Copper content in the ore feed, collector dosage in the rougher and the scavenger flotation circuits, slurry pH in the rougher flotation circuit and frother consumption were selected as input parameters to estimate the copper grade and recovery of final concentrate, as well as the copper content in the final tailings of the flotation plant.

Flotation without copper activation generally has no effect on pyrite recovery as sphalerite does not combine with xanthate without copper [6]. Using micro-flotation, laboratory batch, and in-plant minicell experiments, Dichmann and Finch [70] observed similar behaviour during combined flotation of activated pyrite and sphalerite. …

Flotation of sulphidic and oxidic copper minerals is reviewed, with particular reference to previous studies of refractory copper ore flotation. Keywords: Flotation; recovery; …

The pyrite recovery from the flotation of the copper ore with 25 % pyrite was finally reduced as the pH increased from 10.5 to 11.5. Nonetheless, the improved Cu concentrate grade was limited, only comparable to that produced from the flotation of the copper ore with 5 % pyrite at pH 9.0.

In copper flotation plants, an increase of 1%í2% in recovery and/or grade is economically remarkable. In this work, reagent optimization is a very important issue, and much time and attention are spent on the optimization of flotation reagents in order to provide the most effective separation and concentration results. The advantages of the ...

The copper flotation process design is a multi label learning. Before multi label classification and regression, label-specific features for each label need to be selected from the original features. This paper puts forward a multi label feature selection (MLFS) based on domain knowledge and label correlation. In the proposed MLFS, the domain …

Flotation is widely used to concentrate copper, lead, and zinc minerals, which commonly accompany one another in their ores. Many complex ore mixtures formerly of little value have become major sources of certain metals by means of the flotation process.

Flotation. The flowsheet of the copper–molybdenum ore bulk flotation test is described in Fig. 2. Six hundred grams −2 mm ore was ground to 70% −74 μm in a Φ160 × 180 mm ball mill. The bulk flotation tests were conducted in a XFD flotation cell, with cell volumes of 1500 mL for rougher flotation and 500 mL for cleaner flotation.

The recovery of these copper minerals by flotation or hydrometallurgy from ores, typically containing 0.5%TCu (open pit mines) and 1-2%TCu (underground mines) is of great commercial importance...

In contrast to bentonite, increasing kaolin content in Telfer clean ore slightly lowered the flotation recovery, but reduced the copper grade substantially. In Fig. 2 (b) with an increase in kaolin content in the ore from 0 to 25 wt.%, the copper grade decreased from 5% to 2.4% in the first concentrate.

A sample of flotation tailings obtained from Bor Mining, Serbia, was used in this study. The chemical compositions of the initial sample (flotation tailings) and feed sample (copper concentrate) were confirmed by inductively coupled plasma optical emission spectroscopy (ICP‒OES) and X‒ray fluorescence spectrometry (XRF) as …

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) electrolysis. Following mining, transporting, and crushing to a consistent gravel or golf ball-size, the crushed ore is further processed at a mill ...

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 …

After copper recovery by flotation, the remaining part of the slag is considered waste and disposed of in the slag dump area. However, even after copper recovery, copper slag flotation tailings (CSFT) may still contain several metals in varying amounts. However, the complexity and low metal concentration have undermined the …

Overall, BEHA is a promising flotation reagent for the enrichment of oxidized copper ore in sulfide-free flotation. Following a series of surface detection techniques, it was suggested that the reason BEHA can be used for the sulfide-free flotation of malachite due to the stable chemical adsorption of the reagents on the mineral surface, and ...

Copper and copper-tin alloy can be separated effectively by flotation with ADD. •. The difference of adsorption capacity of ADD is main factor for flotation …

ISSN Print: 2327-4077. DOI: 10.4236/jmmce.2023.113006 May 9, 2023 63 J. Minerals and Materials Characterization and Engineering. Tennantite a nd Enargite Re jection in t he. Copper Flotation —A ...

Large amounts of tailings are produced when copper minerals are concentrated by flotation. 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 (Gunson et al., 2012; Li et al., 2019).

In the current research work, influences of particle size, grinding time, and agitation rate on the flotation of a copper sample from Sungun copper mine (E. Azerbaijan, Iran) containing 0.66% Cu ...

The present paper study of froth flotation of copper, from smelting slag, using not desalinated seawater as fresh water. The higher copper recovery obtained was 77.27%., Under #200 Taylor mesh ...

Copper recovery increased from 85% to 90%, 94% and 93% at the end of flotation, in the presence of DP-1777, DP-1775 and DP-1778, respectively. DP-1775 and DP-1778 had a better effect on copper recovery than DP-1777. The presence of biopolymers also led to an increase in flotation rate, seen as the higher copper …

Minerals | Free Full-Text | Flotation of Copper Ores with High Cu/Zn Ratio: Effects of Pyrite on Cu/Zn Separation and an Efficient Method to Enhance Sphalerite Depression. Journals. Minerals. Volume 12. Issue 9. …

The objective of this study was to investigate the floatability of a complex Kansanshi mixed copper ore with a special focus on the sulphidisation process. Controlled potential sulphidisation (CPS) is preferred over slug sulphidisation as the industry standard for the flotation of oxide copper minerals. Two potential ranges were investigated in ...

State evaluation is vital to ensure the process operating optimality for copper flotation processes. Specifically, the froth image is the comprehensive embodiment of raw ore properties and process operations, which is one of the key factors to realize condition recognition and state evaluation. Firstly, a feature mosaic technique-based …

Because the copper in this type of ore usually assays only plus or minus 1% copper, the porphyry copper operations must be relatively large in order to be commercial. The flowsheet in this study illustrates a typical 3,000 ton per day operation. In general most operations of this type have two … See more

Response surface methodology (RSM) is one of the most effective tools for optimizing processes, and it has been used in conjunction with the Analysis of Variance (ANOVA) test to establish the effect of input factors on output factors. However, when this methodology is used in mineral flotation, its polynomial model usually performs poorly. …

As an example, the copper flotation columns were operated with holes in the sparger fabric for a period of time. The overall results attained with the single stage copper flotation columns are equal to the two stage conventional cleaner circuit in copper recovery. A concentrate grade of 29.83% Cu with a sulfide copper recovery of 90.36 …

This study presents a predictive geometallurgical model for the Ouansimi copper deposit in Morocco, focusing on the flotation of mixed copper ores. The deposit was divided into two geometallurgical domains (GMD) with distinct oxidation rates using K-means clustering. The principal component analysis-partial least squares regression …

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 …