depressants and dispersants in mineral flotation the challenge is to maximize the recovery of desired minerals while rejecting unwanted gangue components. depressants are required to give a low affinity to active sites on valuable mineral surfaces and a high affinity for gangue minerals and some sulfides.
the flotation of cerussite is best performed following sufficient preconditioning to precipitate dissolved lead as lead sulphide and to sulphidize the mineral surface prior to collector addition. however over sulphidizedcerussite will significantly reduce flotation response. dosage levels of nahs for galena flotation are significantly lower.
i want explanation in ore processing of flotation of rare earths ore monazite ex which adequate collector and which depressing for minerals of gangue to knowing oxides carbonates silica and apatite.and another question how of extracting monazite from apatite
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effect of ph on the recovery and grade of base metal sulphides (pgms) by flotation edson muzenda member iaeng ayo s. afolabi member iaeng ambali s. abdulkareem and freeman ntuli t proceedings of the world congress on engineering and computer science 2011 vol ii wcecs 2011 october 19-21 2011 san francisco usa isbn: 978-988-19251-7-6