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

Copper Nickel Flotation - 911 Metallurgist

 — The values for nickel, copper, and cobalt used in this study were 11.43, 5.85, and 67.58 USD/kg for each metal, respectively. This was based on January 2018 spot prices and a 15% discount factor to account for the intermediate nature of the product. ... Flotation Effects of copper sulphate, grinding (polish and finer grinding), pulp pH ...

 — A nickel-copper sulfide system usually coexists with serpentine in deposits. Low nickel-copper recovery and high content of serpentine in concentration adversely affects subsequent metallurgical …

In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. The effects of these parameters at three different levels ...

 — The present study initially investigates the kinetics of microwave-assisted grinding and flotation in a porphyry copper deposit. Kinetic tests were conducted on untreated and microwave-irradiated samples by varying the exposure time from 15 to 150 s. Optical microscopy, energy-dispersive X-ray spectroscopy, and scanning electron …

 — Cobalt is a valuable by-product obtained from processing of nickel–copper sulphide ores. From the nickel and cobalt assays of flotation products, cumulative recoveries of respective metals were estimated and plotted against each other in Fig. 2. As can be seen, all data points fall on the same line showing a 1:1 ratio between recoveries …

 — Abstract. In our study we investigated a refractory copper-nickel sulfide ore separation by using a cyclonic-static micro-bubble flotation column (FCSMC). The …

 — ABSTRACT. The extraction of nickel (Ni) from sulfide resources commences with flotation to produce a concentrate which is then smelted to produce a nickel-enriched phase called matte, and further refined to produce pure Ni products as well as by-products, such as cobalt (Co), copper (Cu) and precious metals.

 — However, when the flotation results are considered, it is evident that xanthate adsorption alone does not explain the combined effect of the ions. For example, thiosulfate reduced the activating effect of calcium in nickel flotation but increased it in copper flotation, in region where galvanic interaction with mill iron was effective.

 — Copper and nickel minerals are separated by sequential flotation. Copper is floated first, and the copper scavenger tails is the feed to nickel flotation. Finally, …

 — The principal technological scheme of flotation includes copper–nickel and nickel–pyrrhotite flotation cycles, the selection of a copper–nickel concentrate into a …

 — 20 wt % where recoveries of nickel and copper at 20 wt % density were higher than nickel and copper recoveries of 40 wt % density As an example, Cu recovery increased from 70% to 82% when the pulp

 — 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 copper-nickel mixed flotation uses ammonium butyrate black medicine and Z-200 as collectors, YB-5 as inhibitor, and copper sulfate as an activator. Through the process, ...

 — Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of the mills has continually been improved to increase production while reducing operating and maintenance costs. Also, considerable attention is paid to automatic sensing devices …

 — 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 flotation results indicated that KGM had a straining …

 — In this paper, ion flotation method is employed to remove metal ions such as copper, lead, zinc, cadmium and nickel from aqueous solution. Firstly, several parameters such as pH, concentration and ...

 — The flotation of copper, nickel iron and cobalt ions with PPKO into SDS has been investigated. Analytes extractions were shown to be achieved with PPKO due to the hydrophobic complex compound formation. The sensitivity, metrological characteristics, ecological safety, simplicity, and convenience of the suggested procedure are …

 — 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., (1961) and …

 — The pH of recycled process water, copper flotation feed, and nickel flotation feed dropped by 0.7, 0.4, and 0.7 points, respectively, from May to July. The oxygen demand increased from recycled ...

This paper presents the influences on the entrainment of serpentines by grinding and reagents during copper–nickel sulfide flotation. The previous bench flotation tests were performed to extract the … Expand

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 treatment of a specific ore, and degree of liberation. The presence of hydrophobic gangue represents a major problem in the treatment of both nickel and copper–nickel ores.

Separation of Copper-Nickel by Flotation and Magnetic Methods

In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore. The parameters investigated include collector dosage, percentage solids, depressant dosage and pH. The effects of these parameters at three different levels ...

 — Recovery was 59.9% to a concentrate assaying 20.9% Ni and having an Fe. : MgO of 2.77.. More than 70% of the nickel loss was to the so-called sands tailings which was a combination of tailings from sands rougher–scavenger flotation and …

 — 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 flotation results indicated that KGM had a straining …

 — A high frother concentration produces an excessive amount of froth in the flotation cell. This increases the froth overflow and flotation rate, but, unfortunately it also decreases the concentrate grade. Collector concentration has a significant effect (either linear or non-linear) on all three quantitative response variables.

 — In this study, the robust Taguchi experimental design method was used to determine the optimum conditions for the flotation of nickel, copper and cobalt from a nickel-copper sulphide ore.

 — Nickel, copper, cobalt, iron, ... Sulfide ores are crushed and ground in order to liberate nickel minerals by selective flotation, in place of, or in conjunction with magnetic separators. After that, nickel concentrate (containing 6–20% Ni) can be collected. The enriched concentrate contains fuel composition in the form of iron sulfide, which ...