MONOTHIOPHOSPHATE CONTAINING COLLECTORS AND METHODS
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United States of America Patent
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Issued Date -
Jul 30, 2015
app pub date -
Jul 17, 2013
filing date -
Jul 17, 2012
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Abstract
Novel collectors in the form of mixtures of one or more monothiophosphates and one or more thionocarbamates, optionally containing other materials useful for enhancing the performance of the collectors, are used in froth flotation processes for the recovery of selected metals or minerals, such as gold, silver, copper, zinc or similar contained in the ore material being treated. Not only to the combinations of monothiophosphates and thionocarbamates produce more efficient collectors which improve the yield and selectivity of the recovery of the metal or mineral from the ore being treated, but the use of the monothiophosphate allows new combinations of collectors to be formed that do not separate on standing thus avoiding the disadvantage of having to stir the collector mixtures immediately prior to use. Specific examples of the monothiophosphates are disclosed.
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