WO2013128254A1 - Système de récupération et de traitement d'or - Google Patents

Système de récupération et de traitement d'or Download PDF

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Publication number
WO2013128254A1
WO2013128254A1 PCT/IB2012/056947 IB2012056947W WO2013128254A1 WO 2013128254 A1 WO2013128254 A1 WO 2013128254A1 IB 2012056947 W IB2012056947 W IB 2012056947W WO 2013128254 A1 WO2013128254 A1 WO 2013128254A1
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WO
WIPO (PCT)
Prior art keywords
concentrator
water
gold
receives
processing system
Prior art date
Application number
PCT/IB2012/056947
Other languages
English (en)
Spanish (es)
Inventor
Jaime Enrique MICHEA PONCE
Original Assignee
Universidad Católica Del Norte
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
Application filed by Universidad Católica Del Norte filed Critical Universidad Católica Del Norte
Publication of WO2013128254A1 publication Critical patent/WO2013128254A1/fr

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • 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
    • C22B11/00—Obtaining noble 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 the gold mining and processing industry.
  • the present invention consists of a gold recovery and processing system that has a compact, highly efficient design and does not use chemical reagents.
  • Gold recovery processes can be carried out using gravitational concentration equipment, using centrifugal concentrators such as the Knelson, Falcon or JIG concentrator. These concentrators provide several advantages that allow the recovery of ore efficiently.
  • centrifugal concentrators such as the Knelson, Falcon or JIG concentrator.
  • These concentrators provide several advantages that allow the recovery of ore efficiently.
  • the processes are complex and use a large number of equipment and process steps. Which leads to considerable production and maintenance costs.
  • Patent document number WO 2009/039559 A1 discloses a modular mineral processing system for mineral concentrates that can be used in underground units or tunnels of mines, in order to of concentrating the minerals before they need to be brought to the surface.
  • Said system comprises a plurality of separate modules constructed to be arranged in series so as to form a feed processing system for the concentration of a desired material in the ore, wherein the modules are individually transportable to a processing site to be operatively united and form the modular ore processing system.
  • the system described in the previous document corresponds to a fairly complex and not very compact system, where the problem associated with the complexity of the system is solved through a modular design that can be assembled on site.
  • the complexity of the system, and given the large number of elements that it comprises, leads to high energy consumption, which therefore results in high operating and maintenance costs.
  • the system described in this document uses flotation, among other processes, so it also requires the use of chemical elements that pollute the environment.
  • a gold recovery and processing system is presented, with pressurized gravimetric concentration of continuous pulsation and tilt casting furnace, which allows gold to be processed without the use of chemical reagents.
  • This system uses only water in a very low quantity, since it is constantly recycled during the process of obtaining gold.
  • the system is subdivided into four stages, where the first stage corresponds to grinding, comprising a crusher and an impact mill, both joined as a "duplex" system, sharing a single drive means.
  • the second stage corresponds to the pre-concentration, which comprises a magnetic separator that allows the material to be magnetically separated.
  • the third stage corresponds to the concentration, wherein said material from the magnetic separator is mixed with water in a mixer to form a homogeneous pulp, this being driven to concentrators to allow obtaining a mineral-rich concentrate.
  • the system comprises a waste and water separator, which receives the tails from the concentrators to separate them into waste and water, where the waste leaves the system and the water enters a centrifugal concentrator that allows recovery the fine gold particles present in the water, so that said fine particles finally bind with the result of concentrator concentrates.
  • the fourth stage corresponds to the smelting, in which the concentrates of the concentrators and the centrifugal concentrator are discharged, and loaded into a tilting smelting furnace with ingot mold, with which once the smelting is finished the ingot doré is delivered .
  • recycled water comes out, which is clarified and filtered to be reused in the mixer.
  • the system has the comparative advantage that both the crusher and the impact mill use the same drive means for both processes, achieving a decrease in energy consumption and time, since it prevents, for example, the transportation of the grinding.
  • the water used to form the homogeneous pulp is processed after its passage through the centrifugal concentrator so that it is again sent to said centrifugal concentrator.
  • an important advantage is that the system does not leave residues, since both the sterile material and the residues that leave the system have added value, being perfectly marketable.
  • the present invention throughout its process does not use any chemical reagent, but only water, where the latter is also recycled during the process.
  • the present invention maximizes energy efficiency through the use of a single drive means and a transmission system that moves all System Components. Consequently, the above characteristics imply that not only the operating and maintenance costs are lowered considerably, but also an efficient and environmentally friendly solution is provided, where the system can achieve an efficiency in recovering gold from Up to 90%.
  • Figure 1 shows a diagram of the gold recovery and processing system according to a preferred configuration of the present invention.
