Process for selective flotation of phosphorus minerals

Details Process for selective flotation of phosphorus minerals Process for selective flotation of phosphorus minerals

B - Operations, Transporting

03

D

B03D 1/008 (2006.01) B03D 1/01 (2006.01)

Patent

CA 2076164

Process for selective flotation of phosphorus minerals The invention relates to a process far the selective flotation of phosphorus minerals, in which process the flotation collectors used are one or more compounds of the formula 1a and/or 1b Image wherein R1 is a branched or straight-chain C8-C24-. in particular C7-C18-alkenyl, R2 is a branched, straight-chain or cyclic alkyl having 5 and/or 6 carbon atoms and M is hydrogen, an alkali metal or alkaline earth metal, ammonium or NR3R4R5 where R3, R4 and R5 independently of one another are hydrogen, C1-C20- alkyl or C1-C20-hydroxyalkyl, optionally as a mixture or combination with co- collectors.

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