Flotation of platinum group metal ore materials
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United States of America Patent
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Jan 20, 2004
Grant Date -
Aug 7, 2003
app pub date -
Oct 17, 2002
filing date -
Nov 21, 2001
priority date (Note) -
Expired
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Abstract
Provided is a method involving flotation of a feed of platinum group metal ore material to prepare a platinum group metal concentrate during mineral processing operations. Prior to and/or during the flotation, a lead-containing activator reagent and a xanthate collector reagent are added to the slurry and during the flotation, an oxygen-deficient flotation gas, such as nitrogen gas, is used.
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