Process for the selective flotation of phosphorus minerals

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

B - Operations, Transporting

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B03D 1/02 (2006.01) B03D 1/008 (2006.01) B03D 1/01 (2006.01) B03D 1/012 (2006.01) B03D 1/04 (2006.01) C01B 25/01 (2006.01)

Patent

CA 2037883

HOE 90/F 084 Abstract of the disclosure Process for the selective flotation of phosphorus minerals The process for the selective flotation of phosphorus minerals, wherein a mixture of a compound of the formula 1a and/or 1b (1a) and/or (1b) Image Image in which R1 is branched or unbranched C8-C24-alkenyl, R2 is branched or unbranched C1-C4-alkyl and M is hydrogen, ammonium, triethanolammonium, an alkali metal atom or an alkaline earth metal atom, and of one or more of the following compounds Image (2) Image (3) Image (4) Image (5) Image (6) Image (7) Image (8) Image (9) R - N - [CH2 - PO(OH)2]2 (10) R - CO - NH - OM (11) R - COOH (12) R - SO2NH - CH2COOM (13) and petroleumsulfonates R'SO3M (14) in which the individual symbols are as defined in the description, is added as a collection agent to the flotation pulp.

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