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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 sodium sulfide …
High Gradient Magnetic Separation of small (5-38 µm) weakly magnetic copper mineral particles from a copper concentrate and ore has been performed.
DOI: 10.1016/J.JCLEPRO.2018.03.264 Corpus ID: 158745401; Innovative methodology for comprehensive and harmless utilization of waste copper slag via selective reduction-magnetic separation process
Separation and recovery of iron and nickel from low‒grade laterite nickel ore using reduction roasting at rotary kiln followed by magnetic separation technique. Mining, Metallurgy & Exploration ...
Copper-oxide raw ore has a complex composition and cannot be processed effectively by conventional, single-stage sorting methods. Based on the characteristics of copper-oxide ore, a new combined grinding–flotation–high-gradient magnetic separation–secondary grinding–leaching process has been proposed to recover …
As part of copper and iron remained in tailings during the magnetic separation and the copper in concentrate was almost not leached, the consumption of sulphuric acid was also reduced. Download : Download high-res image (87KB) Download : Download full-size image; Fig. 8. Proposed flow sheet for the copper and cobalt …
Magnetic Separation in Recycling. One of the most common applications of magnetic separation is in the recycling industry. It is used to separate ferrous materials, such as …
In this method recovery of bismuth from copper flue dust was carried out after copper and iron separation. To separate copper from dust, this material was leached with water and dilute sulfuric acid (0.6 M). Magnetic separation was performed with field intensities of 0.1 T and 0.4 T to separate iron in the leaching residue. 70 % of bismuth is ...
Electromagnetic Separation of Copper Iron Sulphides. Table of Contents. Chalcopyrite, sp. gr. 4.15 to 4.3, is too feebly magnetic to be separated raw, and must …
The magnetic design of the head pulley was optimised using Finite Element Analysis software with the simple objective of maximising the magnetic field strength. Such an intense magnetic field would enable the attraction and separation of fine ferrous metal dust and, more critically, paramagnetic metals such as work-hardened stainless-steel.
Separation of chalcopyrite from molybdenite is currently mainly carried out by flotation, but this process is costly because of the extensive use of inhibitors. This study briefly describes a 7.0T/100CGC low-temperature superconducting magnetic separator and discusses its separation principle as well as the effect of magnetic induction on …
Construction of copper (II) affinity- DTPA functionalized magnetic composite for efficient adsorption and specific separation of bovine hemoglobin from bovine serum ... Then the product was isolated relying on magnetic separation and washed with deionized water several times. Finally, the as-prepared microspheres were …
The xanthates KEX and NIX did float a significant amount of metallics, which had to be removed from the copper fraction by magnetic separation. It was not determined if metallic copper or iron-nickel alloy was the phase floated by the xanthates. However, magnetic separation of the copper-rich fraction removed metallics high in …
Abstract: High Gradient Magnetic Separation of chalcopyrite and bornite, both weakly magnetic copper minerals with mass susceptibilities of about 0.1 × 10 -6 m 3 /kg and …
A new approach was developed for the magnetic separation of copper(II) ions with easy operation and high efficiency. p-Mercaptobenzoic acid served as the modified tag of Fe2O3@Au nanoparticles both for the chelation ligand and Raman reporter. Through the chelation between the copper(II) ions and carboxyl groups on the gold shell, the …
A combined process of flotation and high-gradient magnetic separation was proposed to utilize Yulong complex copper oxide ore. The effects of particle size, activators, Na2S dosage, LA (a mixture of ammonium sulfate and ethylenediamine) dosage, activating time, collectors, COC (a combination collector of modified hydroxyl oxime acid …
The dry magnetic separation experiments were carried out with a 500 mT or a 300 mT NdFeB magnet which was placed on the side of the centrifuge tube, and the residues were separated by vibrating while the magnet was attracted. ... Extraction and separation of copper and iron from copper smelting slag: a review. J. Clean. Prod., 368 ...
the superconducting magnetic separation process was discussed, and the effect of the ultra-high magnetic field strength of the superconducting magnetic separation on the separation performance was explored using experimental data. These results will provide theoretical support for the separation of chalcopyrite from molybdenite and create
An innovative technology for direct reduction-magnetic separation with the addition of Na 2 CO 3 and CaO was studied to upgrade copper slag assaying 40.33% Fe total and 0.65% Cu. It is difficult to recover iron and copper from the slag by direct reduction since the iron mainly occurs in fayalite and the copper exists in copper sulfide.Additives …
Magnetic separation is used to separate non-magnetic material from magnetic material by using magnetism to attract magnetic material from a solids mixture. To do this, a magnetic field is used to exert force on magnetic particles, attracting them to the magnet. ... This results in the separation of non-ferrous metals such as copper and ...
Copper slag is a solid waste that has to be treated for metals recovery. In order to recover iron from copper slag, the technology of carbothermic reduction and magnetic separation was developed.
Currently, the majority of copper tailings are not effectively developed. Worldwide, large amounts of copper tailings generated from copper production are continuously dumped, posing a potential environmental threat. Herein, the recovery of iron from copper tailings via low-temperature direct reduction and magnetic separation was …
The roasting-magnetic separation process is the route to convert the metals into a desired phase, which can be easily separated from the slag through mixing copper slag with calcium oxide as ...
Introduction. Copper slag flotation tailing (CSFT) is a by-product of Cu pyro-metallurgical production, which accounts for more than 80 % of all Cu products produced worldwide [1].During Cu extraction, molten Cu slag is generated, which consists of a …
Subsequently, continuous wet magnetic separation with a magnetic separation intensity of 120–80-60 mT was used to separate the MIC and NT from the MP. To determine the enrichment effect of valuable metals after magnetic separation, the enrichment ratio, which is the ratio of the metal content in the MIC to the metal content in …
are different. The leaching rates of copper from magnetic separation concen-trates and tailings are 28.44% and 26.95%, respectively. The total copper …
Magnetic separation, thanks to its advantages of large processing capacity, low operation cost, high efficiency and applicability, and environmental friendliness in comparison to other separation …
To improve the recovery of copper, the viscosity of copper molten slag is decreased by the reduction of magnetic iron, which, in turn, accelerates the settling and …
The leaching rates of copper from magnetic separation concen-trates and tailings are 28.44% and 26.95%, respectively. The total copper recovery is 87.61%. This new technology introduces a high-gradient magnetic separation process, which achieves the requirements of low energy con-
Magnetic separation is mainly based on the hydrophobicity of MPs, which allows them to be magnetized and bind with magnetic materials [55]. The motion of magnetized MPs then can be controlled by magnets or an applied magnetic field, thereby easily removed from wastewater. In light of this, most common plastics can be collected …
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 …