Nickel ore dispersion before flotation using different reagents was investigated on a bench scale to improve metallurgical recovery and selectivity. The nickel ore had a content of 0.8 pct nickel and 14.5 pct MgO. A positive linear correlation between MgO and Ni was found. Carboxy methyl cellulose, both pure and combined with …

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 pyrrhOlite. In general, moderate oxidation of a freshly ground ore promotes the flotability of all principal sulphides in the ore leading to a bulk flotation concentrate.

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. The project is jointly owned by OZ Minerals (70%) and Cassini Resources (30%). A pre-feasibility study (PFS) for the project was completed in February 2020, while a feasibility study (FS) is ...

A copper nickel sulfide ore in Xinjiang is taken as the research object, the combined process of copper selective flotation-magnetic separation of copper concentrate-copper/nickel bulk flotation of tailings for selective flotation was adopted to finally obtain a copper concentrate with Cu grade of 25.43%, recovery of 52.08%, Ni grade of 0.19%, …

New flotation reagents for sulphide nickel minerals flotation. ... (TBP) increased the copper recovery by 1.5–2% in the bulk concentrate as compared to the results obtained with potassium butyl xanthate on a rebellious copper-nickel ore containing 2.15–2.3% Cu and 1.04–1.1% Ni. However, the poor nickel floatability into the bulk ...

GOLD FLOTATION. The flotation process, which is today so extensively used for the concentration of base-metal sulphide ores and is finding increased use in many other fields. In 1932 flotation plants began to be installed for the treatment of gold and silver ores as a substitute for or in conjunction with cyanidation.

Download CSV Display Table. Aaltonen et al. ( 1980) studied the dissolution of a bulk Ni-Cu concentrate grading 5.4% Ni and 1.5% Cu in sulfuric acid and …

The invention discloses a flotation method of copper-nickel sulfide ore, which comprises the following steps: a. grinding and pulp mixing copper-nickel sulfide ore to obtain ore pulp; b. adding a sulfide mineral modifier into the ore pulp in the step a, wherein the sulfide mineral modifier comprises 1-10 parts by weight of soluble copper salt, 0-200 parts by …

The Kevitsa concentrator employs a copper–nickel sequential flotation circuit see Fig. 2. Cu is floated first with a Cu selective collector and a high pH (>12) is employed to reduce Ni flotation to copper concentrate. ... and integrated flotation with combined bulk and selective flotation. Various aspects are analyzed, such as the effect …

Since the bulk of the flotoactive sulphides is extracted as the result of between-bath flotation, during basic flotation pyrrhotite and talc are mostly extracted, 78% and 83% of each, respectively. ... The FTIR (DRIFT) and FT-Raman studies of the products of copper–nickel ore flotation have recorded the presence of goethite, iron sulphates ...

This report describes the results obtained from separating mattes smelted from Duluth Gabbro bulk flotation concentrates into copper-rich and nickel-rich fractions by mineral dressing techniques. In conventional processing of mixed sulfide ores of copper and nickel, the separation of copper from nickel begins in the ore beneficiation plant.

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 process, followed by copper and nickel separation. The sulphide ore will be divided into two types, namely pyrite-violarite (PV) and non-PV.

High Intensity Conditioning improved pentlandite flotation from a nickel ore. Specifically, High Intensity Conditioning increased the flotation rate of pentlandite contained in the 8 to 75 μm particle size range. ... In the past dozens of years, a mass of reports regarding the application of bulk nanobubbles in flotation has been emerging …

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 required level of MgO rejection (> 99.5%). Concentrate typically assayed about 20% Ni and had an Fe : MgO of about 3.

Most of the world's nickel is extracted from the mineral pentlandite, (Ni, Fe)9S8, which frequently oc-curs in ores containing predominantly pyrrhotite and various non-sulRdes, some of which contain magne-sium (Table 1). The nickel content in such sul Rde ores is generally low (0.2}3%) and varies from place to place in the same deposit.

Bulk flotation is a process where two or more valuable minerals with similar floatability are floated together as a bulk concentrate in the flotation system. The bulk flotation includes partial bulk flotation and full bulk flotation. The bulk concentrate can be separated by flotation or other methods to obtain a single concentrate as needed.

Differential flotation of bulk sulfide concentrates from Duluth gabbro into copper and nickel concentrates could be implemented by first destroying the hydrophobic coating with ozone and then by recovering the copper concentrate with a copper-selective collector. A number of parameters involved in the use of ozone, such as the sequence and the conditioning …

Bulk sulfide flotation is generally carried out on Western Australian nickel ores which tend to be low in copper and contain substantial concentrations of …

At our El Soldado copper mine in Chile, our new demonstration plant uses CPR technology in a novel way using the Hydrofloat™, which combines flotation with gravity concentration, allowing the flotation process to be changed to treat larger-diameter material and permit coarser grinding.

Nickel concentrate in flotation. Full size image. Flotation Process. Flotation process is the generic terms of the operations when slurry flows through, including grinding, classification, slurry mixing, and roughing, concentration, and scavenging operations in flotation. ... Besides bulk-oil flotation, froth flotation, skin flotation, and …

The mining grade of nickel sulfide ore is generally 0.3–2%. Copper-nickel bulk concentrate containing 4–8% nickel is usually selected by flotation. Some factories separate the bulk concentrate into nickel concentrate (containing about 10% nickel), copper concentrate, and pyrrhotite concentrate.

A series of batch flotation tests was performed on chalcopyrite-quartzite, on pyrrhotite-quartzite and on chahcopyrite-pyrrhotite-quartzite mixtures. ... A.S., 1985, "Use of ozone in the differential flotation of copper-nickel bulk sulfide concentrates," Minerals & Metallurgical Processing, Vol. 2, pp. 68–72. Google Scholar Li, X ., and ...

The bulk copper–lead flotation with depression of zinc followed by copper–lead separation and re-flotation of zinc is the most common practice in the treatment of copper–lead–zinc ores. About 90% of operating plants use this method. ... The reagent practice in the flotation of nickel and copper–nickel ores depends on three basic ...

Nickel sulphide ores containing pentlandite, pyrrhotite and talc have traditionally been treated by bulk sulphide flotation, an approach which seeks to …

optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, …

The flotation by surface sulphidisation of the oxidized copper-cobalt-bearing ore from Kimpe (1.97% Cu; 0.66% Co) was studied in order to evaluate its behavior by the analysis of its most ...

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).

Flotation feed size distribution The gersdorffite distribution by size for the ground flotation feed is given in Table 4. Note that in this table and subsequent tables and graphs the gersdorffite levels are calculated based on arsenic assays. These results show that after milling the bulk of the gersdorffite lies in a flotable size range.

The iron-to-magnesium ratio in the nickel concentrates destined for smelting is a key parameter that influences smelting temperature and slag viscosity (Mayhew et al. Citation 2013; Senior and Thomas Citation 2005), hence emphasis is placed on the rejection of Mg-bearing gangue during flotation of nickel sulfide ores (Lotter et al. …

One kilogram of ore, at -200 mesh was used as feed to the bulk flotation that was conducted for 8 minutes. Two collectors, independently added, were used at 3 different dosages: 20, 30, and 40 g/ton. The copper and zinc contents were determined as well as their respective recoveries in the bulk concentrate.