of ore in suspension; collecting a pregnant liquor from the suspension; and selectively removing at least a portion of the at least one metal from the liquor while at a pH of less than 3, such that any remaining liquid is a recyclable liquor.

Abstract translation: 一种方法包括至少通过向水中加入配料来配制水性氧化性溶液，其中所述含水氧化溶液的pH值小于0.7，主要来自至少一种强酸，0.04％至0.42％重量/体积的过硫酸根阴离子 ，和0.03〜0.1重量/体积的过氧化氢; 照射步骤，其中通过用紫外光照射氧而产生臭氧，其中臭氧以0.75至2mg / L浓度的臭氧存在于溶液中; 金属溶解步骤，其氧化并由此使悬浮液中的矿石中所需的至少一种金属溶解; 从悬浮液中收集怀孕的酒; 以及在小于3的pH下从所述液体中选择性地除去所述至少一种金属的至少一部分，使得任何剩余的液体是可回收液体。

公开(公告)号：US20160355907A1

公开(公告)日：2016-12-08

申请号：US15156996

申请日：2016-05-17

Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES

Inventor： Byung-Su KIM ,  Hanjung KWON ,  Ki-Min ROH ,  Chang-Youl SUH ,  Ji-Hyuk CHOI

IPC: C22B34/36 ,  C22B3/00 ,  C22B21/00 ,  C22B1/248 ,  C22B7/00 ,  C22B3/08 ,  C22B3/10 ,  C22B3/12 ,  C22B3/14 ,  C22B3/22 ,  C22B23/00 ,  C22B3/06

CPC classification number: C22B34/36 ,  B01F3/2284 ,  C22B1/005 ,  C22B3/065 ,  C22B3/08 ,  C22B3/10 ,  C22B3/12 ,  C22B3/14 ,  C22B3/22 ,  C22B7/007 ,  C22B7/008 ,  C22B23/0415 ,  C22B23/0423 ,  C22B23/043 ,  C22B23/0438 ,  C22B23/0446 ,  C22B23/0453 ,  C22C29/08 ,  Y02P10/218 ,  Y02P10/234

Abstract: Provided are a method for crushing hard tungsten carbide (WC) scraps which is a pre-step of alkaline leaching and acid leaching processes for recycling of tungsten and cobalt, the method including mixing hard tungsten carbide (WC) scraps such as chips, wires, bolts, drills, etc., that are metalworking tools to be discarded after being used, with aluminum, followed by heating to a high temperature, to form an intermetallic compound, metal oxides, or mixtures thereof in a sponge form, and crushing the intermetallic compound, the metal oxides, or the mixtures thereof in a sponge form. Further, provided is a method for recovering tungsten and cobalt from hard tungsten carbide (WC) scrap powder through alkaline leaching and acid leaching methods,

Abstract translation: 本发明提供一种破碎硬质碳化钨（WC）废料的方法，该碳化钨废渣是用于钨和钴再循环的碱浸液和酸浸法的前期步骤，该方法包括将硬质碳化钨（WC） 螺栓，钻头等，这些金属加工工具在使用后要与铝一起被抛弃，随后加热到高温，以形成海绵状的金属间化合物，金属氧化物或其混合物，并将金属间的粉碎 化合物，金属氧化物或其以海绵形式的混合物。 此外，提供了通过碱浸液和酸浸法从硬质碳化钨（WC）废粉中回收钨和钴的方法，

公开(公告)号：US09416431B2

公开(公告)日：2016-08-16

申请号：US13395267

申请日：2010-09-09

Applicant: Willem Liebenberg Retief ,  Nelius Dempers Retief ,  Johannes Theodorus Nel ,  Wilhelmina Du Plessis ,  Philippus Lodewyk Crouse ,  Johannes Petrus Le Roux

Inventor： Willem Liebenberg Retief ,  Johannes Theodorus Nel ,  Wilhelmina Du Plessis ,  Philippus Lodewyk Crouse ,  Johannes Petrus Le Roux

IPC: C01B7/00 ,  C01C1/16 ,  C22B3/10 ,  C22B34/10 ,  C22B34/12 ,  C22B34/14 ,  C22B34/24

CPC classification number: C22B3/10 ,  C22B34/10 ,  C22B34/1213 ,  C22B34/14 ,  C22B34/24 ,  Y02P10/234

