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WO2013067577A1 - Procédé de traitement d'un matériau minéralisé - Google Patents

Procédé de traitement d'un matériau minéralisé Download PDF

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Publication number
WO2013067577A1
WO2013067577A1 PCT/AU2012/001363 AU2012001363W WO2013067577A1 WO 2013067577 A1 WO2013067577 A1 WO 2013067577A1 AU 2012001363 W AU2012001363 W AU 2012001363W WO 2013067577 A1 WO2013067577 A1 WO 2013067577A1
Authority
WO
WIPO (PCT)
Prior art keywords
ore material
treating
ore
electromagnetic energy
material according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/AU2012/001363
Other languages
English (en)
Inventor
Georgios Dimitrakis
Samuel Kingman
Christopher Dodds
Erin HAMILTON
Gary Davis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technological Resources Pty Ltd
Original Assignee
Technological Resources Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=48288366&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2013067577(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from AU2011904632A external-priority patent/AU2011904632A0/en
Application filed by Technological Resources Pty Ltd filed Critical Technological Resources Pty Ltd
Priority to CA2854865A priority Critical patent/CA2854865A1/fr
Priority to BR112014011194A priority patent/BR112014011194A2/pt
Priority to AU2012334803A priority patent/AU2012334803A1/en
Priority to RU2014120230/02A priority patent/RU2014120230A/ru
Priority to US14/357,123 priority patent/US20140322106A1/en
Publication of WO2013067577A1 publication Critical patent/WO2013067577A1/fr
Anticipated expiration legal-status Critical
Priority to ZA2014/04089A priority patent/ZA201404089B/en
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B60/00—Obtaining metals of atomic number 87 or higher, i.e. radioactive metals
    • C22B60/02—Obtaining thorium, uranium, or other actinides
    • C22B60/0204—Obtaining thorium, uranium, or other actinides obtaining uranium
    • C22B60/0217—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes
    • C22B60/0221—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching
    • C22B60/0226—Obtaining thorium, uranium, or other actinides obtaining uranium by wet processes by leaching using acidic solutions or liquors
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • C22B15/0067—Leaching or slurrying with acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0063—Hydrometallurgy
    • C22B15/0065—Leaching or slurrying
    • C22B15/0067—Leaching or slurrying with acids or salts thereof
    • C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0407—Leaching processes
    • C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B23/00—Obtaining nickel or cobalt
    • C22B23/04—Obtaining nickel or cobalt by wet processes
    • C22B23/0407—Leaching processes
    • C22B23/0415—Leaching processes with acids or salt solutions except ammonium salts solutions
    • C22B23/043—Sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
    • C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
    • C22B4/04—Heavy metals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the present invention relates to a method for treating ore material with electromagnetic energy to form micro-channels.
  • microwave heating has been used for the pre-treatment of ore materials in order to increase valuable mineral recovery.
  • Microwave heating offers a number of advantages over conventional heating such as, rapid heating, material selective heating and volumetric heating.
  • the problem with the use of microwave energy in mineral processing arises from the fact that uncontrolled levels of microwave exposure causes unwanted changes in the minerals and undesirable changes in the ore materials themselves.
  • WO 03/102250 proposes the use of pulsed microwave energy treatment of ores to facilitate the subsequent processing of ores based on the differences in thermal expansion of the minerals within the ore, to form micro-cracks throughout the ore structure.
  • the micro-cracks tend to weaken the ore materials. Weakening of the ore materials can lead to unstable heaps for heap leaching. Structurally weak ore materials are also problematic with respect to heap leaching, as the potential for the ore material to break into smaller particles exists. These small particles affect the percolation of the leach solution through the heap, as they can collect in the spaces between the larger particles, preventing the flow of leach solution through the entire heap.
  • microwave energy is understood herein to mean electromagnetic radiation that has frequencies in the range of 100-10,000 MHz.
  • radio frequency energy is understood herein to mean electromagnetic radiation that has frequencies in the range of 1 -100 MHz.
  • a method for treating an ore material with electromagnetic energy comprising the steps of: agglomerating the ore material ; irradiating the ore material with electromagnetic energy; thereby heating the liquid in the ore material; vapourising at least a portion of the liquid in the ore material; forming micro-channels in the ore material; and acid leaching the ore material.
  • irradiation of the ore material results in localised heating of the liquid present within the ore material, forming micro-channels. Without being limited by theory, it is believed that the radiation heats the liquid volumetrically forming vapour. The vapour forces its way to the surface of the ore material resulting in the formation of the micro-channels.
