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Tytuł artykułu

Separation of nickel and iron from lateritic ore using a digestion – roasting – leaching – precipitation process

Treść / Zawartość
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
This paper investigates extraction of nickel and iron from a lateritic nickel ore from the Caldag region of Manisa in Turkey. The ore sample contains 1.2% Ni, 24.77% Fe and 0.062% Co. The process applied includes digestion with 40 wt-% sulfuric acid at 200 C for 60 min, roasting at 700 C for 15 min, leaching with water for 30 min at 1:5 solid/liquid ratio (by weight) and precipitation of the remaining iron at pH 3 and 60 C. In order to improve nickel and cobalt extractions using the digestion-roasting- leaching-precipitation process (DRLP), Na2SO4 addition in the roasting stage was examined. Under the optimum conditions and in the presence of Na2SO4, 86.2% Ni and 94.2% Co extractions were obtained with almost zero iron content. As a result, 2.07 g dm-3 Ni, 0.12 g dm-3 Co and 0.05 g dm-3 Fe could be achieved in the pregnant leach solution within nearly 2.5 hours.
Słowa kluczowe
Rocznik
Strony
564--574
Opis fizyczny
Bibliogr. 20 poz., rys., tab.
Twórcy
autor
  • Istanbul Technical University, Mining Faculty, Mineral Processing Engineering Department, Istanbul, Turkey
autor
  • Istanbul Technical University, Mining Faculty, Mineral Processing Engineering Department, Istanbul, Turkey
Bibliografia
  • BASTURKCU, H. and ACARKAN, N., 2016, Leaching behaviour of a Turkish lateritic ore in the presence of additives, Physicochem. Probl. Miner. Process. 52(1), 2016, 112−123.
  • BUYUKAKINCI, E. and TOPKAYA, Y.A., 2009, Extraction of nickel from lateritic ores at atmospheric pressure with agitation leaching, Hydrometallurgy, 97, 33-38.
  • CHAKRABORTY, M. and SRIKANTH, S., 2000, Kinetics of salt roasting of chalcopyrite using KCl, Thermochemica Acta, 362, 25-35.
  • CHANDER, S., 1982, Atmospheric pressure leaching of nickeliferous laterites in acidic media, Transactions of the Indian Institute of Metals, 35, 366–371.
  • DALVI, A., BACON, W.G. and OSBORNE, R.C., 2004, The Past and the Future of Nickel Laterites, PDAC International Convention Trade Show & Investors Exchange, March 7-10.
  • ECKELMAN, M., 2010, Facility-level energy and grrenhouse gas life-cycle assessment of the global nickel industry, Resour. Conserv. Recycle, 54, 256-266.
  • FU, C., 1993, Theory of Non-Ferrous Metallurgy Industry Publishing, Beijing, Chapter 4.
  • GUO, X., LI, D., PARK, K., TIAN, Q. and WU, Z., 2009, Leaching behavior of metals from a limonitic nickel laterite using a sulfation-roasting-leaching process, Hydrometallurgy, 99, 144-150.
  • GUO, Q., QU, J., QI, T., WEI, G. and HAN, B., 2012, Activation pretreatment of limonitic laterite ores by alkali-roasting method using sodium carbonate, Minerals Engineering, 24, 825-832.
  • HARRIS, C.T., PEACEY, J.G. and PICKLES, C.A., 2011, Selective sulfidation of a nickeliferous lateritic ore, Minerals Engineering, 24, 651-660.
  • KAR, B.B. and SWAMY, Y.V., 2000, Some aspects of nickel extraction from chromiferous overburden by sulfatization roasting, Minerals Engineering, 13, 1635-1640.
  • KAR, B.B., SWAMY, Y.V. and MURTHY, B.V.R., 2000, Design of experiments to study the extraction of nickel from lateritic ore by sulfatization using sulfuric acid, Hydrometallurgy, 56, 387-394.
  • LU, J., LIU,S., SHANGGUAN, J., DU, W., PAN, F. and YANG, S., 2013, The Effect of sodium sulfate on the hydrogen reduction process of nickel laterite, Minerals Engineering, 49, 154-164.
  • MCDONALD, R.G. and WHITTINGTON, B.I., 2008, Atmospheric acid leaching of nickel laterites review Part I. Sulfuric acid technologies, Hydrometallurgy, 91, 35–55.
  • MUDD, G., 2010, Global trends and issues in nickel mining: sulfides versus laterites, Ore Geol. Rev. 38, 9-26.
  • NEUDORF, D., 2007, Atmospheric Leaching Forum, ALTA 2007 Nickel/Cobalt 12. ALTA Metallurgical Services, Melbourne. 5 pp.
  • NORGATE, T. and JAHANSHAHI, S., 2010, Low grade ores-smelt, leach or concentrate?, Minerals Engineering, 23, 65-73.
  • NORGATE, T. and JAHANSHAHI, S., 2011, Assessing the energy and greenhouse gas footprints of nickel laterite processing, Minerals Engineering, 24, 698-707.
  • SWAMY, Y.V., KAR, B.B. and MOHANTY, J.K., 2003, Physico-chemical characterization and sulfatization roasting of low-grade nickeliferous laterites, Hydrometallurgy, 69, 89-98.
  • XU, Y., XIE, Y. and YAN, L., 2005, A new method for recovering valuable metals from low-grade nickeliferous oxide ores, Hydrometallurgy, 80, 280-285.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4a1ed824-f81d-46e9-83ff-73cd6a8aadaa
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