Taking pyrite,the main gold-bearing mineral in gold mines,as the research object,this paper investigated the foam performance of four collectors:butyl xanthate,ammonium dibutyl dithiophosphate,Z200,and MA-1,as well as four foaming reagents:2# oil,paraffin,pine oil,and HX-609,in various combinations.Through flotation tests,foam stability tests,surface tension measurements and viscosity measurements,the effects of different reagent systems on the recovery of gold-bearing pyrite were compared.The test results show that the optimal pH value for the flotation of gold-bearing pyrite is about 7,and MA-1+HX-609 is significantly better than other reagent systems.The foam stability test results under the gas-solid-liquid three-phase system show that HX-609 has a longer foam half-life than other foaming reagents,although its foaming height is not as high.The surface tension and viscosity test results indicate that the MA-1+HX-609 system has the strongest ability to reduce the surface tension of the slurry,resulting in higher viscosity and better foam performance.Given that MA-1 is a long carbon chain xanthate,its hydrophobicity towards gold-bearing pyrite is stronger compared to other low carbon chain reagents.In summary,MA-1+HX-609 is a suitable flotation reagent system for gold-bearing pyrite.
维普
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