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RECOVERY OF IRON FROM COPPER FLASH SMELTING

2015-9-7  However, the copper content in the final slag decreases to a minimum value of 0.06% and the iron decreases from 28.53% to 7.11% with the increasing of coke addition sug-gesting that is possible recover most of the copper content in the slag in the metal phase. Table 2: Chemical composition of metal and final slag phases as function of coke addition

(PDF) Recovery of pig iron from copper smelting slag by

Copper slag is a by-product obtained during smelting and refining of copper. Copper smelting slag typically contains about 1 wt.% copper and 40 wt.% iron depending upon the initial ore quality and

An Overview of Recovery of Metals from Slags

Major constituents of FSF slag are iron and silicon and oxygen constituting around 80 %, with copper content: 4.6 %, arsenic content: 0.49 % and approximately 10 % other impurities, such as Na, Mg

Low Magenetism Iron Residue Recovery-Slag/Dross Recovery-

Home > Know-how > Slag/Dross Recovery Low Magenetism Iron Residue Recovery Flash Magnetization Roasting furnace can be used to recover superfine low-magnetism iron residue/slag, especially those from zinc PLS purification and nickel laterite leaching, to standard iron ore.

Slag recycling recovery

The terms blast furnace slag (BFS) and granulated blast furnace slag, as well as LD slag and electric furnace slag are used for finer distinctions. With high-quality iron ore grades with an iron content of 64 to 67 %, a blast furnace typically produces about 0.25 to 0.30 t of slag per t of pig iron.

A method for recovery of iron, titanium, and vanadium from

2018-2-3  An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low-temperature roasting of vanadium-bearing titanomagnetite and water leaching of roasting slag. During the roasting process, the reduction of iron oxides to metallic iron, the sodium oxidation of vanadium oxides to water-soluble

Recovery of Aluminum from Industrial Waste (Slag) by

Electro-refining of aluminum was done by using anhydrous aluminum chloride and NaCl as ionic liquids at low temperature 100 C in electro-refining method producing aluminum of 99% purity. Keywords: Design of Experiment (DOE), Electro-refining, Melting process, %Recovery, Salt slag of aluminum. 1.

Melting and Refining for Iron and Steel

Air Products understands the critical nature of industrial gas supply in iron and steelmaking operations, especially in melting and refining processes. We offer state-of-the-art modes of supply for industrial gases, including oxygen, nitrogen, argon, hydrogen, and carbon dioxide.

Technical Note Development of a Flowsheet for

2015-12-27  Chemical analysis of slag showed that slag contained about 22% Cu and 2.3% Sn. Microscopic examinations of cross-sections prepared from slag samples illustrated different structural properties (Giray et al., 1996; 1997). The reason for this was the stockpile, from where the sample was taken, was accumulated during different times of refining.

Recovery of Precious and Secondary Metals from

2016-3-4  2. Furnace refining, in which the remainder of the base-metal content of the slime is removed by fluxing and fire-refining. 3. Electrolytic parting and refining, in which the silver and gold are parted and obtained in the pure state. 4. Melting of silver and gold into marketable form. 5. Recovery and refining of the more precious metals. 6.

IRON RECOVERY AND PRODUCTION OF HIGH ADDED

2016-3-1  slag of the system would have two liquid regions at 1400°C, one in a highly acidic region (slag basicity 0.2) and one in the near neutral region (slag basicity 0.8 1.1). In order to protect furnace refractories and avoid excessive sulphur in the pig iron phase, the neutral region is selected. Semi industrial scale EAF experiments

Metal Recovery and Crushing Plants Harsco Environmental

2021-5-19  Crushing and sizing the demetallized slag generates specific size fractions for marketing as aggregates, too and Harsco Environmental has a long history of innovating within the MRP refining process and component design space. Our in-house software, BloodHound™, is a unique system that detects Fe (iron) in demetallized slag.

Liberation and Enrichment of Metallic Iron from

2021-2-20  Iron recovery from copper slag generated during copper production by the pyrometallurgical method has been widely investigated to achieve resource utilization. Liberation and enrichment of metallic iron from reductively roasted copper slag were explored in this work. Results show that metallic iron, quartz solid solution, and cristobalite solid solution are the main phases in reductively

Progresses and Future Prospects of Steelmaking

2019-4-3  BOF and secondary refining processes, and expanding iron source utilization by increasing the heating margin. In slag and refractories, slag reuse techniques, recovery of sensible heat from hot slag, and iron and phospho-rous recovery techniques were developed and put to practical use. In casting, stable high-speed casting and

Evaluation of a BOF Slag Recovery Treatment combining

2015-9-7  The iron separation from slag allows ironrecovering as a substitute for scrap as well as,making effective use of the slag for other applications, where iron would be an impurity. This is the reason why, after cooling, the steel slags are round and the iron recovered by magnetic separation g (Horii et al. 2012). he connection between iron

