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Recovery of iron from copper slag via modified roasting in …

A novel technology, modified roasting in CO–CO2 mixed gas and magnetic separation, was presented to recover iron from copper slag. The effects of various parameters such as dosage of flux (CaO), gas flowrate of CO and CO2, roasting temperature, roasting time, particle size of modified slag and magnetic flux density on …

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A New Technique for Recovering Copper From Complex …

The results of the analysis of the copper oxide ore chemical elements shown in Table I indicate that the main recycled component was Cu, with a content of 1.46%, and the main gangue components were SiO2, Al2O3 and MgO at 56.6%, 14.62%, and 5.53%, respectively. The results of the …

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Magnetic Separation: Principles, Devices, and Applications

Magnetic separation, thanks to its advantages of large processing capacity, low operation cost, high efficiency and applicability, and environmental friendliness in …

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Recovery of iron and copper from copper tailings by coal …

Thus, the copper went into magnetic products by magnetic separation. Adding copper into the steel can produce weathering steel. Therefore, the CIP can be used as an inexpensive raw material for weathering steel. Previous article in issue; Next article in issue; Key words. Copper slag. Coal-based direct reduction.

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Magnetic property of malachite for high-gradient magnetic separation

A SLon-100 pulsating HGMS separator produced by SLon Magnetic Separation Co., Ltd. in Jiangxi Province of China was used for the HGMS test. As shown in Fig. 3, the magnetic pole, magnetic yoke, excitation coils, and pulsation mechanism are the main components of the separator.To ensure the complete immersion of magnetic …

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Recovery of Iron from Copper Tailings Using a Combined

Direct reduction refers to the process of reducing iron minerals in copper slag to metallic iron particles below the melting temperature of copper slag [].Using direct reduction–magnetic separation technology to recover iron resources in copper slag has fair recovery effect and short reaction time, which is the development trend of …

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Molybdenum Copper Separation Methods Chemical and …

This method includes froth flotation, magnetic separation, and electric separation. Froth flotation is based on the difference in surface wettability of molybdenum and copper minerals. Magnetic separation is used to separate magnetic and non-magnetic fractions of molybdenum and copper minerals.

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Eco-friendly Iron Extraction from Fe-containing Copper …

The higher content of copper oxide (CuO) in the concentrate is because copper oxide (CuFe 2 O 4) exists in magnetite (Fe 3 O 4), which is easy to be enriched in the concentrate by reduction roasting and weak magnetic separation, and the copper in the tailing exists in the form of copper oxide (CuO), which is difficult to be separated by ...

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Application of Magnetic Separation Technology in Resource …

Magnetic separation technology is a physical separation method that uses the differences in magnetism between matter to separate them from each other by …

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Separation of gold and other rare materials from an …

As shown in Fig. 1, the size of the apparatus developed to separate the weak magnetic particles was less than 10 cm in length, and its weight was below 1000 g.Two NdFeB plates (4 × 4 × 1 cm ...

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Comprehensive recovery of zinc, iron and copper from copper …

In this study, a novel method to recover copper, zinc and iron from copper slag by SO 2 –O 2 roasting-leaching-magnetic separation was proposed. The effect of roasting experiment conditions were roasting temperature of 900 °C, holding time of 120 min, and φ SO2 (The volume fraction of SO 2 in the mixed gas of SO 2 and O 2) of …

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A novel process to upgrade the copper slag by direct …

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% …

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Magnetic Separation: Process & Techniques

Magnetic separation is a process widely used in mineral processing and recycling industries to separate magnetic materials from non-magnetic ones, utilizing the magnetic properties possessed by specific elements or compounds. This technique is particularly effective in the concentration of iron ores and the removal of impurities from non ...

