Abstract
Apatite is a valuable component of the collophane taken from Yunnan, as it is in the shape of oolith and contains a lot of carbon, and hence an effective benefication of the apatite is difficult to be occurred by means of concentration. Based on the results of both direct and reverse flotation tests, it shows that reverse flotation is effective in the benefication of the apatite to a certain extent. When reverse flotation is employed to treat the run-of-mine at a grade of 18.77%, the concentrate containing P2O5 24.04% at a recovery of 62.58% can be produced.
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