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| Effect of sodium hexametaphosphate on magnesium reduction during a low grade copper-nickel sulphide flotation process |
| Received:March 03, 2020 Revised:March 10, 2020 |
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| DOI： |
| KeyWord:copper-nickel sulfuride ore， MgO reduction，Sodium hexametaphosphate，low grade concentrate |
| Author | Institution |
| chenwei |
JINCHUAN GROUP.,LTD.Mineral processing Plant |
| wuyue |
JINCHUAN GROUP.,LTD.Mineral processing Plant |
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| Abstract: |
| The MgO content of a copper-nickel sulfide ore is high, and the MgO content of the concentrate obtained by conventional reagent flotation is also high, which seriously affects the subsequent smelting process. Using sodium hexametaphosphate as flotation regulator, the effect of sodium hexametaphosphate on the flotation and magnesium reduction of copper nickel sulfide ore was studied. The results show that the best dosage of sodium hexametaphosphate in the primary and secondary roughing is 300 g/t and 100 g/t respectively. Under this condition, the recovery of concentrate nickel increases by 0.99%, the grade of high concentrate magnesium oxide decreases by 1.6%, and the grade of low concentrate magnesium oxide decreases by 3.80%. |
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