Copper Slag Recovery Equipment

The recovery rate of copper can reach 90.13% under - the optimal conditions of 1200°C, an iron to silicon mass ratio of 1.0, 3wt.% ferrous sulfide, and a duration of 45 min. Lead (54.07wt.%) and zinc (17.42 wt.%) are found in the flue dust as lead sulfate, lead sulfide, and zinc oxide, while

Copper smelting slag (CSS) is a typical bulk industrial solid waste generally produced during the matte smelting and blowing smelting process of the copper sulfide concentrate [1], [2], [3].Currently, for every metric ton of metallic copper produced, approximately 2.2 ∼ 3.0 metric tons of CSS are generated.

With the purpose of recovering the metal values, in this study the copper slag was reduced by coke and biochar at 1250 °C in an argon gas atmosphere using the isothermal reduction/drop quenching technique. The phase compositions of metal, matte, and slag were determined using electron probe microanalysis (EPMA). The effects of reduction time and …

Copper slags can hardly be utilized because the fayalite in it produces silica gel during the dissolution process.This work proposes a new process on sulfuric acid treatment of copper slag (Jinchuan Group, Gansu Province, China.). The results show that over 98% of recovery efficiency of Cu 2+, Co 2+, Ni 2+ and Zn 2+ was achieved through the whole process …

valuable metals from copper slag [10–14]. However, cur-rently, the bulk iron in copper slag is not effectively re-covered on an industrial scale, leading to considerable waste of iron resources. In recent years, considerable research efforts have been devoted to …

However, realizing a large-scale industrial expansion of high gravity equipment will be extremely difficult. Guo et al. used the smelting reduction and vulcanization process to recover Cu from copper slag. ... Recovery of iron from copper slag via modified roasting in CO-CO 2 mixed gas and magnetic separation. J Iron Steel Res Int 27(7):796 ...

Copper slag (100 g) and sulfur powder (40 g) were thoroughly mixed in a uniform fashion with a mixer. ... it is necessary to continue to develop special equipment that can improve the sulfuration efficiency in the future. 4. ... Separation and recovery of tin and copper from tin refining sulfur slag using a new process of airtight sulfuration ...

Iron grain growth during deep reduction roasting is important for iron enrichment from copper slag (CS) through magnetic separation. In this work, a novel method of additive-free activation roasting, including oxidation and subsequent reduction roasting, was proposed to increase the iron grain size, then the iron was extracted by magnetic separation.

Dive into the research topics of 'Pyrometallurgical Reduction of Copper Slag with Biochar for Metal Recovery'. Together they form a unique fingerprint. Metal Recovery Engineering . Copper Slag Engineering . ... Facility/equipment: Facility. Procedure . Metal 90%. Thin Films 80%. Temperature 76%. Liquid Film 72%. Cite this. APA Author

Most researchers (Guo et al., 2018a, 2018b) prefer to employ pyrometallurgical technologies for iron recovery from copper slag, owing to its advantages, including a short process flow, ... (5% CaO) melt. Details of this equipment have been described in other work (Wang and Sohn, 2018). In this in situ observation, 30 mg of fayalite powder were ...

Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 0.3-3%. The slag may also contains lead & zinc minerals like galena, sphalerite. Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper.

A recent study describes a unique sulfurization-reduction technique for recovering copper, lead, and zinc from copper smelting slag.

The recovery efficiency of copper from the converter slag was 92%, while that from the smelter slag was 54%. Herreros et al. [ 48 ] studied the influence of stirring speed, …

At present, there are three different treatment methods for copper slag, namely beneficiation, smelting and chemical extraction. We have briefly collated some previous work on metallurgical slag treatment in Table 1, listing the treatment method, the type of reagents added, and the recovery efficiency of valuable elements.Besides, some researchers focus on …

Reclamation of copper from copper smelting slag has long been the strategy to improve the recovery ratio for copper smelters; however, it is hindered by the precipitated Fe 3 O 4 particles in the molten slag. 5,6 Firstly, the entrained copper in the slag is high, up to 0.6–1.4%, greatly exceeding the mining grade of copper ore (0.4–0.8%). 7 ...