  • the micro-channels assist the percolation of the leach solution through the ore material and increases leaching rates and recoveries.
  • electromagnetic energy is understood to mean electromagnetic radiation that has frequencies in the range of 1 -10,000 MHz, being either microwave energy or radio frequency energy.
  • radio frequency energy may provide increased heating efficiency compared to microwave energy due to higher electrical conductivity in the water at lower frequencies.
  • ore material may encompass unprocessed or processed ores including crushed ore particles, cakes of crushed ore particles or agglomerated ore particles.
  • the method of the present invention is particularly suited to multiphase ore material wherein the phases have different dielectric properties and wherein the bulk of the ore material has low dielectric property.
  • the ore material contains liquid.
  • the liquid contains ions.
  • the liquid content within the ore material is about 5 w/w% to about 30 w/w%.
  • the method comprises the further step of: crushing the ore material to provide ore particles, prior to the step of: agglomerating the ore material.
  • the step of crushing the ore material may be performed using tools known in the art including ball mills, crushers, hammer mills.
  • the ore particles Preferably, have an average diameter of less than 5 cm.
  • the step of agglomerating the ore material is carried out in a solution of acid and water.
  • the method comprises the further step of: agglomerating the ore material in a solution of acid and water; prior to or after the step of; irradiating the ore material with electromagnetic energy.
  • step of agglomerating the ore material in the solution of acid and water causes the particles to bind together to form larger particles termed herein, agglomerates.
  • agglomerating the ore material in the solution of acid and water results in retention of some liquid within the agglomerates.
  • the liquid content in the agglomerates is +/- 10% w/w.
  • both heap stacking and leaching benefit from the structural integrity of the ore materials with micro-channels remaining substantially unaltered.
  • the Applicant envisages that, advantageously, this can result in agglomerates of increased strength and integrity, enabling heaps to be stacked higher and with greater stability than under conventional practise.
  • the acid is provided in the form of sulphuric acid.
  • the solution of acid and water used in the step of; agglomerating the ore particles in a solution of acid and water contains up to 50 kg of sulphuric acid per dry tonne of ore particles.
  • the amount of sulphuric acid in the solution of acid and water may vary depending on the actual mineral composition of the ore particles, the moisture content of the ore particles and other factors.
  • the ore particles preferably are agglomerated for an amount of time that may vary from an hour to several days, depending on the extent of agglomeration required. It will be appreciated that the amount of time required to achieve suitable agglomerates will be dependent on the ore composition, agglomerate size, liquid content within the agglomerates and other factors.
  • the method comprises the further step of: curing the ore material ; after the step of: agglomerating the ore particles in a solution of acid and water; or during the step of: irradiating the ore material with electromagnetic energy.
  • the curing step gives the agglomerates strength even with the included micro-channels.
  • the heating of the agglomerates during microwave treatment and consequent drying effectively result in a degree of curing of the agglomerates.
  • the strengthening of the agglomerates through curing enables higher heap stacking and compensates for any loss in strength due to the micro- channels which are formed.
  • the ore material that includes the agglomerates formed in the step of: agglomerating the ore particles in a solution of acid and water are fed as a bulk flow of material down a pipe to a troughed or flat conveyor to an electromagnetic treatment assembly to be irradiated with electromagnetic energy.
  • the electromagnetic treatment assembly is any assembly that can support a homogenous electric field distribution that is sufficiently high to heat the liquid content contained within a sufficient portion of the ore material.
  • a sufficient portion in this context refers to >90 % of the ore material.
  • the assembly will comprise an electromagnetic generating source, such as a microwave generator.
  • the step of: irradiating the ore material with electromagnetic energy comprises the movement of the ore material through an applicator or cavity.
  • the step of: irradiating the ore material with electromagnetic energy comprises exposing the ore material to the electromagnetic energy in batch mode.
  • the movement of the agglomerates past an electromagnetic energy zone as a bed on a conveyor or a moving bed of agglomerates in a tube, pipe or other enclosed structure facilitates the homogenous irradiation of the agglomerates with electromagnetic energy.
  • the agglomerates pass the electromagnetic energy zone on a conveyor as a bed of agglomerates.
  • the step of: irradiating the ore material with electromagnetic energy comprises exposure with a continuous or pulsed source of radio frequency energy.
