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    MICROWAVE TREATMENT OF MINERALS
    44.
    发明专利
    MICROWAVE TREATMENT OF MINERALS 未知

    公开(公告)号：CA2582927C

    公开(公告)日：2013-06-11

    申请号：CA2582927

    申请日：2005-09-30

    Applicant: TECH RESOURCES PTY LTD

    Inventor： SHAW RAYMOND WALTER

    IPC: C22B1/00

    Abstract: A method and an assembly for treating minerals using microwave energy is disclosed. The method includes exposing a moving bed, preferably a mixed moving bed, of mineral particles to pulsed high energy microwave energy so that at least substantially all particles receive at least some exposure to microwave energy.

    CRUSHING MATERIAL
    45.
    发明专利
    CRUSHING MATERIAL 未知

    公开(公告)号：CA2585345C

    公开(公告)日：2013-01-29

    申请号：CA2585345

    申请日：2005-10-24

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BEARMAN RICHARD ANTHONY ,  BATTERHAM ROBIN JOHN ,  SHAW RAYMOND WALTER

    IPC: B02C4/02 ,  B02C4/08 ,  B02C4/28 ,  B02C4/32 ,  B02C21/00 ,  B02C25/00

    Abstract: A method and an apparatus for crushing material, particularly mined material, is disclosed. In one embodiment two or more pairs (3,7) of crushing rolls successively crush mined material. The pairs of crushing rolls are arranged and operated so that an upstream pair (3) of rolls produces a feed, preferably a pressurised feed, for a downstream pair (7) of rolls. In another embodiment, at least an upstream pair (3) of rolls is driven intermittently, for example by means of a stepping motor to provide stepped rotational movement of the rolls.

    Leaching ores
    46.
    发明专利
    Leaching ores 未知

    公开(公告)号：AU2008267769B2

    公开(公告)日：2012-05-31

    申请号：AU2008267769

    申请日：2008-06-26

    Applicant: TECH RESOURCES PTY LTD

    Inventor： HOLLITT MICHAEL JOHN ,  SHAW RAYMOND WALTER ,  REES KEVIN LEE

    IPC: C22B3/08 ,  C22B3/02 ,  C22B15/00

    Abstract: A process for leaching an ore containing sulphidic copper-containing minerals is disclosed. The process includes carrying out an aerated oxidising leach of a part of the ore and causing reactions with a source of iron such as pyrite in the ore and producing an acidic leach liquor containing ferrous ions, ferric ions, and copper ions in solution. The process also includes carrying out a leach of another part of the ore using the leach liquor produced in step (a) under conditions that minimise reactions with a source of iron such as pyrite in the ore and producing a leach liquor containing copper ions in solution.

    RECOVERY OF COPPER FROM CHALCOPYRITE
    47.
    发明专利
    RECOVERY OF COPPER FROM CHALCOPYRITE 未知

    公开(公告)号：CA2465509C

    公开(公告)日：2011-10-18

    申请号：CA2465509

    申请日：2002-10-29

    Applicant: TECH RESOURCES PTY LTD

    Inventor： SHAW RAYMOND WALTER ,  ESDAILE LUCY ,  GERSON ANDREA RUTH ,  THOMAS JOAN ELIZABETH ,  HARMER SARAH LOUISE

    IPC: C22B3/04 ,  C22B3/18 ,  C22B15/00

    Abstract: A process for recovering copper from chalcopyrite is disclosed. The process includes oxidising sulphur in chalcopyrite with a solution under predetermined 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).

    HEAP LEACHING
    48.
    发明专利
    HEAP LEACHING 未知

    公开(公告)号：CA2487754C

    公开(公告)日：2011-05-24

    申请号：CA2487754

    申请日：2003-05-30

    Applicant: TECH RESOURCES PTY LTD

    Inventor： BATTERHAM ROBIN JOHN ,  ESDAILE LUCY ,  SHAW RAYMOND WALTER

    IPC: C22B3/04 ,  C22B3/06 ,  C22B3/08 ,  C22B3/10 ,  C22B3/12 ,  C22B3/14 ,  C22B3/16 ,  C22B3/18

    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.

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