Combinations of different-class collectors in selective sulphide-ore flotation

The paper discusses laboratory test data on well-known sulphydryl collectors and new modified dithiophosphates Beraflot used to float monomineral fractions of pyrite, chalcopyrite, galena, and sphalerite. Frothless flotation is employed in flotation tests, IR-spectroscopy is used to identify surface...

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Bibliographic Details
Published in:Journal of mining science 2010, Vol.46 (1), p.82-88
Main Authors: Ignatkina, V. A, Bocharov, V. A, Tubdenova, B. T
Format: Article
Language:English
Subjects:
Accumulators
Chalcopyrite
Chemical tests and reagents
Collectors
combination of reagents
Dimethyl
Earth and Environmental Science
Earth Sciences
Flotation
flotation agents
Galena
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Mineral Dressing
Mineral Resources
minerals
Pyrite
selectivity of recovery
Sphalerite
Sulfides
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Summary:The paper discusses laboratory test data on well-known sulphydryl collectors and new modified dithiophosphates Beraflot used to float monomineral fractions of pyrite, chalcopyrite, galena, and sphalerite. Frothless flotation is employed in flotation tests, IR-spectroscopy is used to identify surface compounds, and technological investigations are based on froth flotation. It is shown that dimethyl dithiocarbamate, isobutyl dithiophosphate and modified collector Beraflot-3035 give the poorest results of pyrite flotation, while Beraflot-3035 provides the highest galena and chalcopyrite recovery. It is found that Beraflot-3035 is capable to form different surface compounds on pyrite, chalcopyrite, galena, and sphalerite. Unclosed ore tests verify selectivity of Beraflot-3035.
ISSN:1062-7391
1573-8736
DOI:10.1007/s10913-010-0012-y