The aim of this study was to reduce the high ironIron and aluminumAluminum content of an ironIron laden copper oreCopper ore. The copper oreCopper ore from Akiri in Nasarawa state, Nigeria was ground passing 250 µm sieve. X-ray fluorescence elemental analysisAnalysis showed that the ground ore contain 4.68% copperCopper and 11.33% ironIron. Scanning electron microscopy-energy dispersive X-ray spectroscopy pointScanning electron microscopy analysisAnalysis of the ore showed that it contains 6.20, 6.40, 2.12, and 65.8% of titanium, manganese, aluminumAluminum and ironIron, respectively at the random point. The ore was subjected to agitated leachingLeaching with dilute sulphuric acid and the solid copperCopper was recovered by cementationCementation with zincZinc powder. The ironIron contaminant in the cemented copperCopper was removed by digestionDigestion in a mixture of 0.5 M sulphuric acid and 0.1 M sodium carbonate solutions at 50 °C in a slurry of 10 percent solid, without stirring at a pH of 2 for 30 min. The purified copperPurified copper was found to contain 97.20% copperCopper and low constituents of ironIron, aluminumAluminum, manganese, chromium, vanadium, and silicon impuritiesImpurity of 0.79, 0.08%, 0.61, 0.02, 0.03, and 0.33%, respectively. The results obtained therefore showed thar most of the impurityImpurity elementsElements in the ore were largely removed by the leachingLeaching, cementationCementation and purification processes carried out.

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Removal of Iron Contaminant in the Cemented Copper from an Iron Laden Copper Ore

  • Tajudeen Ayodele,
  • Abraham Adeleke,
  • Ayodele Daniyan

摘要

The aim of this study was to reduce the high ironIron and aluminumAluminum content of an ironIron laden copper oreCopper ore. The copper oreCopper ore from Akiri in Nasarawa state, Nigeria was ground passing 250 µm sieve. X-ray fluorescence elemental analysisAnalysis showed that the ground ore contain 4.68% copperCopper and 11.33% ironIron. Scanning electron microscopy-energy dispersive X-ray spectroscopy pointScanning electron microscopy analysisAnalysis of the ore showed that it contains 6.20, 6.40, 2.12, and 65.8% of titanium, manganese, aluminumAluminum and ironIron, respectively at the random point. The ore was subjected to agitated leachingLeaching with dilute sulphuric acid and the solid copperCopper was recovered by cementationCementation with zincZinc powder. The ironIron contaminant in the cemented copperCopper was removed by digestionDigestion in a mixture of 0.5 M sulphuric acid and 0.1 M sodium carbonate solutions at 50 °C in a slurry of 10 percent solid, without stirring at a pH of 2 for 30 min. The purified copperPurified copper was found to contain 97.20% copperCopper and low constituents of ironIron, aluminumAluminum, manganese, chromium, vanadium, and silicon impuritiesImpurity of 0.79, 0.08%, 0.61, 0.02, 0.03, and 0.33%, respectively. The results obtained therefore showed thar most of the impurityImpurity elementsElements in the ore were largely removed by the leachingLeaching, cementationCementation and purification processes carried out.