Laterite heap leaching with ferrous lixiviants
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 12, 2012
Grant Date -
Mar 10, 2011
app pub date -
Dec 24, 2008
filing date -
Dec 24, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A process for heap leaching a laterite that includes providing a primary and a secondary heap, with the primary heap comprising predominantly a nickel and cobalt containing sulfide or saprolitic type ore, and the secondary heap comprising predominantly a nickel and cobalt limonitic type ore; leaching the primary heap with a sulfuric acid solution to generate a solution that includes ferrous ions; and using the solution that includes the ferrous ion as the lixiviant to leach the secondary heap, to produce a pregnant leach solution that includes nickel, cobalt and manganese ions.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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BHP BILLITON SSM DEVELOPMENT PTY LTD | MELBOURNE VICTORIA 3000 |
International Classification(s)

- 2008 Application Filing Year
- C22B Class
- 178 Applications Filed
- 93 Patents Issued To-Date
- 52.25 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Moroney, Adam Sean | Fern Bay, AU | 5 | 4 |
# of filed Patents : 5 Total Citations : 4 |
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Patent Citation Ranking
- 0 Citation Count
- C22B Class
- 0 % this patent is cited more than
- 13 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

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Nov 17, 2014 | FPAY | FEE PAYMENT | year of fee payment: 8 |
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Dec 11, 2007 | CC | CERTIFICATE OF CORRECTION | |
May 15, 2007 | I | Issuance | |
Apr 25, 2007 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 31, 2005 | P | Published | |
Nov 29, 2004 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DILS, JEFFREY M.;BRAZELL, KENNETH M.;REEL/FRAME:016052/0916 Owner name: ONE WORLD TECHNOLOGIES LIMITED, BERMUDA Effective Date: Nov 29, 2004 |
Apr 27, 2004 | F | Filing | |
Feb 10, 2000 | PD | Priority Date |

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