Abstract: A process for treating a feedstock is provided. The feedstock comprises a mineral and/or a metal oxide/silicate derived from or associated with a mineral. The process comprises treating the feedstock by reacting, in a reaction step, the mineral and/or the metal oxide/silicate derived from or associated with a mineral, with an ammonium acid fluoride having the generic formula NH4F.xHF, wherein 1

Abstract translation: 提供了一种处理原料的方法。 原料包含衍生自或与矿物相关的矿物和/或金属氧化物/硅酸盐。 该方法包括通过在反应步骤中将衍生自或与矿物相关的矿物和/或与矿物相关的金属氧化物/硅酸盐与具有通式NH 4 F x H F的铵酸氟化物反应来处理原料，其中1

公开(公告)号：US09353425B2

公开(公告)日：2016-05-31

申请号：US14429017

申请日：2013-09-26

Applicant: ORBITE ALUMINAE INC.

Inventor： Richard Boudreault ,  Denis Primeau ,  Marie-Maxime Labrecque-Gilbert ,  Hubert Dumont

IPC: C22B3/10 ,  C01F5/00 ,  C01F5/10 ,  C01F7/22 ,  C22B26/22 ,  C01B9/02 ,  C01B33/12 ,  C01B7/07 ,  C01G23/053 ,  C01G49/06 ,  C01G49/10 ,  C01G1/02 ,  C01G1/06 ,  C22B3/46 ,  C22B7/00 ,  C22B7/02 ,  C22B7/04 ,  C22B21/00

CPC classification number: C22B3/10 ,  C01B7/0706 ,  C01B9/02 ,  C01B33/126 ,  C01F5/00 ,  C01F5/10 ,  C01F7/22 ,  C01G1/02 ,  C01G1/06 ,  C01G23/0536 ,  C01G49/06 ,  C01G49/10 ,  C21B15/00 ,  C22B3/46 ,  C22B7/007 ,  C22B7/02 ,  C22B7/04 ,  C22B21/0015 ,  C22B21/0023 ,  C22B23/0423 ,  C22B23/0469 ,  C22B26/22 ,  Y02P20/129

Abstract: The disclosed processes can be effective for treating various materials comprising several different metals. These materials can be leached with HCl for obtaining a leachate and a solid. Then, they can be separated from one another and a first metal can be isolated from the leachate. Then, a second metal can further be isolated from the leachate. The first and second metals can each be substantially selectively isolated from the leachate. This can be done by controlling the temperature of the leachate, adjusting pH, further reacting the leachate with HCl, etc. The metals that can be recovered in the form of metal chlorides can eventually be converted into the corresponding metal oxides, thereby allowing for recovering HCl. The various metals can be chosen from aluminum, iron, zinc, copper, gold, silver, molybdenum, cobalt, magnesium, lithium, manganese, nickel, palladium, platinum, thorium, phosphorus, uranium, titanium, rare earth element and rare metals.

Abstract translation: 所公开的方法对于处理包含几种不同金属的各种材料是有效的。 这些材料可以用HCl浸出以获得浸出液和固体。 然后，它们可以彼此分离，并且第一金属可以从渗滤液中分离出来。 然后，第二金属可以进一步与渗滤液隔离。 第一和第二金属可以各自基本上与渗滤液选择性隔离。 这可以通过控制渗滤液的温度，调节pH值，进一步使浸出液与HCl等进行反应来完成。可以以金属氯化物形式回收的金属最终可以转化为相应的金属氧化物，从而可以回收 HCl。 各种金属可以选自铝，铁，锌，铜，金，银，钼，钴，镁，锂，锰，镍，钯，铂，钍，磷，铀，钛，稀土元素和稀有金属。

