Effect pH on Moly Rougher Recovery by Flotation

pH was varied in the moly flotation in roughers while attempting to maintain a eH in the low -500 mV. The results of the test, shows that the best recoveries of moly are achieved at pH values of 9 and below. The copper recoveries appear to get activated at these low pH values, but the copper recovery is sufficiently low (below 40%) that an effective separation will happen.