2014-01-14· grade and composition of chromite and laterite ores are the main factors to produce the alloy. The smelting of 10-13% SCO chromite ore and 87 90% LIM laterite ore produced alloys with average iron, nickel and chromium content about 82%, 6.22% and 2.17%, respectively, at an average iron, nickel and chromium recovery of 98%, 97% and 87%,
2017-10-17· 4 CHEMISTRY OF THE FE-NI LATERITE ORES 4.1 Whole ore chemistry The Fe-Ni-laterite deposits of Kastoria and Palaio-chori (Grevena) exhibit major differences in both whole rock analysis and compositional variation of the chromite grains in the ore, although they have common characteristics of in situ deposits. The SiO 2, Al 2O 3, CaO, MgO, and TiO
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Laterite causes the concentration of metals/ore deposits of Ni–Cu–Co–PGE, Au, Al, Fe, and Mn by the action of a paleoclimatic environment, and occurs within the regolith (the layer of soft/fragile/loose, heterogeneous superficial material covering solid rock).
The lack of any significant Mn, Zn, Co enrichment in ferrianchromite along cracks and peripheral parts of chromite within (a) serpentinized ultramafic rocks, in general, (b) weathering crusts, with the exception of the saprolite zone overlying by the Ni-laterite ore in the Kastoria deposit, and (c) certain Ni-laterite deposits lying on saprolite zones, like the deposits of Paleochori-Grevena
TY JOUR. T1 MINERAL PROCESSING BEHAVIORS OF CHROMITE CONTAINED IN LATERITE FUNDAMENTAL STUDIES ON MINERAL PROCESSING OF CHROMITES (2ND REPORT). AU Harada, Taneomi. AU Owada, Shuji. PY 1984/1/1. Y1 1984/1/1. N2 Degree of separation, grindability, zeta-potential, floatability, and magnetic property of chromite in the lateritic nickel-leached
Chromite is the most important chromium ore mineral. It forms a complete solid solution series with many other members of the group, eg. in the Chromite-Hercynite Series, Chromite-Spinel Series, Chromite-Magnetite Series and the Chromite-Magnesiochromite Series.It is the iron analogue of Zincochromite, Cochromite, Manganochromite and Magnesiochromite and the Cr analogue of
TY JOUR. T1 MINERAL PROCESSING BEHAVIORS OF CHROMITE CONTAINED IN LATERITE FUNDAMENTAL STUDIES ON MINERAL PROCESSING OF CHROMITES (2ND REPORT). AU Harada, Taneomi. AU Owada, Shuji. PY 1984/1/1. Y1 1984/1/1. N2 Degree of separation, grindability, zeta-potential, floatability, and magnetic property of chromite in the lateritic nickel
Two abandoned chromite small-scale mining areas were investigated, the Catmonan and East Maraquing where remnants of chromite ore fragments littered around the vicinities have been observed. Based on float, chromite occurs in the form of massive, disseminated and banded localized in the serpentinized dunitic country rock intercalated with the harzburgite.
TY JOUR. T1 Mineralogical properties and fundamental mineral processing behaviour of the chromite contained in laterite leach residue. AU Owada, Shuji. AU Harada, Taneomi. PY 1987/5. Y1 1987/5. N2 In order to utilize chromite in the laterite residue discharged from the large-scale Ni-leaching plant in the Philippines, its state of distribution, mineralogical properties
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FERRO NICKEL ORE- A recent development in the extraction of nickel laterite ores is a particular grade of tropical deposits, typified by examples at Acoje in the Philippines. This ore is so rich in limonite (generally grading 47% to 59% iron, 0.8 to 1.5% nickel and trace cobalt) that it is essentially similar to low-grade iron ore.
Chromite and laterite ores from local sources were smelted in a vertical tube furnace with activated carbon as reducing agent at 1400°C to 1550°C using graphite crucible under argon atmosphere. It is shown that the grade and composition of the ore are the main factors determining the feasibility of smelting a mixture of chromite and laterite ores to produce a Fe-Ni-Cr crude alloy.
The mineralogy of the transported Fe-Ni-Cr-laterite ore bodies from the Edessa area in Northern Greece was studied. The special emphasis was on the textural features and chemistry of chromite. The chromite was residually inherited in laterites from weathered ultramafic rocks and it displays zonation. Three main zones were optically distinguished: an inner chromite zone, an intermediate