The Preparation of Ferronickel Powder from Nickel-Contained Sodium Jarosite Residue

Abstract:

nickel and iron was recovered as ferronickel from sodium jarosite residue containing nickel, the processes include alkaline decomposing residue, hydrogen reducing precipitations produced in alkaline decomposition process and magnetic separating reduced precipitations. The effects of alkaline decomposition temperature, the concentration of NaOH solution and solid/liquid ratio on the process of alkaline decomposing residue were examined. Meanwhile, the influence of hydrogen reduction temperature on the reduced products was studied, too. The results shown the natrojarosite in residue can be near completely decomposed to form hydroxide precipitations in the process of alkaline decomposition. In the process of hydrogen reduction, the rise of reduction temperature can increase the percent reduction for both nickel and iron in reduced results. But it is easier to reduce nickel than to reduce iron at the range of 750°C-950°C. When hydrogen reduction temperature was 950 °C, the percent reduction for nickel and iron in hydrogen reduction process was 95.81% and 94.4%, respectively. XRD tests indicated, except for ferronickel, there were still some impurities such as barium sulfate and barium oxide in reduced product. SEM test indicated the particles of precipitations will become fused together during hydrogen reduction process, so it is difficult to magnetic separate ferronickel purely from reduced results. The content of nickel and iron in magnetic separating product was only 11.64% and 62.40%.

• Periodical: Advanced Materials Research (Volumes 396-398)
• Pages: 536-542
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.396-398.536
• Online since: November 2011
• Authors: Rui Ren, Shu Ping Zheng, Qian Zhang
• Keywords: Alkaline Decomposition, Ferronickel, Hydrogen Reduction, Nickel-Contained Jarosite

References

[1] Gbor, P.K., Ahmed, I.B., Jia, C.Q., 2000. Behaviour of Co and Ni during aqueous sulphur dioxide leaching of nickel smelter slag. Hydrometallurgy 57, 13–22.

DOI: 10.1016/s0304-386x(00)00090-6

[2] Haldun kurnma, F.Gõktepe., 2003. Recovery of zinc from waste material using hydrometallurgical processes. Environmental progress 22(3),161-166

[3] Bulut, G., et al., Recovery of Metals from Old Lead-Zinc Waste. Proceedings of 16: World Mining Congress, Bulgaria, 1994.

[4] Dutrizac, J.E., 1983. Jarosite-type compounds and their application in the metallurgical industry. In: Osseo-Asare, K., Miller, J.D. (Eds.), Hydrometallurgy Research, Development and Plant Practice. The Metallurgical Society of AIME, New York, USA, p.531–551.

[5] Maraboutis, P., Kontopoulos, A., 1988. Jarosite precipition from iron–nickel–cobalt sulfate solutions. In: Tyroler, G.P., Landolt, C.A. (Eds.), Extractive Metallurgy of Nickel and Cobalt. The Metallurgical Society, New York, USA, p.479– 492.

[6] Dutrizac, J.E.; Chen, T.T., 2004. Factors affecting the incorporation of cobalt and nickel in jarosite-type compounds. Canadian Metallurgical Quarterly 43(3), 305-320

DOI: 10.1179/cmq.2004.43.3.305

[7] Dutrizac, J.E., 1984. The behaviour of impurities during jarosite precipitation. In: Renato, G.B. (Ed.), Hydrometallurgical Process Fundamentals. Plenum Press, New York, p.125–169.

DOI: 10.1007/978-1-4899-2274-8_6

[8] L. Theodore, J. Reynold, Introduction to Hazardous Waste Management, Wiley, New York, 1987.

[9] N. Leclerc, E. Meux, J.M. Lecuire, 2003. Hydrometallurgical extraction of zinc from zinc ferrites. Hydrometallurgy 70 , 175–183.

DOI: 10.1016/s0304-386x(03)00079-3

[10] M.R.C. Ismael, J.M.R. Carvalho, 2003. Iron recovery from sulphate leach liquors in zinc hydrometallurgy. Minerals Engineering 16 ,31–39

DOI: 10.1016/s0892-6875(02)00310-2

[11] Kunda, W.; Veltman, H., 1979. Decomposition of jarosite. Metallurgical Transactions B. 10B(3),439-446

DOI: 10.1007/bf02652517

[12] E. Salinas, A. Roca, M. Cruells, F. Patiño, D.A. CÓrdoba, 2001. Characterization and alkaline decomposition–cyanidation kinetics of industrial ammonium jarosite in NaOH media. Hydrometallurgy 60,237–246.

DOI: 10.1016/s0304-386x(01)00149-9