Title: Dispersive mechanism of sodium hexametaphosphate on flotation of copper-nickel sulphide
Abstract: Through flotation tests,sedimentation experiments,zeta potential measurements,infrared spectroscopic analysis and observation under microscope,the effect of sodium hexametaphosphate(SHMP) on the flotation of copper-nickel sulphide was investigated,and the dispersive mechanism of sodium hexametaphosphate was studied.The results of tests on artificial mixed mineral show that the hetero-coagulation between pentlandite and serpentine decreases the flotation recovery of pentlandite,the sodium hexametaphosphate can fulfil the flotation separation of pentlandite and serpentine by promoting the dispersion of artificial mixed mineral.The flotation results of copper-nickel sulphide ores indicate that sodium hexametaphosphate can disperse pulp effectively.The qualified nickel concentrate products can be obtained by two roughing with total nickel recovery of 80.27%.The mechanisms demonstrate that the sodium hexametaphosphate adjusts the surface potential of serpentine through chemical adsorption and dissolving magnesium ions from serpentine surface,and then disperses pentlandite and serpentine.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 7
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