  • Irradiating the ore material preferably comprises creating a power density ranging between 1 x 1 0 5 to 1 x 1 0 12 w/m 3 in the liquid phase of the ore material. It will be appreciated that the power density employed will be dependent on at least the form of the ore material, liquid content in the ore material, the size of the ore material, the mass in any cavities of the ore material, the dielectric properties or conductivity of the liquid, the frequency of the applied electromagnetic energy radiation and the duration of electromagnetic energy irradiation.
  • the step of; irradiating the ore material with electromagnetic energy includes controlling the electric field strength of the electromagnetic energy and/or the duration of electromagnetic energy irradiation to ensure the ore material is not overly exposed to electromagnetic energy, to minimise undesirable heating of the agglomerates.
  • Undesirable heating of the agglomerates may result in, the formation of micro-cracks that will weaken the agglomerates and/or sintering of the agglomerates that will alter the chemical properties of the minerals present with the agglomerates.
  • the ore material is irradiated with continuous source of electromagnetic energy for less than about 10 seconds.
  • the average diameter of the ore material is substantially unaltered by the step of; irradiating the ore material with electromagnetic energy.
  • the step of: acid leaching the ore material is preferably conducted using at least one of the following, sulphuric acid (H 2 S0 4 ) or ferric acid (H 2 Fe0 4 ) or a combination of both.
  • the step of; acid leaching the ore material is followed by a further step of; recovering metal values from the pregnant liquor solution from the step of acid leaching the ore material with electromagnetic energy.
  • an ore material comprising micro-channels, wherein the micro-channels are formed by the preferential heating of the liquid in the ore material.
  • the ore material comprising micro-channels is a copper, nickel or uranium-containing ore.
  • the ore materials comprising micro-channels may be made from a starting material that includes the ore, ore particles, agglomerates formed from ore particles or any other form of ore material that has a liquid content.
  • Figure 1 is a schematic flow sheet of a method for treating an ore material with electromagnetic energy, in accordance with the first embodiment of the present invention.
  • Figure 1 shows a schematic flow sheet of a method for treating an ore material 10 with electromagnetic energy in accordance with the first embodiment of the present invention, comprising the steps of: crushing 14 of the ore 12; agglomerating 16 the crushed ore particles; irradiating 18 the agglomerates with electromagnetic energy; acid leaching 20 the agglomerates irradiated with electromagnetic energy; and recovering 22 the metal values.
  • a uranium ore 12 is supplied to a primary crusher and is crushed 14 to a particle size less than 5 cm.
  • an agglomeration step 16 the crushed uranium ore particles are mixed with a solution of sulphuric acid and water to agglomerate the particles, as known by those skilled in the art.
  • the agglomerates after leaching have a liquid content in the range of about 5 w/w% to about 30 w/w% and more specifically a liquid content of +/- 10% w/w.
  • the agglomerates are fed as a bed to an electromagnetic energy treatment assembly to be irradiated with electromagnetic energy 18, by way of a conveyor or chute under vertical flow 24.
  • the electromagnetic energy treatment assembly may be provided in the form of a microwave treatment assembly.
  • the microwave treatment assembly includes a source in the form of a microwave generator that generates microwaves.
  • the bed of agglomerates on the moving conveyor pass a microwave energy zone, which is created by the microwave generator.
  • the moving agglomerates are exposed to a continuous source of microwave energy with electric field strength sufficient enough to create a power density ranging between 1 x 1 0 5 to 1 x 1 0 12 w/m 3 in the liquid phase of the ore material for 10s or less.
  • the operating conditions, such as the electric field and the duration of microwave energy exposure are selected to ensure that the microwave treatment causes only localised heating of the liquid content within the agglomerates.
  • the microwave energy exposure cures the agglomerates and heats the liquid in the agglomerates, forming vapour.
  • the vapour forces its way to the surface of the agglomerates resulting in the formation of micro-channels in the agglomerates.
  • the agglomerates irradiated with microwave energy are stacked in heaps with heights ranging between 20 m to about 50 m for subsequent leaching 20.
  • the leach solution which is a sulphuric acid solution is applied to the top or upper surface of the heaps and allowed to percolate through the heap.
  • the micro-channels formed during the irradiation step assist the percolation of the leach solution through the agglomerates, thereby to increase leaching rates and recoveries.
  • the percolated solution is collected at the bottom of the heaps as the pregnant leach solution (PLS).
  • the PLS may be recycled to the heap, collected for the recovery of metal values or a combination of both.
  • For the recovery 22 of metal values standard processes that are known in the art are employed.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

