Heap leaching
    2.
    发明专利

    公开(公告)号:AU2003229403C1

    公开(公告)日:2012-12-20

    申请号:AU2003229403

    申请日:2003-05-30

    Abstract: A method of leaching a metal value from a heap of a metal-containing ore and a heap leaching operation are disclosed. The method includes establishing a downward flow of a leach liquor through a section of the heap by supplying the leach liquor onto a top surface of the section and allowing the leach liquor (containing metal values in solution) to drain from a lower part of the section. The method is characterised by supplying the leach liquor onto the top surface of the section at a flow rate that is sufficient so that the downwardly flowing leach liquor saturates the section of the heap.

    MICROWAVE TREATMENT OF ORES
    4.
    发明专利

    公开(公告)号:CA2487743C

    公开(公告)日:2011-05-24

    申请号:CA2487743

    申请日:2003-05-30

    Abstract: A method of treating ore particles to facilitate subsequent processing of the ore particles to recover valuable components from the ore is disclosed. The method includes exposing the ore particles to microwave energy and causing structural alteration of the ore particles. In one embodiment structural alteration is achieved without significantly altering the mineralogy, ie composition, of the ore. In another embodiment structural alteration is achieved with minimal change to the sizes of the ore particles. In another embodiment the method includes exposing the ore particles to short duration, high energy pulses of microwave energy.

    RECOVERY OF COPPER FROM CHALCOPYRITE

    公开(公告)号:CA2465509A1

    公开(公告)日:2003-05-08

    申请号:CA2465509

    申请日:2002-10-29

    Abstract: A process for recovering copper from chalcopyrite is disclosed. The process includes oxidising sulphur in chalcopyrite with a solution under predetermin ed contact conditions and thereby releasing at least part of the copper in the chalcopyrite into the solution as copper ions. The process includes a subsequent step of reducing sulphur in a solid product from step (a) to a minus two, ie. sulphide, valence state with a solution under predetermined contact conditions. The process further includes a subsequent step of oxidising sulphur in a solid product from step (b) with a solution under predetermined contact conditions and thereby releasing at least part of the remaining copper in the solid product into the solution as copper ions. The process further includes recovering copper from one or more of the solutions from steps (a) and (c).

    LIXIVIACION EN PILAS
    7.
    发明专利

    公开(公告)号:PE20131489A1

    公开(公告)日:2013-12-25

    申请号:PE2013000373

    申请日:2011-09-05

    Abstract: REFIERE A UNA PILA DE MATERIAL QUE VA A SER LIXIVIADO PARA RECUPERAR UN METAL VALIOSO DEL MATERIAL Y UN METODO PARA LA CONSTRUCCION DE LA PILA. LA PILA COMPRENDE LADOS Y UNA PARTE SUPERIOR Y UN SISTEMA PARA CONTROLAR EL FLUJO DE AIRE HACIA EL INTERIOR DE LA PILA. EL SISTEMA DE CONTROL DE FLUJO DE AIRE DISPONE UNA COMBINACION DE UNA BARRERA IMPERMEABLE AL AIRE EN MATERIAL POLIMERICO, UNA CAPA DE UN MATERIAL A PRUEBA DE PUNCION Y PANELES PREFABRICADOS IMPERMEABLES AL AIRE CONECTADOS ENTRE SI. EL METODO DE CONSTRUCCION DE LA PILA QUE COMPRENDE LOS PASOS; FORMAR LA PILA CON LADOS, TUBOS DE AIREACION, UN SISTEMA SUMINISTRO DE LIQUIDO A LA PARTE SUPERIOR DE LA PILA, Y UN SISTEMA QUE DRENA UNA SOLUCION DE LIXIVIACION CARGADA DE METAL, CONECTAR LOS OTROS COMPONENTES DE UN SISTEMA DE AIREACION POR CONVECCION NATURAL O FORZADO, COLOCAR LA BARRERA IMPERMEABLE AL AIRE AL MENOS A LOS LADOS DE LA PILA PARA MINIMIZAR O IMPEDIR COMPLETAMENTE EL FLUJO DE AIRE HACIA LA PILA. APLICA ESPECIALMENTE EN LA LIXIVIACION DE UN MINERAL DE SULFURO DE COBRE QUE CONTIENE LA CALCOPIRITA , MINERAL DE COBRE, COMO UNA PARTE DEL MINERAL

    Heap leaching
    8.
    发明专利

    公开(公告)号:AU2011301135A1

    公开(公告)日:2013-03-14

    申请号:AU2011301135

    申请日:2011-09-05

    Abstract: A heap of a material to be leached to recover a valuable metal from the material and a method of constructing the heap are disclosed. The heap comprises sides and a top and a system to control air flow into the heap. The air flow control system comprises a combination of an air impermeable barrier and an aeration system.

    LIXIVIACION EN PILA
    9.
    发明专利

    公开(公告)号:ES2238940B2

    公开(公告)日:2007-12-01

    申请号:ES200450080

    申请日:2003-05-30

    Abstract: Procedimiento para la lixiviación de un valor de metal procedente de una pila de un mineral que contiene metal. El procedimiento comprende establecer un flujo descendente de un licor de lixiviación a través de una sección de la pila suministrando el licor de lixiviación en la superficie superior de la sección y permitiendo que el licor de lixiviación (que contiene valores de metal en la solución) se filtre desde una parte inferior de la sección. El procedimiento está caracterizado porque se suministra el licor de lixiviación en la superficie superior de la sección con un caudal suficiente para que el licor de lixiviación que fluye en dirección descendente sature la sección de la pila.

    HEAP LEACHING
    10.
    发明专利

    公开(公告)号:PL374001A1

    公开(公告)日:2005-09-19

    申请号:PL37400103

    申请日:2003-05-30

    Abstract: A method of leaching a metal value from a heap of a metal-containing ore and a heap leaching operation are disclosed. The method includes establishing a downward flow of a leach liquor through a section of the heap by supplying the leach liquor onto a top surface of the section and allowing the leach liquor (containing metal values in solution) to drain from a lower part of the section. The method is characterized by supplying the leach liquor onto the top surface of the section at a flow rate that is sufficient so that the downwardly flowing leach liquor saturates the section of the heap.

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