Flotability of Chalcopyrite from the Rudnik Deposit

Abstract This paper presents a part of the results from flotation concentration examination of pure chalcopyrite mineral from the deposit of the mine Rudnik in the frothless cell. The examinations were performed in seven series. In the first three series, the conditions under which the recovery of chalcopyrite from the Rudnik …

Highly selective flotation separation of chalcopyrite and …

Obviously, to reduce the consumption of large amounts of alkaline reagents (such as lime) in flotation plants, the flotation of chalcopyrite at over-high pH was undesirable. While for MDPE, it maintained an outstanding flotation ability towards chalcopyrite and hardly collected pyrite under slightly alkaline conditions (pH = 8.5).

Full article: Understanding the Effects of Hydrophobic …

1. Introduction. One of the major challenges faced by the resources industry is the poor separation of fine gangue particles from value particles in froth flotation (Wills and Finch Citation 2016).In a flotation cell, normally the value particles are rendered hydrophobic and then attach to air bubbles and rise to the top of the flotation cell as …

Effect of Na2SO3 on the floatability of chalcopyrite and enargite

The effect of sodium sulfite (Na 2 SO 3) on the floatability of chalcopyrite and enargite was investigated in this work.The micro flotation tests of single and mixed minerals were performed under various concentrations of Na 2 SO 3.The micro flotation tests of single minerals showed that Na 2 SO 3 depressed the floatability of both …

Eco-Friendly and Biodegradable Depressants in Chalcopyrite Flotation…

The flotation experiment results showed that at pH 3–8, TG had a significant selective depressive effect on chalcopyrite flotation and it was enhanced with increasing TG concentration, but ...

Processing of chalcopyrite ore by heap leaching and flotation

This is despite piloting and plant trials by Rio Tinto, BHP Billiton, and Freeport-McMoRan (Caro and Ekenes, 2012, Smithson et al., 2007, Schlitt, 2006). ... This study showed how the copper metal value typically lost to chalcopyrite flotation tailings could be reduced by capturing some of that non-floatable copper through prior partial ...

Copper minerals flotation in flotation plant of the "Rudnik" …

The influence of amount of flotation reagents on the efficiency of copper ore flotation in standard laboratory experiments was investigated. The aim of the study was to evaluate the effect of collector and frother amount on the selectivity of copper upgrading during flotation process of dolomite-shale ore from Fore-Sudetic Monocline area (Legnica-Glogow …

Minerals | Free Full-Text | Utilization of PMA-EDTC as a Novel …

To address the issue of mediocre separation efficiency of depressants in the copper-lead separation process, this article synthesized a macromolecular organic depressant, polymaleic anhydride-ethylenediaminetetraacetic acid (PMA–EDTC), using a polycarboxylic macromolecule as the backbone and also introducing –N–(C=S)–S– as …

Identifying true collectorless flotation of chalcopyrite in …

Fig. 2 shows the true flotation recoveries of chalcopyrite and water recoveries from flotation in CaCl 2 solutions with varying concentrations. As can be found, the true …

Fundamental and flotation techniques assessing the effect …

Fig. 3 shows that in the first 4 min of flotation, the recovery of galena is generally the same across the various water qualities, however after 5 min of flotation it becomes clear that higher galena recoveries are achieved with synthetic plant water of increasing ionic strength. This trend of an increase in particles recovered with increasing ...

A Quantitative Relationship between Oxidation Index and Chalcopyrite …

Chalcopyrite, as the most abundant and widespread copper-bearing mineral (accounting for nearly 70% of the Earth's copper), is a primary source of copper [1,2,3].Froth flotation is the most often used method to obtain chalcopyrite from natural ores due to its natural floatability stemming from different surface properties …

Interface behavior of chalcopyrite during flotation from …

The flotation test of the cyanide tailings was performed using a suspended flotation cell (XFDIV 1.0, Jilin Explora-tion Machinery Plant Co., Ltd., China). The pulp density was 30wt%, and the flotation water was deionized water. The pH of the mineral suspension was first adjusted to the desired value by adding concentrated NaOH or H2SO4 stock ...

