(PDF) Flotation of an Oxidized Copper Sulfide Ore
The aim of this study was the recovery of copper from the oxide copper ore by froth flotation and agitating sulphuric acid (H2SO4) leaching. The ore with 4.21% copper grade used in this study was ...
A New Technique for Recovering Copper From Complex Copper Oxide Ore …
Copper oxide ore has a complex composition, and a low recovery rate is often achieved via the traditional sorting method. A new combined process of flotation–high-gradient magnetic separation–leaching is proposed here to recover copper minerals. The test results showed that the flotation process was successful when using …
Estimated Water Requirements for the …
This flotation slurry, also referred to as pulp, contains from 25 to 40 percent solids. After the series of concentration steps, the final copper concentrate is sent to thickeners and …
Chloride leaching of silver and lead from a solid residue …
The content of silver in copper and iron sulfides may be in the range from 0.7 to 2.7% by volume. 898 T. Chmielewski, K. Gibas, K. Borowski, Z. Adamski, B. Wozniak, A. Muszer
1 Froth Flotation – Fundamental Principles
Problem: A copper ore initially contains 2.09% Cu. After carrying out a froth flotation separation, the products are as shown in Table 1. Using this data, calculate: (a) Ratio of …
pH/ORP measurement Copper flotation process
mineral such as copper, nickel, molybdenum or zinc from ore. Flotation can separate this mineral from waste materials or from another mineral. The process starts with crushed ore. A ball mill receives the crushed ore and reduces its particle size to the consistency of sand. Next, the ground ore from the mill travels as a high solid slurry to a
Copper Ore Processing Plants, Flow And Equipment
Copper industrial minerals include: natural copper, chalcopyrite, chalcocite, tetrahedrite, azurite, malachite, etc. Chalcopyrite (a compound of copper, sulfur, and iron) is mined mainly, followed by chalcocite and bornite. If copper ore wants to be fully utilized, it must be processed by flotation. Flotation separation is an important copper ore …
Adsorption and flotation of copper sulfide ore with
copper ore and flotation reagents on the process of its processing [2-9], and the features of the flotation ... after the separation of the solid phase by the solution of copper (II) sulfate, Cu2S was used as the indicator electrode [14]. 1 g of ore was immersed ... the average copper content in the ore is 1.99%, and accordingly refers to the ...
Metallurgical evaluation of copper ore flotation …
biosurfactant with pure copper minerals was also assessed by particle surface analysis. In the second part of the paper, the effect of biosurfactant on gangue minerals in copper ore flotation system has been investigated and analyzed in detail. 2. Materials and methods 2.1. Biosurfactant production and characterization 2.1.1.
The Critical Role of Pulp Density on Flotation …
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 …
Behavior of talc and mica in copper ore flotation | Request …
The copper flotation grade was reduced in the presence of high amount (30%) of muscovite due to the entrainment, but its effect on the copper recovery was negligible. Discover the world's research ...
Minerals | Free Full-Text | Flotation of Copper Ores …
Copper ores contain not only valuable minerals such as chalcopyrite and sphalerite but also gangue minerals such as pyrite—a major gangue mineral of sulfide ores. The presence …
Flotation of copper oxide minerals: A review
1. Introduction. The continuous development of the global economy has resulted in a high demand for copper production and high copper consumption [1], [2], and exploitation and effective use of copper oxide mineral resources have attracted attention [3].Copper oxide deposits evolve from shallow copper sulfide deposits after …
Maximise pyrite depression in copper ore flotation using high …
The effect of pH, solid content, water chemistry and ore mineralogy on the galvanic interactions between chalcopyrite and pyrite and steel balls Frontiers of Chemical Science and Engineering, 2013 Copper–molybdenum ores flotation in …
Multidimensional Analysis of Copper Ore Flotation in …
The testing material was a sample of Polish copper ore which was taken from ZG Polkowice KGHM Polska Miedź S.A. For flotation tests a sandstone type was used, which was previously separated from the raw material and then it was crushed and classified to obtain a 40–71 μm size fraction. The copper content in sandstone type was equal to …
The effect of frother type and dosage on flotation
From a set of 22 products, 4 stood out as viable alternatives for the gold and copper ore flotation, indicating metallurgical recovery improvement in lab scale flotation tests. View Show abstract
Behavior of talc and mica in copper ore flotation
The copper ore sample was obtained from Northparkes Copper & Gold Mine, Australia. This ore was chosen due to its relatively unproblematic flotation characteristics. Such an ore provides a formidable baseline for the identification of the deleterious effects of clays. The chemical assays of the ore sample contains 0.5% Cu, …
Exploring the effect of pulp aeration and lime-aid grinding …
The traditional high alkaline process (HAP) always encounters challenges in handling pyrrhotite-rich type copper sulfide ore, especially the slow copper flotation rate and the unsatisfactory separation efficiency. In this study, HAP was optimized via pulp aeration and lime-aid grinding, and their beneficial effect was studied systematically.
