METHOD AND APPARATUS FOR CONTROLLING THE FLOTATION PROCESS OF PYRITE-CONTAINING SULPHIDE ORES
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United States of America Patent
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Apr 9, 2015
app pub date -
May 10, 2012
filing date -
May 10, 2012
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Abstract
Method and apparatus for controlling the flotation process of sulphide ores including separation of sulphide minerals from pyrite in an alkaline environment created by lime. The method comprises measuring the molybdenum electrode potential of an aqueous slurry of the ore and adjusting the addition of lime based on the measured molybdenum electrode potential to maintain the molybdenum electrode potential of the slurry in a preselected range. The apparatus comprises means (6) for measuring the molybdenum electrode potential and a control unit (7) for controlling the addition of lime to the slurry based on the measured molybdenum electrode potential of the slurry.
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