Recovery of vanadium from pig iron Foote Mineral Company

An improved method is described for processing pig iron containing vanadium to obtain a slag containing at least 8 percent vanadium and having a vanadium to iron ratio of at least 0.5 which is directly useful as a refining agent for producing ferrovanadium alloys, the improvement residing in simultaneously introducing a highly oxidizing gas and a protective fluid below the upper surface of a

Recovery of metal values from copper converter and smelter

1980-6-1  Figure 4 shows the dependence of the recovery of metal values on the ferric ion content of the solutions. 1.53 g ferric iron/100 ml of solution used for leaching 10 g slag was about the minimum required to achieve 92% copper recovery, though nickel

REFINING OF NON-FERROUS METALS

2011-3-23  refining. Care must be taken in fire-refining and a balance struck between the amount of im-purities removed and the time taken, as the longer the oxidation, the more copper goes into the slag which must be re-treated to recover that copper. This recovery is achieved by utilizing the affinity of copper for sulphur and the slags, resulting from the

Possible Uses of Steelmaking Slag in Agriculture: An

2018-9-25  Steelmaking slag deriving from BOF process (using the Linz-Donawitz (LD) converter) comes from the pig iron refining process, wh ich converts molten pig iron and steel scraps into high quality steel. Most slags from steel pl ant derive from this pr ocess, with an average of 150-200 kg of slag generated per tonne of st eel produced.

Method of refining the silicatic slag phase obtained in

A method for the refining of the silicatic slag phase produced in the thermal recovery of phosphorus from phosphates, which method comprises treating the slag, in the form of finely granular solid material, with steam at a temperature between 600° C. and the softening temperature of the slag.

IRON RECOVERY AND PRODUCTION OF HIGH ADDED

2016-3-1  slag of the system would have two liquid regions at 1400°C, one in a highly acidic region (slag basicity 0.2) and one in the near neutral region (slag basicity 0.8 1.1). In order to protect furnace refractories and avoid excessive sulphur in the pig iron phase, the neutral region is selected. Semi industrial scale EAF experiments

Progresses and Future Prospects of Steelmaking

2019-4-3  BOF and secondary refining processes, and expanding iron source utilization by increasing the heating margin. In slag and refractories, slag reuse techniques, recovery of sensible heat from hot slag, and iron and phospho-rous recovery techniques were developed and put to practical use. In casting, stable high-speed casting and

Evaluation of a BOF Slag Recovery Treatment combining

2015-9-7  The iron separation from slag allows ironrecovering as a substitute for scrap as well as,making effective use of the slag for other applications, where iron would be an impurity. This is the reason why, after cooling, the steel slags are round and the iron recovered by magnetic separation g (Horii et al. 2012). he connection between iron

Economic and environmentally beneficial treatment of

2012-2-7  Blast furnace slag contains little metal, and recovery of metal (even iron) from it is usually not important. About 220–370 kg of slag is produced per ton of iron. Blast furnace slag was used as early as 1880 as a phosphatic fertilizer. Today, blast furnace and steel slag have found a wide application in areas such as cement production, road

Melting and Refining for Iron and Steel

Air Products understands the critical nature of industrial gas supply in iron and steelmaking operations, especially in melting and refining processes. We offer state-of-the-art modes of supply for industrial gases, including oxygen, nitrogen, argon, hydrogen, and carbon dioxide. However, what sets us apart is our technical knowledge and

Possible Uses of Steelmaking Slag in Agriculture: An

2018-9-25  Steelmaking slag deriving from BOF process (using the Linz-Donawitz (LD) converter) comes from the pig iron refining process, wh ich converts molten pig iron and steel scraps into high quality steel. Most slags from steel pl ant derive from this pr ocess, with an average of 150-200 kg of slag generated per tonne of st eel produced.

REFINING OF NON-FERROUS METALS

2011-3-23  refining. Care must be taken in fire-refining and a balance struck between the amount of im-purities removed and the time taken, as the longer the oxidation, the more copper goes into the slag which must be re-treated to recover that copper. This recovery is achieved by utilizing the affinity of copper for sulphur and the slags, resulting from the

学术报告--东京大学:Hiroyuki Matsuura

2019-1-29  4) recovery of phosphorus and iron from steelmaking slag through pyrometallurgical reduction process, and 5) development of novel recycling process of zinc from electric arc furnace dust. 摘 要 : Steelmaking slag is one of the main by-products generated from steelmaking process.

Inerting, Stirring and Refining for Iron and Steel

Air Products understands the critical nature of industrial gas supply in iron and steelmaking plants, especially in the wide range of inerting, stirring and refining operations that can be employed in these processes. We offer state-of-the-art modes of supply for industrial gases used in these applications, including oxygen, nitrogen and argon.

Chemical characteristics of iron and steel slag : NIPPON

2020-10-18  The primary components of iron and steel slag are limestone (CaO) and silica (SiO 2).Other components of blast furnace slag include alumina (Alsub>2 O 3) and magnesium oxide (MgO), as well as a small amount of sulfur (S), while steelmaking slag contains iron oxide (FeO) and magnesium oxide (MgO).In the case of steelmaking slag, the slag contains metal elements (such as iron) in oxide form