Adsorption behavior of sodium hexametaphosphate on rhodochrosite and calcite surface
Using sodium hexametaphosphate as an inhibitor,the flotation behavior of rhodochrosite and calcite,as well as the mechanism of sodium hexametaphosphate,were studied through single mineral flotation experiments,artificial mixed ore flotation experiments,flotation solution chemical calculations,molecular dynamics simulations,and potentiodynamic measurements.The results indicate that using sodium hexametaphosphate as an inhibitor can achieve flotation separation of rhodochrosite and calcite.The main reason why sodium hexametaphosphate can selectively inhibit the flotation of calcite is that the main form of sodium hexametaphosphate in solution,HPO42-,will adsorb on the surface of calcite,thereby inhibiting its flotation.However,there is basically no adsorption on the surface of rhodochrosite,which does not affect its flotation,thus achieving flotation separation of the two minerals.
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