Heap leaching
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 16, 2013
Grant Date -
Nov 29, 2012
app pub date -
Aug 2, 2012
filing date -
May 31, 2002
priority date (Note) -
In Force
status (Latency Note)
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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 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.
First Claim
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International Classification(s)
- 2012 Application Filing Year
- C22B Class
- 304 Applications Filed
- 250 Patents Issued To-Date
- 82.24 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 16, 2025 |
