Study on Increasing Recovery of Precious Metals from Porphyry Copper Ore in Pulang Copper Mine Yunnan

The grade of copper in porphyry copper ores is generally lower,so,the associated metals should be recovered as far as possible to enhance enterprise′s economic benefite.In order for increasing the recovery of precious metals from pulang porphyry copper ore in Yunnan,an experimental research on separarion efficiency of many kinds of combined collectors was carried out.Compared with using single collector,better results were obtained by use of combined collectors.This result has also been successfully confirmed by the semi-industrial scale trial.