  • the present invention consists of a gold recovery and processing system (1 00), which has a compact and efficient design allowing a decrease in time and energy consumption of the plant.
  • Said system comprises:
  • a magnetic separator (103), which magnetically separates sterile material and pre-concentrated material;
  • At least one concentrator which receives the pulp and processes it to obtain a concentrate rich in mineral
  • a waste separator (107) that receives queues from at least one concentrator, allowing waste and water to be separated;
  • centrifugal concentrator that receives water from the waste separator (107), allowing fine particles of gold present in the water to be recovered, and joining said recovered particles to the rich concentrate from at least one concentrator;
  • the system comprises a first concentrator (1 05) and a second concentrator (106), arranged in series, whose mineral-rich concentrate is joined to be sent to the smelting furnace (109).
  • the concentrator (1 05, 106) may be selected from a group comprising: Dember, Valtar, Yuba, Geko or other concentrators.
  • a preferred configuration of the invention considers the use of pulse concentrators J IG with continuous and pressurized vibration.
  • the magnetic separator is preferably permanent magnets.
  • the crusher (101) uses a differentiated shock absorber, causing the rock to disintegrate avoiding excessive grinding.
  • This allows to obtain a more efficient and faster grinding, achieving the elimination for example of "laminar gold” or gold in "flakes” (which is normally produced with the use of other mills, such as: mill, balls, bars, de cones, mortars, rammers, etc.).
  • it is important to keep in mind that the presence of "laminar” gold prevents its recovery, managing to escape from other processes.
  • the system comprises a water filtration and clarification plant (1 1 0), connected to an outlet of the centrifugal concentrator, such that it uses the water coming from said centrifugal concentrator (1 08) and the It processes in such a way that it leaves it in a position to be reused in the mixing tank (104).
  • more than one system can be joined, working in parallel, in such a way to form a "productive module" that can reach 200 tons per day, multiplying production and reducing costs considerably, Because this configuration allows that in case one of the systems is paralyzed (either by maintenance or some failure), the metal production does not stop.
  • the raw material enters the crusher (101) and the high impact mill (1 02) in such a way that the result of high impact grinding produces a final rock size of about 2 mm.
  • the pre-concentrated material from the high impact mill (1 02) falls by gravity to the mixing tank (104), where said material is mixed with water forming a homogeneous pulp of material with water, and where said pulp is sent through a first pump (1 13) to the first concentrator (105).
  • the first concentrator (1 05) the material containing high concentration of ore is separated by specific weight, being stored in a place of concentrate within the first concentrator. Material containing a lower concentration passes to the second concentrator (1 06) for the recovery of additional valuable material.
  • the pre-concentrated material enters the concentrators (1 05, 106) J IG at high pressure, where it is received by a pulsating bed, which drives fine material into a pressurized atmosphere, avoiding the loss of laminar gold.
  • the pulp of light material, or glue which comes as waste from the second concentrator (106)
  • the centrifugal concentrator (108) manages to increase the specific gravity of the fine mineral particles, allowing the separation of the fine particles from the water.
  • the concentrates of both concentrators (1 05, 106) are combined with the result of the centrifugal concentrator, which is rich in ore, to pass to the smelter and finally obtain the Doré.
  • recycled water comes out, which is sent through a second pump (1 14) to the water filtration and clarification plant (1 0 0), where the water is processed in such a way to leave it suitable to be re-entered into the system in the mixing tank (1 04).
  • the volume of the material to be processed is drastically reduced, with the consequent cost savings involved.
  • the pressurized gravimetric concentration of pulsation with continuous vibration achieved through the J IG concentrators, optimizes the concentration in such a way that it is not necessary to use any other process for the recovery of valuable material, but after the exit of the concentrators the material can go directly to the foundry.
  • the invention comprises a single drive means and a mechanical transmission system that drives all the components of the system using a single drive means, such that energy efficiency is maximized while operating costs are reduced and maintenance, allowing also to replace the use of electric generation and electric motors.
  • the system comprises a single drive means, preferably a stationary diesel engine, to which a vibration dissipator and torque strokes are attached to its main axis, and which includes 4 double pulleys, allowing the crusher to be operated ( 1 01), the high impact mill (102) and the magnetic separator (1 03), in turn that additionally drives 2 transmission shafts.
  • the first transmission shaft allows the mixing tank (1 04) and the second pump (1 14) to be operated, while the second transmission shaft allows the concentrators (105, 106), the waste separator (1 07), concentrator to be operated centrifugal (1 08), and the first pump (1 1 3).
  • the set of different movements and forces works smoothly and harmoniously, thanks to the dissipation of vibrations, strategically located as a whole.
  • the present invention provides a highly efficient solution that minimizes the consumption of inputs such as water, fuel and electrical energy, thanks to the configuration of the system elements, and the system of drive and transmission previously described.
  • the following comparative tables show the levels of consumption of the mentioned variables to produce a gram of gold, with the present invention and a conventional state-of-the-art plant.