Identifying true collectorless flotation of chalcopyrite in …

1. Introduction. In mineral processing, water is an important medium employed for the conveyance and separation of solid particles, particularly in flotation plants (Michaux et al., 2018).The flotation process requires a substantial amount of water, typically ranging from 3 to 7 tons to float 1 ton of ores, thereby being classified as a …

Highly selective flotation separation of chalcopyrite and …

Obviously, to reduce the consumption of large amounts of alkaline reagents (such as lime) in flotation plants, the flotation of chalcopyrite at over-high pH was …

Chalcopyrite

Chalcopyrite is a copper iron sulfide (CuFeS 2) mineral with a brassy to golden yellow color (Fig. 1.36). Chalcopyrite contains 34.5% Cu, 30.5% Fe, and 35.0% S. The mineral is the principal source of copper metal, and one of the major source of sulfur. The mineral also contains traces of elements of gold and nickel and recovered in refinery.

Flotation data for the design of process plants Part 2

disseminated chalcopyrite, sphalerite, galena and tetrahedrite. The flotation plant design was based on extensive benchscale test work (including locked cycle tests) on drill core and many months of operation of a 30 t h2 1 pilot plant using the modified Cleveland Tin Mine processing plant.

Selective separation of chalcopyrite and talc using pullulan …

As a gangue mineral, talc is usually associated with chalcopyrite.Therefore, the depression of talc is required in the field of sulphide mineral flotation.Herein, the depression mechanism of pullulan in the flotation separation of chalcopyrite from talc was investigated via flotation tests and characterisation techniques, such as Fourier …

Selective Separation of Chalcopyrite from Pyrite

Flotation separation of chalcopyrite from pyrite using lime or cyanides as depressants results in serious problems, such as the blockage of pipelines and environmental pollution. Eco-friendly organics are a future trend for beneficiation plants. In this research, the eco-friendly organic depressant sodium humate (SH) was chosen as a …

Machine learning strategies for control of flotation plants

A high throughput screening model of solidophilic flotation reagents for chalcopyrite based on quantum chemistry calculations and machine learning. 2022, Minerals Engineering. ... 3498 raw data from a real-world froth flotation plant were collected, wrangled, and restructured. A designed loss function was embedded in …

Chalcopyrite Floatability in Flotation Plant of the Rudnik …

Part of large-scale industrial test results of milling fineness influence on lead, copper and zinc minerals flotation results in the Rudnik flotation plant are shown in …

An efficient chalcopyrite depressant for Cu-Mo separation …

1. Introduction. Chalcopyrite and molybdenite are primary sources of Cu and Mo. It has been reported that more than 50% of Cu and 75% of Mo originated from Cu-Mo porphyry ores worldwide [1], [2], [3], in which chalcopyrite and molybdenite coexist closely [4], [5].Thus, the efficient separation of these minerals is crucial to satisfy the high …

A review of pyrrhotite flotation chemistry in the processing …

Introduction. Pyrrhotite is one of the most abundant iron sulfide minerals. It is found in nature to be commonly associated with pentlandite, quartz, ankerite (CaFe(CO 3) 2), pyrite, chalcopyrite, and other sulfide minerals.In many flotation plants, pyrrhotite is rejected to the flotation tailings as a waste product such as in the case of Cu–Ni ores …

Effect of low dissolved oxygen on chalcopyrite-molybdenite …

In the present study, a flotation plant is designed and assembled to simulate the flotation of chalcopyrite at high altitudes by controlling the partial pressures of N 2 /O 2 and DO under different altitude conditions, using the DO value as a standard. UV/VIS, electrochemical, and contact angle measurements were used to reveal the …

Flotation separation of pyrite and chalcopyrite with …

The separation of chalcopyrite and pyite is not fully solved, and thus more efficient depressants are still needed in industry. This paper used potassium permanganate (KMnO 4) as a pyrite depressant to separate pyrite from chalcopyrite.Flotation and contact angle results indicated that pyrite could be depressed by KMnO 4 at pH 7, while …

Enhancing flotation separation of chalcopyrite and …

Figure 3 showed the effect of PAAS dosage on the flotation behavior of chalcopyrite, serpentine and talc. The experiment was carried out at pH 7. It can be seen from Fig. 3 that the dispersant ...

Mechanism of Mechanical Entrainment in Chalcopyrite …

One of the problems in flotation is mechanical entrainment and the other is the presence of complex gangues (especially clay minerals). In the present study, it was …

Froth Flotation of Chalcopyrite/Pyrite Ore: A Critical Review