Classifying – separating – and assorting solids – Fluid suspension – Liquid
Reexamination Certificate
2007-11-27
2007-11-27
Lithgow, Thomas M. (Department: 1724)
Classifying, separating, and assorting solids
Fluid suspension
Liquid
C209S167000, C252S061000, C540S484000
Reexamination Certificate
active
10999754
ABSTRACT:
The present invention provides a ammoniated collector (amine, azepine, etc.) alone or in combination with other thiol-type collecting reactants, as well as sodium, iron, magnesium, and/or manganese sulfates, sulfurs, oxides, and hydroxides, acrylic acid polymers and copolymers or other spreading agents, in the process of grinding and floating mineral ores, in order to allow to set new floating operational conditions in existing mineral ore processing plants; to obtain substantial improvements in metallurgic productivity by improving the kinetics of the floating process, which allows to increase recovery of molybdenum, decrease recovery of iron, increase copper grade in copper concentrate, at least keep or improve copper recovery, among others, through the addition of a collecting reactant implying savings of up to 100% of consumption of modifying agents, such as lime, currently used.
REFERENCES:
patent: 1897265 (1933-02-01), Martin
patent: 1974885 (1934-09-01), Wigton
patent: 2208935 (1940-07-01), Sturgis et al.
patent: 2232059 (1941-02-01), Farlow
patent: 2611485 (1952-09-01), Tveter
patent: 3595390 (1971-07-01), Booth
patent: 3908010 (1975-09-01), Schmutz et al.
patent: 4110323 (1978-08-01), Dewaele
patent: 4684459 (1987-08-01), Klimpel et al.
patent: 4908125 (1990-03-01), Mackenzie et al.
patent: 2006/0032800 (2006-02-01), Correa-Castillo et al.
Correa-Castillo Hector
Rodriguez-Buendia German
Berman Charles
Greenberg & Traurig, LLP
Lithgow Thomas M.
Procesos Mineros e Industries Conosur S.A.
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