The commonly-seen slag/dross/residue includes copper dross, lead dross, tin slag, zinc leaching residue, antimony/arsenic dross, cadmium residue/cake, sulfur residue/cake, vanadium slag, nickel slag, iron tailing and iron bearing red-mud waste.Metalcess is a professional company offering metal extracting/ recovery/ recycling solutions. We have rich experience in slag …

The efficiency of copper-slag separation is comprehensively influenced by the temperature, oxidation condition, the grade of matte, slag composition, and slag properties [9], which inextricably causes a substantial amount of copper losses to slag [1], [10].Copper is lost to slag in the form of metallic Cu, sulphide, oxide, or silicate in the oxidizing atmosphere via …

As a result of growing environmental awareness, steel slag is now highly regarded as a recycled material that can reduce environmental impact due to its resource-conservation and energy-saving properties. MEKA is designing and …

The Fe3O4 and Fe2SiO4 in copper slag were successfully reduced to metallic iron by coal-based direct reduction. Under the best reduction conditions of 1300 °C reduction temperature, 30 min reduction time, 35 wt.% coal dosage, and 20 wt.% CaO dosage (0.75 binary basicity), the Fe grade of obtained iron concentration achieved 91.55%, and the Fe recovery …

Our sand sifter motors are high quality copper wire motors. The sand screening machine is suitable for sand mining, construction plants, coal mines, and grain screening. The leveling …

Physical, hydrometallurgical and pyrometallurgical methods for valuable metals recovery from copper slag are particularly reviewed in this paper. Besides, this paper then introduces a novel technique proposed by Northeastern University of China which can achieve high-value and slag-free treatment of molten copper slag. ... bathroom equipment ...

Optimizing Copper Recovery from Slag through Flotation,Maximize Copper Recovery from Slag with Dasen's Flotation Solutions! About; Video; Downloads; Home; Solutions. Gold Ore Processing. Gold Gravity Processing Plant; ... Xi'an Dasen Mining Machinery & Equipment Co., LTD Tel: +86 29 8113 7393 Whatsapp:+86 133 1927 7356

The mineral processing method to recover copper from copper slag has increasingly become indispensable in pyrometallurgical copper smelting due to its high recovery rate, stable production, and low energy consumption.

Large amounts of copper slag are produced every year and major fractions of it are currently disposed, not withstanding the multiple ways the material can be used. Application of the slag is often limited by the presence of hazardous elements and their leaching behavior so they can potentially pollute soil, surface water and underground water. To remove such elements …

After that, the filter slag was mixed with 100 mL saturated bromine water containing 0.5 g sodium citrate for 60 min, and the solution of copper sulfide was obtained after filtration. Finally, the copper ions' concentrations in the copper sulfide solution were tested by an inductively coupled plasma mass spectrometry [27].

With the shortage of high-quality raw materials and increasingly strict environmental regulations, the recovery of metals from copper slag and pyrolusite has become a research hotspot. A novel method for simultaneously extracting Mn and Fe from pyrolusite and copper slag has been proposed. Under the optimal conditions (Copper slag / Pyrolusite = 2, …

Copper slag flotation offers a viable approach for recovering valuable copper from this industrial byproduct. By carefully considering factors such as particle size, pH, reagents, temperature, agitation, and froth …

The results show that tin and indium can be efficiently recovered into the copper phase in reducing process conditions (pO 2 below 10 −7 atm), whereas gallium dissolved preferentially into the solid spinel phase in all conditions examined. Gallium dissolution into slag and spinel was found to occur as GaO 1.5, whereas indium in spinel was determined to be as …

Materials. The smelting slag used in this study was obtained from a copper plant in China. Mineralogical analysis, performed using scanning electron microscope (SEM) and energy dispersive X-ray spectroscope (EDS), polarizing microscope and X-ray diffraction (XRD), indicated that fayalite (Fe 2 SiO 4) and magnetite (Fe 3 O 4) phases were major components …

Copper slag is a byproduct of the pyrometallurgical production of copper, with an estimated 2.2–3 tons of slag generated per ton of copper produced [1], [2].Global copper production generates approximately 30 million tons of slag annually [3].Disposing of large quantities of end-of-life copper slag presents significant waste management challenges since it …