公开(公告)号：CA2465509A1

公开(公告)日：2003-05-08

申请号：CA2465509

申请日：2002-10-29

Applicant: TECH RESOURCES PTY LTD

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

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 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).

公开(公告)号：CL2004001024A1

公开(公告)日：2005-04-01

申请号：CL2004001024

申请日：2004-05-12

Applicant: TECH RESOURCES PTY LTD

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

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

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).

公开(公告)号：AU2009200400A1

公开(公告)日：2009-02-26

申请号：AU2009200400

申请日：2009-02-03

Applicant: TECH RESOURCES PTY LTD

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

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).