Method to improve the cleaner froth flotation process

Details Method to improve the cleaner froth flotation process Method to improve the cleaner froth flotation process

2008-04-22

2008-04-22

Lithgow, Thomas M. (Department: 1797)

Classifying, separating, and assorting solids

Fluid suspension

Liquid

C209S167000

Reexamination Certificate

active

11303522

ABSTRACT:
The present invention provides a method to improve the cleaner froth flotation process for the selective separation of ore values including, for example, copper, zinc, molybdenum, iron and mixtures there of, in existing flotation plants comprising the step of adding one or more acrylic acid polymers and copolymers to the cleaner froth flotation step in a standard multistep flotation process.

REFERENCES:
patent: 2740522 (1956-04-01), Aimone et al.
patent: 3572504 (1971-03-01), DeCuyper et al.
patent: 4162044 (1979-07-01), Manfroy et al.
patent: 5019246 (1991-05-01), Wang et al.
patent: 6536595 (2003-03-01), Kowalski et al.
patent: 7247200 (1974-04-01), None
patent: 2193660 (1988-02-01), None

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