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Exploring the Efficiency of Magnetic Separation and Gravity …

The presented work offers an innovative process scheme for valorizing Pb-Zn slag, which involves crushing, grinding, and separation techniques to concentrate valuable components (non-ferrous metals). This methodology could have a significant impact on the global beneficiation of metallurgical slags since it is significantly more simple, …

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Efficient Recovery of the Combined Copper Resources from Copper …

Based on the characteristics of COBL ore, a novel combined method of magnetic separation and individual leaching has been proposed to efficient recover copper resources.

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Magnetic separation in mineral processing

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 …

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Pulsating HGMS for industrial separation of chalcopyrite from …

The copper concentrate and non-magnetic product produced from the separator were analyzed for mass weight, Cu and Mo grades and recoveries. We have particularly established a Mo reduction ratio in copper concentrate product (R Mo) and a Separation Efficiency (SE), to evaluate the pulsating HGMS performance for the …

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Magnetic separation of weakly magnetic copper minerals

High Gradient Magnetic Separation of small (5-38 µm) weakly magnetic copper mineral particles from a copper concentrate and ore has been performed.

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Utilization of high-gradient magnetic separation–secondary …

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 copper.

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Methods of Separation of Mixtures with Examples

In this method, the powered mixture falls on a belt of magnetic separator as shown in the below figure. When the mixture passes over the rollers, the magnetic substance falls vertically down while the non-magnetic substance falls a little away. Some mixtures that the magnetic separation method can separate are: Separation of iron …

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Enhancing the separation of refractory weakly magnetic …

For improving selectivity of HGMS in processing refractory weakly magnetic minerals, we developed a novel method termed high gradient magnetic separation coupling with magnetic fluid (HGMSCMF) and experiments on the refractory ilmenite ore (serious competing capture occurred between ilmenite and titanaugite) in Panzhihua in …

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Recovery of Iron from Copper Tailings Using a Combined

Direct reduction refers to the process of reducing iron minerals in copper slag to metallic iron particles below the melting temperature of copper slag [].Using direct …

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High Intensity Magnetic Separator | Copper | Bunting

Indeed, copper is widely regarded as one of most recycled engineering metals with much of the world's globally mined copper, some 0.32 trillion kilogrammes, still in circulation. Copper wire cleansed on the HISC Magnetic Separator. In a typical home there is around 100kg of copper, with 1.5 kg found in most computers.

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Magnetic Separation: Principles, Devices, and Applications

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 methods, can be widely considered for use in the field of mineral processing. ... copper-molybdenum, copper-lead, copper-zinc separation). …

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Electromagnetic separation is used in the concentration of:A. Copper …

Electromagnetic separation is the method to concentrate the ore or to remove unwanted materials like sand and clay from the ore. Magnetic or electromagnetic separation is the technique based on differences in magnetic properties of the ore or gangue. The particles that are attracted with the magnetic field are separated out.

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Which of the following method used the concentration of copper pyrites

This method is used when a higher ore contains impurities with higher density. This method is used for the concentration of Sulphide ores. (Eg: Copper pyrites, iron pyrites, Galena, Zinc blende etc.) Copper is mainly extracted from copper pyrites. After the concentration of its ore by froth flotation process, the ore is roasted in a current of air to remove arsenic, …

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Copper Processing Plant, Equipment

Copper ore beneficiation usually adopts gravity separation, flotation, magnetic separation, leaching and other methods. JXSC supports customized copper processing plant and equipment, fully suitable for separating copper oxide ore (azurite, cuprite and malachite); copper sulfide ore (chalcopyrite, bornite and chalcocite) and natural copper.

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Extraction and separation of copper and iron from copper …

Fire treatment, magnetic separation treatment, alkali leaching treatment of CSS and oxygen pressurization in the acid leaching process can effectively improve the leaching efficiency of acid leaching (Zhang et al., 2021). Oxidants such as liquid chlorine or hydrogen peroxide are often added to accelerate the dissolution of copper.

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Magnetic Separation

Magnetic separation is a process where a contaminant is first attached onto a magnetic carrier material (e.g., magnetite), and subsequently, the contaminant-laden carrier is …

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Ball milling coupled cascade magnetic separation to …

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 ...