Base metal mineral flotation processes
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United States of America Patent
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Jan 5, 1999
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N/A
app pub date -
Nov 24, 1995
filing date -
Nov 25, 1994
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Expired
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Abstract
A process for recovering a secondary base metal mineral from a material containing it involving treatment of a pulp of the material with surface modifying reagent such as a water soluble sulphide. The pulp is subjected to deaeration by introduction of a non-oxidising gas to prevent oxidation of the reagent. The process is applicable to recovery of secondary minerals such as azurite, malachite, cerussite, anglesite and zinc ferrites from host materials.
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