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ArticleName Investigation of mechanism of interaction of complexing agent diantipyrylmethane with sulfide minerals and cassiterite, included in the composition of refractory tin sulfide ores
DOI 10.17580/tsm.2017.10.01
ArticleAuthor Ivanova T. A., Chanturiya V. A., Zimbovskiy I. G., Getman V. V.

Research Institute of Comprehensive Exploitation of Mineral Resources, Moscow, Russia:

T. A. Ivanova, Senior Researcher
V. A. Chanturiya, Academician of Russian Academy of Sciences
I. G. Zimbovskiy, Researcher
V. V. Getman, Senior Researcher, e-mail:


For the first time, we investigated the influence of the complexing agent diantipyrylmethane (DAM) (pyrasol derivative) on flotation and sorption properties of sulfide minerals, cassiterite and silver, included in complex refractory tin-bearing ores. We also found the possibility of formation of hardly soluble compounds of DAM with copper, lead, zinc and tin in nearflotation conditions. A complex water-soluble compound is formed together with iron. A method of sensing of the force of bubble detachment from mineral surface was used for investigation of the hydrophobic nature of chalcopyrite, pyrite, arsenopyrite, galenite and cassiterite with DAM. Preliminary introduction of DAM leads to a small increase of hydrophobic properties of chalcopyrite and galenite surface in comparison with one xanthate, while it has no visible effect on the hydrophobic nature of arsenopyrite surface. Together with xanthate, DAM does not increase the cassiterite hydrophobic nature. We also investigated the sorption and flotation properties of DAM reagent in relation to pure galenite and galenite with artificially applied silver. Silver was applied on mineral surface of fine-dispersed galenite (–0.063+0.043 mm) by reducing adsorption. Scanning electron microscope found the DAM sorption both on the sites with silver and on the galenite surface. Flotation experiments defined the DAM ability to make the hydrophobic nature of silver-bearing galenite surface more strong than the one of pure galenite. The reagent has no effect on cassiterite flotation flotability. The selective properties of DAM in relation to pyrite are revealed in alkaline environment. With the DAM consumption of 100 g/t, the extraction difference during the flotation isolation of chalcopyrite, galenite, sphalerite from pyrite is 35, 40 and 60%, respectively. We opened the mechanism of interaction of DAM with sulfides and cassiterite, included in refractory tin sulfide ores. We also found the change of physical and chemical properties of the minerals surface and increase of the contrast range of their flotation properties.
Our investigation was financed by the grant of the Russian Scientific Fund (project No. 17-17-01292).

keywords Flotation, tin ore, sulphide minerals, collectors, complexing agents, pyrazolone, silver, wettability, hydrophobic nature, spectrometry

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