A complex copper-lead-zinc sulfide ore from a mine in the Iberian belt was used in the flotation tests. The chemical composition of the ore was given in Table 1. …

We proceeded from the amount of reagents (xanthate—170 g/ton, aerofloat—120 g/ton, sodium carbonate—2000 g/ton, copper sulphate—50 g/ton) consumed per 1 ton of the copper–nickel ore at a sulphide content of 10%. Flotation was conducted in a sodium carbonate solution with a small amount of copper sulphate (pulp …

The rougher flotation and closed-circuit flotation tests of copper-nickel sulfide ore (1.0 kg) were performed on XFD-63 type flotation machines of different capacities (3.0 L, 1.0 L, obtained from Wuhan Exploration Machinery Co., Ltd.) [5], with mechanically stirring speed of 1610 rpm.The 3.0 L cell was used for rougher and …

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 conventional methodologies does not allow the interactional effects of critical parameters in the flotation processes to be investigated, …

This paper presents both the fundamentals of sulphide mineral flotation and the practical aspects of sulphide ore flotation. The fundamental aspects of the flotation of sulphide minerals both in the absence and presence of thiol collectors are discussed in relation to their crystal structure, surface chemistry and electrochemical characteristics.

The minerals' composition and association, grain distribution, and liberation within the ore samples were analyzed in the feed, concentrate, and the tailings of the …

the flotation recovery of Ni, Cu and Co from a nickel-copper sulphide ore. The effect on flotation performance of various parameters such as pH, collector dosage, % solids and depressant dosage at different levels was investigated. Therefore, the main objective of the study was to optimize the process parameters for the flotation of base metals ...

Sulfide ores are generally processed using pyrometallurgy, the extraction and purification of metals by processes involving the application of heat. This process uses a series of physical steps and high temperatures to extract and purify copper from copper sulfide ores, in four basic steps: 1) froth flotation, 2) thickening, 3) smelting, and 4 ...

The objective of this review is to present a summary of the current knowledge on the subject of seawater flotation processes, highlighting the copper …

Biosolids and humic acids may be used as flotation reagents of copper sulphide ores. We determine indicators such as copper recovery and copper …

Collector type and pulp pH play an important role in the lead–zinc ore flotation process. In the current study, the effect of pulp pH and the collector type parameters on the galena and ...

Porphyry ores and E-wastes/WEEE are two of the most important copper-bearing materials on the planet. Over 60% of world copper output comes from porphyry copper ores while E-waste(s) is globally ...

Figure 1 shows an example of the most common porphyry copper ore type beneficiation flowsheet. Porphyry ores, although generally contain small amount of copper below 1%, belong to easy-to-float ...

As part of a study investigating the influence of mineralogical variability in a sediment hosted copper–cobalt deposit in the Democratic Republic of Congo on flotation performance, the flotation of nine sulphide ore samples was investigated through laboratory batch kinetics tests and quantitative mineral analyses. Using a range of ore …

copper ore and flotation reagents on the process of its processing [2-9], and the features of the flotation agent fixing mechanism on the mineral surface [10-13]. The purpose of this work is to study the flotation behavior of sulfide copper ore using sodium diisopropyldithiophosphate as a collector, to study the structure and composition of the ore

The copper recovery (85.9%) and copper grade (6.7%) of a rougher concentrate obtained using humic acids as main collector for the flotation of a copper sulphide ore from Chile, were very similar to those of a copper concentrate produced by froth flotation under the same conditions with a xanthate type commercial collector.

The results showed an optimum flotation condition at dosages of 80 g/t, 30g/t, and 150 g/t of collector, frother, and dispersant respectively: with copper recovery …

The present investigation has studied the respective roles of sodium iso-propyl xanthate (SIPX) sodium di-ethyldithiophosphate (DTP) and alkyl hydroxamate in …

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 …

Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are separated as tailings.

Kansanshi copper mine is situated in the north western province of Zambia. As a result of the mineral variations, the processing plant treats three distinct ore types, viz. oxide, sulphide and mixed.

Flotation is a common mineral processing method used to upgrade copper sulfide ores; in this method, copper sulfide mineral particles are concentrated in froth, and associated gangue minerals are ...

Surface oxidation of secondary minerals, such as chalcocite, bornite and digenite, present in the Salobo copper ore makes their flotation difficult and requires excessive reagent consumptions. Two possibilities for reducing the collector and fr other additions were investigated. These were sulfidization of the pulp prior toflotation and …

The flotation of complex sulfide copper ores Complex ore are often characterized by particularly fine intergrowth of the mineral values. Due to this specific mineralogical characteristic, it is necessary to finely grind and concentrate ore prior to the solubilization of valuable metals (Makita, et.al. 2010). Apart from high energy consumption ...

The objective of this review is to present a summary of the current knowledge on the subject of seawater flotation processes, highlighting the copper sulphide ores flotation. This review includes a description of the underlying flotation mechanisms affected by the presence of saline water and seawater, as well as a more …

Problems arising during flotation of complex Cu-Pb-Zn sulphide ores are in general of geological origin. The features of these ores are reviewed, stressing that mineralogical studies extending to process mineralogy are prerequisite for a consistent flotation process.

Bulk flotation experiments with Zambian copper-cobalt sulphide ore showed superior flotation performance, with improved kinetics, when using Sodium Ethyl Xanthate () as a collector instead of a blend of alkyl dithiophosphate and thionocarbamate collectors, with copper sulphides floating more rapidly than cobalt sulphides (Mainza et …

1. Introduction. The use of NaHSO 3 as a flotation depressant (Forssberg et al., 1993, Gül, 2007) is being practiced in selective flotation of sulphide minerals.The depressing effect of sodium bisulphite generally increases from copper sulphides to galena, pyrite and sphalerite (Peres, 1981).However, there is no common agreement about the …

Copper sulfide ores must be concentrated before they can be economically transported and smelted. The universal technique for this concentration is froth flotation of finely ground ore. ... Flotation of sulphide concentrate as described above. Flotation of separate oxide concentrate as described below

The increasing complexity of ore deposits, declining ore grades and higher global demand for copper has resulted in increased ore processing by flotation plants …