System and method of concentrating niobium ore

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United States of America Patent

PATENT NO 11738353
APP PUB NO 20200147620A1
SERIAL NO

16603446

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Abstract

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Methods for niobium concentration from a carbonatite host rock are presented. A basic process for niobium mineral concentration involves performing niobium mineral flotation, on a sufficiently liberated ore slurry, using at one least aromatic hydroxamate collector; and at least one lead salt as a performance modifier. A more optimized process further includes dispersion. A further optimized process includes: magnetic separation, dispersion, sulphide removal, fine suspended particle removal, and niobium cleaner flotation stages. The use of one of number of tested lead salts during flotation improves the yield, and lowers the cost as a significantly lower amount of the collector is required. The process is useful for recovering a variety of species of niobium minerals such as fersmite, pyrochlore, columbite, fergusonite, niobium-containing rutile, and niobium-containing ilmenite.

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Patent Owner(s)

Patent OwnerAddress
TASEKO MINES LIMITED1040 WEST GEORGIA STREET 12TH FLOOR VANCOUVER V6E 4H1

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Merriam, Keith Pitt Meadows, CA 1 0
Rotzinger, Robert West Vancouver, CA 1 0

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