contain very low grades of nickel (0.6%) and copper (0.04}0.4%). The easily Soatable non-sulRde min- ... Developments in Flotation Flotation of Nickel Sulde Minerals ... cost pre-concentration phase to obtain a bulk sulRde concentrate. Effect of sulfur dioxide It is possible to effec-tively separate Cu}Ni ores from pyrrhotite gangue in ...
The reagent practice in the flotation of nickel and copper–nickel ores depends on three basic factors: mineralogy of the ore, flowsheet employed in the …
The procedure developed here represents a technically feasible way to separate bulk copper-nickel mattes from the Duluth Gabbro Complex into copper-rich …
The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance ...
The effect of the depressant galactomannan (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been investigated through microflotation, batch flotation and industrial flotation tests, zeta potential and infrared spectrum measurements. ... The Ni/Cu bulk flotation used 1 ...
The nickel content in the bioleach residue obtained at 30 °C was high. The bioleach residue of the copper-nickel concentrate obtained at 40 °C was characterized by lower nickel and higher copper contents. As mentioned above, an increase in the duration of bioleaching of the copper-nickel concentrate may reduce the nickel content in the …
After plastic flotation, the particle size, the dosages of collectors, frother, and activator were investigated and a copper concentrate assaying 53.5% Cu was obtained at the end of the copper ...
It should be added that segregation of laterite ores prior the flotation process has shown some improvement in upgrading nickel. The segregation process relies on the addition of calcium chloride or sodium chloride and carbon allowing the formation of nickel and iron chlorides at temperatures between 900 and 1150 °C. Iwasaki et al., …
Specially adapted nickel and copper tolerant strains of Thiobacillus ferrooxidans were found to enhance the nickel and copper dissolutions from bulk flotation concentrates and the nickel-tolerant strains could be …
BULK FLOTATION OF COMPLEX COPPER ORE FROM SIOCON, ZAMBOANGA DEL NORTE _____ An Undergraduate Thesis Presented to the Faculty of the Metallurgical Engineering Department College of Engineering MSU- Iligan Institute of Technology Iligan City _____ In Partial Fulfillment of the requirements for the degree of Bachelor of …
Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to be low in copper and contain substantial concentrations of magnesium bearing minerals and hydrophobic gangue such as talc (Bulatovic Citation 2007; Eltham and Tilyard Citation 1973; Pietrobon et al. Citation 1997).
In the case of copper minerals, the particles adhere to this froth, which is separated, whereas the great bulk of the useless material sinks to the bottom of the tanks. By varying the chemical conditions within the cells different results can be obtained, thereby making flotation highly selective in skilled hands.
The flotation study was carried out on copper-nickel ore to obtain bulk nickel-copper concentrate during flotation in the alkaline and acid media. The sample of the ore under study was dominated by amphibole, clinopyroxene, olivine, serpentine and chlorite, ore minerals included pentlandite, pyrrhotite, chalcopyrite, valleriite, and magnetite.
In this paper, the flotation behaviour of nickel-copper ores processed in the Sudbury area is discusse~ with emphasis on the effect of oxidation on individual minerals, pnmarily …
Table 1: Grade/recovery performance of a hypothetical copper ore flotation process. Product % Weight % Cu Assay Feed 100 2.09 Concentrate 10 20.0 Tailings 90 0.1 (a) From Table 1, the Ratio of Concentration can be calculated as F/C = 100/10 = 10. If only assays are available, the ratio of concentration equals (20 – 0.1)/(2.09 – 0.1) = 10 ...
The sulphides in the underflow could then be processed by bulk flotation at 25–30% solids in the hypersaline water 1 at the site to give an acceptable nickel recovery with the ... Investigation of removal MgO content from flotation concentrate of the nickel–copper ores in Jinchuan. E.J. Grimsey, I. Neuss (Eds.), Nickel '96, Mineral to ...
The dependence of the efficiency of biobeneficiation (via bioleaching) of bulk copper-nickel sulfide concentrates on the ratio of copper to nickel sulfide minerals was studied. The copper content in the concentrates ranged from 10.8 to 19.1% (copper occurred in chalcopyrite), while the content of nickel was within 4.6–9.5% (nickel …
The dominant challenge of current copper beneficiation plants is the low recoverability of oxide copper-bearing minerals associated with sulfide type ones. Furthermore, applying commonly used …
This article research a low grade ore in Jinping, it contain 0.634% nickel, 0.329% copper, 0.047% cobalt, 30.18% SiO2, and 19.72% MgO. The rude ore contain amount of gangue minerals such as chlorite, mica, quartz, feldspar, which are easily slimed and have undesirable effect on flotation. In order to decrease such negative effect, this article …
The West Musgrave copper-nickel project is an open-pit copper and nickel mine planned to be developed in the Musgrave Province of Western Australia. EB. ... before undergoing bulk rougher flotation, regrinding, and a two-stage bulk cleaning process for the production of copper and nickel concentrates. The resultant …
Pickett and Joe (1974) have found that water recycling in monometallic or bulk flotation circuits such as the nickel-copper mills in Sudbury area does not cause serious problems. However, this is not the case for multistage circuits where selective flotation needs to be achieved.
This process involved dissolution in one step of the base metals (copper and nickel) as well as the gold and PGMs. This was followed by solid–liquid separation, gold and PGM recovery, and conventional Cu SX/EW and recycling of the copper raffinate to the autoclave. ... Bulk sulfide flotation for further treatment (ultrafine grinding [UFG] or ...
cleaner flotation, and 500 cm3 for flotation separation of copper/nickel minerals, respectively. The The Cu/Ni bulk flotation used 1kg ore to obtain a Cu/Ni bulk concentrates.
The plant will use a bulk flotation circuit designed to produce separate copper and nickel concentrates. The circuit will feature bulk rougher flotation, regrinding and a two-stage bulk cleaning …
Flotation is the main mineral concentration technology used in the production of coal, copper, zinc, lead, nickel, molybdenum, and other metals. It is estimated that it is used for 85 % of ores mined. ... Optimal fractional bulk flotation circuit. Bulk stages are presented in blue, and selective stages are presented in green. ...
bulk flotation concentrate. The ease of individual mineral flotability under normal aeration conditions, which is chalcopyrite > pentlandite > ... concentrate feeds the copper/nickel separation column (column #1), producing copper concentrate and nickel-richtailings. The latter reports to the fmal nickel-copperconcentrate. The copper
Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to maximise nickel recovery and talc rejection but which does not reject pyrrhotite. ... (KGM) on the depression of talc and the flotation of a nickel–copper sulfide ore have been …
After acid bulk flotation, copper has been separated by flotation using conditioning of the pulp with a modified starch (dextrin) and lime at high pH to depress other ... Effect of calcium and thiosulfate ions on flotation selectivity of nickel–copper ores. Minerals Engineering, 15 (1) (2002), pp. 1-5. View PDF View article View in Scopus ...
The mineral composition of copper–cobalt ores is more complex than that of copper sulfides, and it is also difficult to discard tailing efficiently in primary flotation for the fine-grained disseminated of ore. In this work, a mineral liberation analyzer (MLA) was employed to study the characteristics of minerals. As a significant mineralogical …
