Classifying – separating – and assorting solids – Fluid suspension – Liquid
Reexamination Certificate
2008-06-24
2008-06-24
Lithgow, Thomas M. (Department: 1797)
Classifying, separating, and assorting solids
Fluid suspension
Liquid
C209S166000
Reexamination Certificate
active
07389881
ABSTRACT:
A method of recovering a valuable component from a feed slurry in minerals processing plant for a mined material is disclosed. The method includes separating the feed slurry on the basis of particle size into at least two streams, of which one stream is a fines stream. The pH of the fines stream is then adjusted to be within a range in which contaminants on the surface of the fines are soluble so that contaminants dissolve from the surface of the fines. Thereafter, the valuable component is floated from the pH adjusted fines stream.
REFERENCES:
patent: 1157176 (1915-10-01), Owen
patent: 5700369 (1997-12-01), Zhou et al.
patent: 9723540 (1997-11-01), None
patent: 1095640 (1981-02-01), None
patent: 3626920 (1988-02-01), None
Handbook of Mineral Dressing—Ores and Industrial Minerals (Arthur F. Taggart) John Wiley & Sons, Inc. copyright 1927. See chapter 12 pp. 29-33, 93-96.
Andreatidis John Patrick
Torrisi Christofo
BHP Billiton Pty Ltd
Lithgow Thomas M.
Miles & Stockbridge P.C.
Schaffer, Esq. David R.
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