High-molecular-weight polymers based on anionic polyacrylamides (PAMs) are used as tailing flocculants in mineral processing plants. The recirculation of water recovered from the tailing thickeners to the flotation process introduces residual PAMs, which can impact the flotation of important copper sulfides like chalcopyrite, bornite, and enargite.
A copper concentrator is milling 15,000 tons/day of a chalcopyrite ore assaying 1.15% copper. The concentrate and tailings produced average 32.7% and 0.18% copper, respectively. I let you do the math! Three product (bi-metallic) formulas
The chemical composition of Sossego DAM copper tailing is depicte d in Table 2 ... The main Cu-bearing mineral in copper concentrates consumed in smelters around the world is chalcopyrite (CuFeS 2
These tailings materials were geochemically and mineralogically characterised to assess pyrite and chalcopyrite oxidation, acid mine drainage generation, and trace element mobilit... ... %)...
Mineralogical characterization revealed that chalcopyrite is the major copper contributing mineral along with a minor amount of malachite. The major gangue minerals present in the ore are quartz, feldspar and mica. ... are liberated at 150 µm. Pre-concentration studies were carried out using a shaking table, wherein deck angle and wash ...
A pilot scale heap leaching study with 5 kg of tailing waste mixed with Acidithiobacillus ferrooxidans showed a 64.28% w/w copper tailing in 40 days. Energy Dispersive -X-Ray Fluorescence analysis ...
About 30% of the copper lost to the scavenger tail occurs as chalcopyrite-sphalerite binaries. These binaries comprise about 10% by weight chalcopyrite. Improved recovery of this class of binary composite would be …
The imbalance between raw materials of high economic importance and their supply has increased the search for new approaches to obtain valuable elements from mining tailings. In this study, the extraction of copper, zinc, and lead from sulfidic tailing in sulfate–chloride media was investigated. A 33 Box–Behnken design was applied to evaluate …
Pequested9 the figures for the chalcopyrite —.in sitee were caroled as far as the minus-GOO-mesh sizes. 4 44_1 7sist mKrwrInmw maw.= - The following table ehaas te grain anlyeic of the …
Table 4 presents the mass balance and the chemical assays of screen undersize, rougher magnetite pellet feed, and non-magnetic rougher tailings. Table 5 shows the upgrade …
tailing fr action, %; ... 2000), are presented in Table 5 and Figures 1 ... the maximum recoveries for chalcopyrite and pyrite were found to be 92.2% and 47.5%, respectively. ...
From the increase in the atomic concentration of oxygen in Table 5, it can be inferred that the presence of dithionite decomposition products increased the concentration of iron hydroxide species on the chalcopyrite surface and to a less extent there are contributions to the total oxygen by oxidized sulphur species on the chalcopyrite surface ...
The primary gangue and host rock minerals represented less than 20% of the total tailing material (Table ... Chalcopyrite represented less than 10 wt% of the recognised sulphides and mainly occurred in association with pyrite in stockwork-vein assemblages or in massive irregular masses. Sphalerite was generally a minor component and occurred as ...
Froth flotation is a widely and economically employed treatment method for the early separation of chalcopyrite and pyrite mainly according to the differences in the physicochemical properties of the minerals in the presence of various surfactants (Lee et al., 2022, Mkhonto et al., 2021).To achieve high-quality copper concentrates in the separation of …
Chalcopyrite is the primary mineral resource for copper extraction and is one of the most abundant copper containing minerals in terms of reserves [1, 2].Flotation is a critical step in chalcopyrite extraction and processing, making an efficient flotation process essential for the copper industry's development [3].A significant challenge in chalcopyrite flotation is the co …
1. Introduction. As an important metal raw material, copper is widely used in the fields of daily necessities, industries, and national defenses (Schipper et al., 2018).Chalcopyrite (CuFeS 2) is the primary source of commercial copper metal and it is often associated with pyrite in ore deposits (Ignatkina et al., 2018).In order to obtain high-purity copper concentrate, froth …
The ore passing from the furnace is cooled and fed to a second Wetherill-Rowand separator which removes the chalcopyrite as a magnetic product; the concentrate from this machine carries from 12 to 20 per cent. copper, and the tailing from 0.2 to 0.5 per cent. copper, varying with the quality of the ore and the amount put through.
The chalcopyrite crystals are surrounded by bornite, quartz, or calcite crystals. Table 5.2 shows the chemical composition of some associated minerals. Consistent with the theoretical values, the percentages of Cu, Fe, and S in the bornite are 63.01%, 11.01%, and 25.23%, respectively.
There are a wide variety of studies that delve into the use of different types of collectors on chalcopyrite flotation. Table 1 summarizes the main published articles ... Leiva W.H., Jeldres R.I., Cisternas L.A. Partial Seawater …
Chalcopyrite and bornite are two important copper minerals, and they often coexist. In this study, the co-bioleaching of chalcopyrite and silver-bearing bornite by mixed moderately thermophilic culture at 50 °C was investigated. The bioleaching results show that the extraction percentage of Cu for co-bioleaching of chalcopyrite (Ccp) and silver-bearing bornite (Bn) (Ccp/Bn = 3:1) was …
This study presents the exploratory results on the nickel extraction from a serpentine flotation tailing sample containing sulfide and serpentine minerals at 0.3 wt.% of nickel. ... operation at higher pH values will improve the copper extraction from copper sulfides such as chalcopyrite . Table 1 The chemical composition and recoveries of main ...
Fig. 12 shows S 2p XPS spectra of flotation tailing with 96% pyrite and 4% chalcopyrite. Due to the predominant pyrite composition, the XPS spectra illustrate the surface …
accumulated tailing reserves into production along with natural ores in order to support the current and long-term increased non-ferrous metal production rates, preserving the nature balance. Most tailing dumps which reserves are close to those of natural mineral ore …
Refering to Table 3 and Fig. 3 a, ... dumping and tailing, has called on the society to find ways of seeking remedy that will adequately treat mining waste from mine dump, tailing and abandoned ...
This paper describes a study aiming at producing a magnetite pellet feed as a by-product from a dam chalcopyrite flotation tailings and generating free magnetite non-magnetic rougher tailings.
Tailing, in context to mining, is defined as the waste or non-economic by-product generated during mining activities, processing of minerals, and other materials that contain small amounts of residual valuable minerals, chemicals, water, and heavy metals (Adiansyah et al. 2015).Studies indicated that the process of mineral exploitation and utilization generated a …
The atomic concentration of the chalcopyrite and arsenopyrite surface with and without PAA are shown in Table 3 and Table 4. As can be seen from Fig. 9, signal peaks of O, S, Cu and Fe signal peaks were detected on the surface of chalcopyrite and O, S, As, and Fe were detected on the surface of arsenopyrite, both in the presence and absence of ...
It oxidized the residual cyanide in cyanidation tailing pulp from 0.37 g/t to 0.14 g/t under test conditions, leading to easier flotation of chalcopyrite and galena than sphalerite and pyrite. (2) The obtaining Cu–Pb concentrate became much harder to separate than the original as a result of the residual reagents.
During the chalcopyrite leaching by sodium nitrate and sulfuric acid solution, leaching rate decreases with increasing the time and a part of chalcopyrite mineral grains remains in the leach residue.
Partial seawater desalination treatment for improving chalcopyrite floatability and tailing flocculation with clay content. Author links open overlay ... and systems with clay content. This situation can also be appreciated in the kinetic parameters (see Table 3), where the chalcopyrite flotation in a clay-free system using seawater at pH 11 ...
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