Patents by Inventor Lucy Esdaile
Lucy Esdaile has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9194020Abstract: 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.Type: GrantFiled: September 5, 2011Date of Patent: November 24, 2015Assignee: Technological Resources Pty. LimitedInventors: Lucy Esdaile, Paul Leslie Brown
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Publication number: 20130247719Abstract: 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.Type: ApplicationFiled: September 5, 2011Publication date: September 26, 2013Applicant: TECHNOLOGICAL RESOURCES PTY. LIMITEDInventors: Lucy Esdaile, Paul Leslie Brown
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Patent number: 8486177Abstract: 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.Type: GrantFiled: August 2, 2012Date of Patent: July 16, 2013Assignee: Technological Resources Pty LtdInventors: Robin John Batterham, Lucy Esdaile, Raymond Walter Shaw
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Publication number: 20120301392Abstract: 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.Type: ApplicationFiled: August 2, 2012Publication date: November 29, 2012Applicant: TECHNOLOGICAL RESOURCES PTY LTDInventors: Robin John Batterham, Lucy Esdaile, Raymond Walter Shaw
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Patent number: 7686866Abstract: 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).Type: GrantFiled: October 20, 2002Date of Patent: March 30, 2010Assignee: Technological Resources PTY LimitedInventors: Raymond W. Shaw, Lucy Esdaile, Andrea R. Gerson, Joan E. Thomas, Sarah L. Harmer
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Patent number: 7678172Abstract: 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 achieve without significantly altering the mineralogy, i.e., 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.Type: GrantFiled: May 30, 2003Date of Patent: March 16, 2010Assignee: Technological Resources Pty LtdInventors: Robin John Batterham, Lucy Esdaile, Raymond Walter Shaw, Christopher Robin Cross
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Publication number: 20060096415Abstract: 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 achieve without significantly altering the mineralogy, i.e., 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.Type: ApplicationFiled: May 30, 2003Publication date: May 11, 2006Inventors: Robin Batterham, Lucy Esdaile, Raymond Shaw, Christopher Cross
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Publication number: 20060090602Abstract: 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.Type: ApplicationFiled: May 30, 2003Publication date: May 4, 2006Inventors: Robin Batterham, Lucy Esdaile, Raymond Shaw
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Publication number: 20050044990Abstract: 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).Type: ApplicationFiled: October 20, 2002Publication date: March 3, 2005Inventors: Raymond Shaw, Lucy Esdaile, Andrea Gerson, Joan Thomas, Sarah Harmer