Susan L Brewer

US Patent:

7736488, Jun 15, 2010

Filed:

Dec 29, 2008

Appl. No.:

12/344842

Inventors:

John O Marsden - Phoenix AZ, US
Robert E Brewer - Park City UT, US
Susan R Brewer - Park City UT, US
Joanna M Robertson - Thatcher AZ, US
David R Baughman - Golden CO, US
Philip Thompson - West Valley City UT, US
Wayne W Hazen - Lakewood CO, US
Christel M. A. Bemelmans - Indian Hills CO, US

Assignee:

Freeport-McMoran Corporation - Phoenix AZ

International Classification:

C25C 1/12

US Classification:

205580, 205584, 205574, 205575, 205576

Abstract:

The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.

US Patent:

8012318, Sep 6, 2011

Filed:

Apr 29, 2010

Appl. No.:

12/769884

Inventors:

John O Marsden - Phoenix AZ, US
Robert E Brewer - Park City UT, US
Susan R Brewer - Park City UT, US
Joanna M Robertson - Thatcher AZ, US
David R Baughman - Golden CO, US
Philip Thompson - West Valley City UT, US
Wayne W Hazen - Lakewood CO, US
Christel M. A. Bemelmans - Indian Hills CO, US

Assignee:

Freeport-McMoran Corporation - Phoenix AZ

International Classification:

C25B 15/08

US Classification:

204236, 204232, 204233, 204234, 205584, 205580, 205586, 75740, 75743

Abstract:

A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.

US Patent:

20060144716, Jul 6, 2006

Filed:

Oct 28, 2005

Appl. No.:

11/163761

Inventors:

John Marsden - Phoenix AZ, US
Robert Brewer - Park City UT, US
Joanna Robertson - Thatcher AZ, US
David Baughman - Golden CO, US
Philip Thompson - West Valley City UT, US
Wayne Hazen - Lakewood CO, US
Christel Bemelmans - Indian Hills CO, US
Susan Brewer - Park City UT, US

Assignee:

PHELPS DODGE CORPORATION - Phoenix AZ

International Classification:

C25C 1/12
C22B 15/00

US Classification:

205584000, 075726000, 075731000

Abstract:

A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.

US Patent:

20060144717, Jul 6, 2006

Filed:

Oct 28, 2005

Appl. No.:

11/163762

Inventors:

John Marsden - Phoenix AZ, US
Robert Brewer - Park City UT, US
Joanna Robertson - Thatcher AZ, US
David Baughman - Golden CO, US
Philip Thompson - West Valley City UT, US
Wayne Hazen - Lakewood CO, US
Christel Bemelmans - Indian Hills CO, US
Susan Brewer - Park City UT, US

Assignee:

PHELPS DODGE CORPORATION - Phoenix AZ

International Classification:

C25C 1/12
C22B 15/00

US Classification:

205584000, 075726000, 075731000

Abstract:

The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation.

US Patent:

20090071839, Mar 19, 2009

Filed:

Nov 19, 2008

Appl. No.:

12/274035

Inventors:

John O. Marsden - Phoenix AZ, US
Susan R Brewer - Park City UT, US
Robert E Brewer - Park City UT, US
Joanna M. Robertson - Thatcher AZ, US
David R. Baughman - Golden CO, US
Philip Thompson - West Valley City UT, US
Wayne W. Hazen - Lakewood CO, US
Christel M.A. Bemelmans - Indian Hills CO, US

Assignee:

PHELPS DODGE CORPORATION - Phoenix AZ

International Classification:

C25C 1/12

US Classification:

205349

Abstract:

A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.