La présente invention concerne un procédé de traitement d'un matériau minéralisé avec une énergie électromagnétique, le procédé comprenant au moins les étapes consistant à : agglomérer le matériau minéralisé ; irradier le matériau minéralisé avec de l'énergie électromagnétique ; chauffer ensuite le liquide présent dans le matériau minéralisé ; vaporiser au moins une partie du liquide présent dans le matériau minéralisé ; former des microcanaux dans le matériau minéralisé, et lixivier à l'acide le matériau minéralisé.
PCT/AU2012/001363 2011-11-08 2012-11-08 Procédé de traitement d'un matériau minéralisé Ceased WO2013067577A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA2854865A CA2854865A1 (fr) 2011-11-08 2012-11-08 Procede de traitement d'un materiau mineralise
BR112014011194A BR112014011194A2 (pt) 2011-11-08 2012-11-08 método para o tratamento do material de minério
AU2012334803A AU2012334803A1 (en) 2011-11-08 2012-11-08 A method for the treatment of ore material
RU2014120230/02A RU2014120230A (ru) 2011-11-08 2012-11-08 Способ обработки рудного материала
US14/357,123 US20140322106A1 (en) 2011-11-08 2012-11-08 Method for the treatment of ore material
ZA2014/04089A ZA201404089B (en) 2011-11-08 2014-06-05 A method for the treatment of ore material