公开(公告)号：US20160145714A1

公开(公告)日：2016-05-26

申请号：US14950130

申请日：2015-11-24

Applicant: LIFEZONE LIMITED

Inventor： Keith Stuart Liddell ,  Lisa Anne Smith ,  Michael David ADAMS

IPC: C22B3/08 ,  C25C1/20 ,  C22B15/00 ,  C01B7/07 ,  C22B3/10 ,  C22B3/00

CPC classification number: C22B3/08 ,  C01B7/0706 ,  C01B7/0712 ,  C01B7/0718 ,  C22B3/10 ,  C22B3/20 ,  C22B11/04 ,  C22B11/06 ,  C22B15/0069 ,  C22B15/0071 ,  C22B23/0423 ,  C22B23/043 ,  C25C1/20 ,  Y02P10/234

Abstract: This invention describes a hydrometallurgical process for the recovery and separation of valuable elements, in particular gold and silver, from a feed material comprising a refractory, intractable or otherwise poorly responding to conventional treatment routes ores, concentrates and other materials. In particular, the process is a process integrated into one or more existing value element extraction processes.

Abstract translation: 本发明描述了一种用于从包括耐火材料，难处理或以其他对常规处理途径矿石，浓缩物和其它材料不良响应的进料中回收和分离有价值元素，特别是金和银的湿法冶金方法。 特别地，该过程是集成到一个或多个现有价值元素提取过程中的过程。

公开(公告)号：US09347113B2

公开(公告)日：2016-05-24

申请号：US13976576

申请日：2012-12-03

Applicant: STILLWATER MINING COMPANY

Inventor： Dave Shuck ,  Jerry Kolstad ,  Mark Rapkoch ,  Grenvil Marquis Dunn

IPC: C22B11/00 ,  C22B3/00 ,  C22B3/44 ,  C22B3/42 ,  C22B3/14 ,  C22B3/12

CPC classification number: C22B11/04 ,  C22B3/0002 ,  C22B3/10 ,  C22B3/12 ,  C22B3/165 ,  C22B3/22 ,  C22B3/42 ,  C22B3/44 ,  C22B11/06 ,  Y02P10/234

Abstract: Discloses a hydrometallurgical process and system for the recovery of precious metals; specifically palladium, rhodium, and platinum metals, at high purity and with limited waste and environmental fouling.

Abstract translation: 公开了一种用于回收贵金属的湿法冶金工艺和系统; 特别是钯，铑和铂金属，具有高纯度和有限的废物和环境污染。

公开(公告)号：US09115419B2

公开(公告)日：2015-08-25

申请号：US13858166

申请日：2013-04-08

Applicant: Process Research Ortech Inc.

Inventor： Vaikuntam I. Lakshmanan ,  Ramamritham Sridhar ,  M. A. Halim

IPC: C22B59/00 ,  C22B3/08 ,  C22B3/10

CPC classification number: C22B59/00 ,  C22B3/08 ,  C22B3/10 ,  Y02P10/234

Abstract: A process for the extraction of rare earth elements, including yttrium, from a rare earth element-bearing ore or concentrate, comprising the steps of leaching the rare earth element-bearing ore or concentrate with a lixiviant of hydrochloric acid and magnesium chloride at atmospheric pressure at a temperature of from 90° C. to the boiling point of the solution and at an Eh of at least 200 mV. After a liquid/solids separation step, the solution obtained is subjected to steps for removal of iron and for recovery of rare earth elements. Alternatively, rare earth element-bearing ore or concentrate may be leached with sulphuric acid and liquid obtained subjected to extraction of iron and other impurities. Raffinate obtained may be treated with oxalic acid, the precipitate dissolved in hydrochloric acid and subjected to solvent extraction for rare earth elements or the raffinate may be subjected to solvent extraction for removal of rare earth elements and then stripped with hydrochloric acid.

Abstract translation: 一种从含有稀土元素的矿石或浓缩物中提取稀土元素（包括钇）的方法，包括以下步骤：在大气压力下将含稀土元素的矿石或浓缩物与盐酸和氯化镁的浸液浸出 在90℃至该溶液的沸点和至少200mV的Eh下进行。 在液/固分离步骤之后，将所得溶液进行除铁和用于回收稀土元素的步骤。 或者，稀土元素矿石或浓缩物可以用硫酸浸出，所得液体经铁提取和其他杂质。 得到的残液可用草酸处理，沉淀溶解于盐酸中，进行稀土元素的溶剂萃取，或萃取液进行溶剂萃取除去稀土元素，然后用盐酸汽提。