A successful operational initiative in copper oxide …
Zarigan mixed oxide-sulfide complex ore (Yazd province, Iran) contains 6.12% Pb, 0.87% Zn, 47.27% Fe2O3, and 27.18% SiO2. In the present paper, the possibility of lead concentration from the ore ...
Influence of collector dosage and pulp chemistry on copper flotation
Comparing the two low and high pyritic ore types, it is found that in the high pyritic feed total floated free chalcopyrite decreases by 1.15%, while it is compensated by an increase in CP/PY and ...
Development of copper recovery process from flotation …
The total copper recovered from its ore through flotation process is about 56% [6, 18], which indicates that the flotation tailings still contain valuable copper components such as chalcopyrite. In addition, old flotation tailings sometimes have a higher copper grade (0.2–0.4%) than that of low‒grade ores (0.2‒0.3%).
Current Situation on Flotation of Cu-Pb-Zn Sulfide Ore
of copper and lead - separation of copper and lead - zinc flotation from tailings", a flotation test to a polymetallic ore was carrried out [5] . The final products with the recovery of 73.21% Cu ...
(PDF) Investigation of flotation parameters for …
Potassium ethyl xanthate has been reported to have enhanced hydrophobicity and promotion of bubbles in the flotation of low-grade copper ore [10, 22]. It has been reported that the total loss of ...
Copper Ore
The common reagents for copper ore flotation are xanthates as collector, pine oil as frother, sodium cyanide as depressant, and lime to maintain slurry alkalinity. The concentrate in the form of froth and slurry contains +20% copper. It is thickened in a rake-type unit from a level of 30% solid content to 60%.
Effects of particle size on flotation performance in the separation …
In the flotation tests, potassium dichromate (K 2 Cr 2 O 7), sodium diethyldithiocarbamate (DDTC) and methyl isobutyl carbinol (MIBC) were separately used as the lead depressant, the copper collector and frother.All reagents for tests are analytical grade. Tap water was used for the lab flotation tests. The chemical analysis results of …
Recovery Cu from a Copper Oxide Ore by Flotation and Leaching
The copper oxide ore is high oxidation ratio and the high combination ratio with a low grade of Cu 0.71%. Copper concentrate of Cu 15.02% with a recovery of 38.55% was obtained by flotation.
Characteristics of Gold Minerals in Gold Concentrate …
The presence of copper minerals during the cyanidation leaching of copper-bearing gold ores has various disadvantages. Approximately 30 kg/t of NaCN is consumed when the copper mass fraction in the leaching feed is 1% [9]; therefore, it is expensive to isolate gold from gold ores and concentrates with high copper content via direct …
Maximise pyrite depression in copper ore flotation …
The combination of Hi-Cr grinding media and the addition of 100 g/t MBS in flotation almost completely depressed pyrite in flotation using high salinity water due to the high pulp potential maintained and the strong oxidant generated from the …
The Importance of pH in Flotation
In flotation, pH control is a vital method to control selective mineral separation. A standard depressant that is used is an Alkali. An Alkali is any substance that when mixed with Acid will neutralize each other and form a new chemical substance called a BASE. This is very important.
Flotation of Copper Ores with High Cu/Zn Ratio: Effects …
T.; et al. Flotation of Copper Ores with High Cu/Zn Ratio: Effects of Pyrite on Cu/Zn Separation and an Efficient Method to Enhance Sphalerite Depression. Minerals 2022, …
(PDF) Copper Recovery from Silicate-Containing Low-Grade Copper Ore …
Copper Recovery from Silicate-Containing Low-Grade Copper Ore Using Flotation Followed by High-Pressure Oxidative Leaching 13 V ol. 64, No. 1 ( 2017 ) tilled water by high-pressure oxidation leach-
Investigating the first-order flotation kinetics models
However, increasing solid content does not always have beneficial effects on the process, and exceeding the optimal range of solid percent leads to a decrease in the flotation recovery (Azizi et ...
Flotation of an Oxidized Copper Sulfide Ore
The sample contained: 1.99 % Cu, 6.3 % Fe, 1.64 ppm Au, 8.57 ppm Ag, 13.9 ppm Pb, and 129 ppm Zn. After desliming, the flotation feed assayed 2.7% Cu having about 98% of the copper content in the ...
Improving Flocculation Performance of Copper …
For instance, the flotation process is performed with water containing 25–35% wt solid ratio and is consumed 1.9–3 m 3 water per ton of ore processed …
Upgrading of talc-bearing copper-nickel sulfide ore by froth flotation …
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 …
Enhancing the flotation recovery of copper minerals in …
Due to this high content of copper, the slags are milled and floated to recover the copper. The main drawback in the current process is that the final flotation tailings grades are in excess of 0.9% Cu. This copper content is considered too high to be lost in the final waste stream.