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2011904632 2011-11-08
AU2011904632A AU2011904632A0 (en) 2011-11-08 A Method for the Treatment of Ore Material

Publications (1)

Publication Number Publication Date
WO2013067577A1 true WO2013067577A1 (fr) 2013-05-16

Family

ID=48288366

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2012/001363 Ceased WO2013067577A1 (fr) 2011-11-08 2012-11-08 Procédé de traitement d'un matériau minéralisé

Country Status (9)

Country Link
US (1) US20140322106A1 (fr)
AU (1) AU2012334803A1 (fr)
BR (1) BR112014011194A2 (fr)
CA (1) CA2854865A1 (fr)
CL (1) CL2014001213A1 (fr)
PE (1) PE20142059A1 (fr)
RU (1) RU2014120230A (fr)
WO (1) WO2013067577A1 (fr)
ZA (1) ZA201404089B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081372A3 (fr) * 2013-12-02 2015-10-15 Technological Resources Pty. Limited Lixiviation en tas
WO2020041914A1 (fr) * 2018-08-28 2020-03-05 Platinum Group Chile Spa Système et procédé pour solubiliser dans un milieu aqueux des éléments contenus dans un concentré minéral du type sulfure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111394574A (zh) * 2012-11-15 2020-07-10 技术资源有限公司 堆浸
DE102015116476A1 (de) * 2015-09-29 2017-04-13 Outotec (Finland) Oy Verfahren und Anlage zur Herstellung von Uran oder einem Seltenen-Erden-Element

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992018249A1 (fr) * 1991-04-10 1992-10-29 The Broken Hill Proprietary Company Limited Recuperation d'especes de valeur dans un minerai
WO2003102250A1 (fr) * 2002-05-31 2003-12-11 Technological Resources Pty Ltd Traitement de minerais par micro-ondes
WO2008147420A1 (fr) * 2006-06-14 2008-12-04 Clifton Mining Company (Utah Corporation) Extraction de métaux à partir de divers minéraux de la classe des chalcogénures par interaction avec de l'énergie micro-onde
CA2277383C (fr) * 1999-07-15 2009-11-24 Roland R.H. Ridler Procedes metallurgiques utilisant les chocs thermiques aux micro-ondes
US20100263482A1 (en) * 2009-04-15 2010-10-21 Phoenix Environmental Reclamation Separator and crusher of minerals with microwave energy and method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311520A (en) * 1980-02-28 1982-01-19 Cato Research Corporation Process for the recovery of nickel, cobalt and manganese from their oxides and silicates
US5091160A (en) * 1990-11-05 1992-02-25 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Energy Use of microwave radiation to eliminate foam in ore leaching
FR2703071B1 (fr) * 1993-03-26 1996-01-05 Rmg Services Pty Ltd Procédé de lixiviation de minerais contenant du nickel, du cobalt et du manganèse.
GB0823091D0 (en) * 2008-12-18 2009-01-28 Univ Nottingham Exfoliating vermiculite and other minerals

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992018249A1 (fr) * 1991-04-10 1992-10-29 The Broken Hill Proprietary Company Limited Recuperation d'especes de valeur dans un minerai
CA2277383C (fr) * 1999-07-15 2009-11-24 Roland R.H. Ridler Procedes metallurgiques utilisant les chocs thermiques aux micro-ondes
WO2003102250A1 (fr) * 2002-05-31 2003-12-11 Technological Resources Pty Ltd Traitement de minerais par micro-ondes
WO2008147420A1 (fr) * 2006-06-14 2008-12-04 Clifton Mining Company (Utah Corporation) Extraction de métaux à partir de divers minéraux de la classe des chalcogénures par interaction avec de l'énergie micro-onde
US20100263482A1 (en) * 2009-04-15 2010-10-21 Phoenix Environmental Reclamation Separator and crusher of minerals with microwave energy and method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015081372A3 (fr) * 2013-12-02 2015-10-15 Technological Resources Pty. Limited Lixiviation en tas
WO2020041914A1 (fr) * 2018-08-28 2020-03-05 Platinum Group Chile Spa Système et procédé pour solubiliser dans un milieu aqueux des éléments contenus dans un concentré minéral du type sulfure
US12098443B2 (en) 2018-08-28 2024-09-24 Platinum Group Chile Spa System and method for solubilising in an aqueous medium elements contained in a sulfide ore concentrate

Also Published As

Publication number Publication date
AU2012334803A1 (en) 2014-05-29
RU2014120230A (ru) 2015-12-20
CL2014001213A1 (es) 2014-10-10
CA2854865A1 (fr) 2013-05-16
US20140322106A1 (en) 2014-10-30
PE20142059A1 (es) 2014-12-18
BR112014011194A2 (pt) 2017-04-25
ZA201404089B (en) 2015-09-30

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