Process for selective flotation of phosphorus minerals

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

1990-01-10

1990-11-06

Lacey, David L.

Classifying, separating, and assorting solids

Fluid suspension

Liquid

252 61, 209902, B03D 101, B03D 102

Patent

active

049684159

ABSTRACT:
A process for selective flotation of phosphate minerals, wherein a compound of the formula 1a or 1b ##STR1## in which R.sup.1 is branched or unbranched C.sub.8 -C.sub.24 -alkenyl, R.sup.2 is branched or unbranched C.sub.1 -C.sub.4 -alkyl and M is hydrogen, ammonium, triethanolammonium, an alkali metal atom or an alkaline earth metal atom, is added as a collecting agent to the flotation suspension.

REFERENCES:
patent: 2099120 (1937-11-01), Kirby et al.
patent: 3779380 (1973-12-01), Bishop
patent: 4309282 (1982-01-01), Smith
Chem. Abstract, vol. 106, Abstract 104652n, "Alkyl(Alkenyl) Succinic Acid Alkyl Monoesters-Effective Collectors for the Flotation of Apatite"-1987.

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