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

Abstract

L'invention concerne un système de récupération et de traitement d'or (100), lequel présente une conception compacte et efficace permettant une diminution en temps et consommation énergétique de l'installation, et qui fournit une solution écologique en évitant l'utilisation de réactifs chimiques, ledit système comprenant: un concasseur (101) et un moulin à choc important (102), réunis de telle sorte que les deux partagent un même moyen d'actionnement; un séparateur magnétique (103) à aimants permanents, qui sépare magnétiquement la matière stérile et la matière préconcentrée; un réservoir mélangeur (104), la matière préconcentrée étant mélangée à de l'eau pour former une pulpe; au moins un concentrateur, qui reçoit la pulpe et la traite pour obtenir un concentré riche en minerai; un séparateur de résidus (107) qui reçoit des produits de queue provenant d'au moins un concentrateur, permettant de séparer les résidus et l'eau; un concentrateur centrifuge (108) qui reçoit l'eau provenant du séparateur de résidus (107), permettant de récupérer les particules fines d'or présentes dans l'eau, et associant lesdites particules au concentré riche provenant d'au moins un concentrateur; un four de fusion basculant (109) qui reçoit et traite le concentré riche provenant d'au moins un concentrateur et les particules fines du concentrateur centrifuge (108); l'eau de recyclage sortant au niveau d'une autre sortie du concentrateur centrifuge (108), laquelle eau est traitée par une installation de filtration (110) et clarification d'eaux, pour être réutilisée dans le réservoir mélangeur (104).
PCT/IB2012/056947 2012-02-29 2012-12-04 Système de récupération et de traitement d'or WO2013128254A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2012000542A CL2012000542A1 (es) 2012-02-29 2012-02-29 Sistema de recuperacion y procesamiento de oro que comprende equipos de molienda, separacion magnetica, formacion de pulpa, concentracion y fundicion incluyendo mecanismos intermedios de raciclado y reutilizacion de los residuos, generando un proceso mas eficiente y menos contaminante.
CL542-2012 2012-02-29

Publications (1)

Publication Number Publication Date
WO2013128254A1 true WO2013128254A1 (fr) 2013-09-06

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PCT/IB2012/056947 WO2013128254A1 (fr) 2012-02-29 2012-12-04 Système de récupération et de traitement d'or

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CL (1) CL2012000542A1 (fr)
WO (1) WO2013128254A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111871596A (zh) * 2020-07-22 2020-11-03 山东水天缘环境科技有限公司 一种处理金矿浮选尾矿泥的系统以及利用其生产建筑用原料的加工工艺
RU2763829C1 (ru) * 2021-05-31 2022-01-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Забайкальский государственный университет" (ФГБОУ ВО "ЗабГУ") Линия переработки золотосодержащего сырья техногенных месторождений
IT202100028175A1 (it) * 2021-11-13 2022-02-13 Daniel Bellofatto Green gold concept procedimento di estrazione dell’oro senza l’uso di prodotti chimici

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512879A (en) * 1983-07-20 1985-04-23 Battelle Development Corp. Process for producing a metalliferous concentrate from a particulate feed material
WO1995026232A1 (fr) * 1994-03-25 1995-10-05 Alexander Hamilton Gray Separateur pour la separation de matieres particulaires contenues dans une boue
WO2009039559A1 (fr) * 2007-09-26 2009-04-02 Gekko Systems Pty Ltd Système de traitement modulaire de minerai
JP2010131473A (ja) * 2008-12-02 2010-06-17 Masuko Sangyo Co Ltd 摩砕機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4512879A (en) * 1983-07-20 1985-04-23 Battelle Development Corp. Process for producing a metalliferous concentrate from a particulate feed material
WO1995026232A1 (fr) * 1994-03-25 1995-10-05 Alexander Hamilton Gray Separateur pour la separation de matieres particulaires contenues dans une boue
WO2009039559A1 (fr) * 2007-09-26 2009-04-02 Gekko Systems Pty Ltd Système de traitement modulaire de minerai
JP2010131473A (ja) * 2008-12-02 2010-06-17 Masuko Sangyo Co Ltd 摩砕機

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111871596A (zh) * 2020-07-22 2020-11-03 山东水天缘环境科技有限公司 一种处理金矿浮选尾矿泥的系统以及利用其生产建筑用原料的加工工艺
RU2763829C1 (ru) * 2021-05-31 2022-01-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Забайкальский государственный университет" (ФГБОУ ВО "ЗабГУ") Линия переработки золотосодержащего сырья техногенных месторождений
IT202100028175A1 (it) * 2021-11-13 2022-02-13 Daniel Bellofatto Green gold concept procedimento di estrazione dell’oro senza l’uso di prodotti chimici
WO2023084471A1 (fr) * 2021-11-13 2023-05-19 Bellofatto Daniel Procédé et système d'extraction d'or sans produits chimiques

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Publication number Publication date
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