Apparatus and methods for recovering valuable metals
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United States of America Patent
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Sep 2, 2003
Grant Date -
N/A
app pub date -
Sep 12, 2000
filing date -
Mar 13, 1998
priority date (Note) -
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Abstract
Apparatus and method for continuously separating a dense valuable material such as gold from a feed including a grinding mill (2) which directs a crushed feed through hydrocyclones (9) for separation into a light and dense fraction. The dense fraction is concentrated further by in Line Pressure Jigs (16,17) in line and the concentrate (23) is leached in a rotating leaching reactor (45). The resulting pregnant liquor is subjected to electrowinning (83) to recover gold and the spent liquor is recycled.
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