Highly Efficient Beneficiation of Low-Grade Iron Ore via Ore–Coal Composite-Fed Rotary Kiln Reduction: Pilot-Scale Study
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DOI: 10.1007/s11837-020-04053-3
Abstract: Direct reduction of low-grade iron ore pelleted with coal was investigated using a pilot-scale rotary kiln. The evolution of the iron minerals, the strength of the pellets, and the emission characteristics were measured. The results… read more here.
Keywords: reduction; grade; iron ore; rotary kiln ... See more keywords
Reduction roasting and bioleaching of a limonite ore
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DOI: 10.1016/j.hydromet.2021.105554
Abstract: Abstract Two of the main challenges presented by the implementation of nickel laterites atmospheric acid leaching are: (i) high acid consumption and (ii) high final iron concentrations in the PLS. In the current work, a… read more here.
Keywords: reduction roasting; bioleaching limonite; roasting bioleaching; reduction ... See more keywords
Surfactant-assistant atmospheric acid leaching of laterite ore for the improvement of leaching efficiency of nickel and cobalt
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cleaner Production"
DOI: 10.1016/j.jclepro.2019.04.305
Abstract: Abstract Atmospheric acid leaching has attracted great attention from scientists due to the mild leaching conditions. However, the leaching efficiency of nickel is lower than that using high pressure acid leaching. Herein, we report the… read more here.
Keywords: atmospheric acid; ore; leaching efficiency; acid leaching ... See more keywords
Effect of surface oxidation on the flotation response of enargite in a complex ore system
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DOI: 10.1016/j.mineng.2018.01.024
Abstract: Abstract In previous study, the selective separation of enargite from complex ore samples in a batch flotation system under controlled pulp potential was investigated (Tayebi-Khorami et al., 2017b). It has been found that it is… read more here.
Keywords: complex ore; system; enargite complex; flotation ... See more keywords
Stepwise recovery of magnesium from low-grade ludwigite ore based on innovative and clean technological route
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DOI: 10.1016/s1003-6326(18)64884-8
Abstract: Abstract A novel and clean technological route for the comprehensive utilization of low-grade ludwigite ore was proposed, in which magnesium was extracted by metallizing reduction-magnetic separation, sulfuric acid leaching and ethanol precipitation operation. Meanwhile, iron-rich… read more here.
Keywords: clean technological; grade ludwigite; magnesium; ore ... See more keywords
Specific Features of Iron Ore Mining in Gornaya Shoria
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DOI: 10.1134/s1062739117052898
Abstract: The complex geological conditions and geomechanical behavior of rock mass at the Tashtagol, Sheregesh and Kaz deposits induce geodynamic events during transition to deeper level mining. Mining advance from the higher stress concentration areas in… read more here.
Keywords: mining; iron ore; features iron; ore ... See more keywords
The Role of Continental Crust in the Formation of Uraninite-Based Ore Deposits
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DOI: 10.3390/min10020136
Abstract: This study reports trace element abundances and Pb, Sr, and U isotopic signatures of uraninite from a variety of ore deposits in order to establish baseline forensic information for source attribution of raw, natural U-rich… read more here.
Keywords: continental crust; role continental; formation; ore ... See more keywords
Factors Controlling Hydrothermal Nickel and Cobalt Mineralization—Some Suggestions from Historical Ore Deposits in Italy
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DOI: 10.3390/min9070429
Abstract: We compare three poorly known, historical Ni–Co-bearing hydrothermal deposits in different geological settings in Italy: The Ni–Co–As–Sb–Au-bearing Arburese vein system (SW Sardinia), the Co–Ni–As-rich Usseglio vein system (Piedmont), and the small Cu–Ag–Co–Ni–Pb–Te–Se stockwork at Piazza… read more here.
Keywords: piazza; mineralization; vein system; vein ... See more keywords