Beneficiation of a Low Grade Lead Ore by Gravity Pre-Concentration and Flotation

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Abstract:

This study is to investigate the beneficiating possibility of a low grade lead ore in Yunnan by current mineral processing technology. A low grade lead ore sample assaying 1.14%Pb and 5.72g/t Ag was used in tests. In the experiment, gravity pre-concentration to discard the tailings and the effects of grinding fineness, types and dosages of reagents in roughing were investigated. On the basis on optimum condition of roughing, a close circuit flowsheet was put forward. A lead concentrate assaying 47.02% Pb and 192.36g/t Ag was obtained with the recovery 73.59% and 65.12%, respectively. It gives some valuable information for the Owner in making a decision in utilization the ore economically.

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11-14

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August 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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