Sorting of limestone ores using fluorescent compounds

Details Sorting of limestone ores using fluorescent compounds Sorting of limestone ores using fluorescent compounds

1979-12-31

1982-03-23

Knowles, Allen N.

Classifying, separating, and assorting solids

Precedent preparation of items or materials to facilitate...

Sorting special items or sorting by methods and apparatus...

209576, B07C 502, B07C 534

Patent

active

043211330

ABSTRACT:
A process for separating limestone ore particles from gangue particles comprises the steps of (1) conditioning the mixed particles with an agent comprising a compound having both a surface-selective functional group and a fluorescent moiety, to selectively coat either the ore particles or the gangue particles, to the substantial exclusion of the other; (2) irradiating the mixture to cause fluorescence in the coated particles; and (3) separating the fluorescing, coated particles from the substantially uncoated particles. The process may be used to separate by coating either the ore particles or the gangue particles.

REFERENCES:
patent: 4208272 (1980-06-01), Moudgil

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