DOI: 10.1016/S1006-706X(15)30018-2 Corpus ID: 137372514; A new technology for copper slag reduction to get molten iron and copper matte @article{Zhang2015ANT, title={A new technology for copper slag reduction to get molten iron and copper matte}, author={Jun Zhang and Yuan-hong Qi and Ding-liu Yan and Haixing Xu}, …
The extraction of gallium from high sulfuric acid leach solution of zinc replacing slag by a new extractant HBL121 was carried out based on the problems in the existing extracting process of ...
This work mainly reviews and combs the physical separation methods, chemical separation methods and combined separation methods used to separate and …
Semantic Scholar extracted view of "The pretreatment of non-ferrous metallurgical waste slag and its research progress in the preparation of glass-ceramics" by Xiaoming Liu et al. ... Machine learning-based study on the mechanical properties and embankment settlement prediction model of nickel–iron slag modified soil. Pingbao Yin …
Throughout the process, slag-free pig iron nuggets, which have similar properties to the blast furnace pig iron and white cast iron, are produced by single-stage heat treatment of dried greenballs. During the process, slag separation from the metallized areas can be enhanced by adjustment of the slag's chemical and physical properties.
This paper creatively proposes a new process with desulfurization slag leached by ammonium chloride as pretreatment, and ... which facilitates the separation of iron and slag. At the same time ...
magnetic separation treatment of the slag to recover the metal iron, ③ crushing and classification of the slag for grain size adjustment to manufacture the slag product, and …
Pre-treatment for steel converter slag utilization. ... Good separation of slag and iron; 5. Stable properties; 6. f-CaO, f-MgO content less than 2%. 1. ... Steel slag's potential uses are becoming more diverse as industrial technology advances. When treating steel slag, special attention must be given to possible applications, energy …
To eliminate the negative effects caused by nonferrous metals when using copper slag in the steelmaking industry, a new scheme was proposed to treat copper …
By limiting the smelting separation between slag and iron to the level of about 1 s, the reduction and migration process of P element was restrained, and the content of P element in the metallic iron obtained after separation was limited to about 0.3 wt%. ... A new iron recovery and dephosphorization approach from high‑phosphorus oolitic iron ...
The pretreatment of steel slag is helpful for recycling the iron-containing components in steel slag. On the other hand, it can ensure the stability of slag composition and structure. ... It can cause the full separation of iron and slag in steel slag and is convenient for highly efficient deironing before entering the superfine grinding system ...
In order to achieve single recovery of Fe, Cu and Si in copper slag and deep removal of impurities in products, the activated reduction combining directional oxidation are adopted to improve the separation limit of target components, which mineral constituent as well as chemical composition at different stages are investigated through XRD and …
This paper creatively proposes a new process with desulfurization slag leached by ammonium chloride as pretreatment, and the main point of this paper lies in the processing of desulfurization ...
The particle size compositions of the raw CGFS sample were analyzed and listed in Table 2 based on the methods described in Section 2.3.3.It showed that the residual carbon in CGFS is predominantly distributed in the 0.5–0.125 mm particle size fraction as its low ash content of only about 26%, while the ash particles are mainly …
The densities of copper slag and matte/copper differ greatly, which is the basic condition that allows for the separation of slag and matte/copper. The density of Fe–Si slag is usually approximately (3.2–3.7) × 10 3 g/cm 3. Copper loss in slag can result from either mechanical entrainment and chemical dissolution.
Studies focusing on the removal of iron-bearing minerals include magnetic/gravimetric separation [24-26], reductive roasting followed by magnetic separation [17,22, 27], froth flotation [28][29 ...
Carbon mineralization technology has emerged as a promising method for permanently sequestering CO 2 by transforming it into a thermodynamically stable solid carbonate material. Recently, alkaline industrial waste, particularly from steel and iron-making processes, has been identified as a proper feedstock due to its high potential for …
The experimental results show that under the treatment condition in this work, about 70% of the iron was recovered from the waste slag, where the iron content in the concentrate is 57%. After further treatment with chlorinated segregation-magnetic separation, the iron content in the recovered slag can reach 83%.
Research in our laboratory found that after the new process of roasting pretreatment-ammonium sulfate roasting-acid leaching of vanadium titanomagnetite, vanadium and iron were dissolved in the leaching solution, while titanium was enriched to the leaching residue, achieving the selective separation of vanadium, iron and titanium …
3. Steelmaking Slag Processing Technology The iron/steel slag processing flow is schematically shown in Fig. 2. Steelmaking slag is subjected to the following four process-es: ① solidify and cooling of the hot molten slag, ② crushing and magnetic separation treatment of the slag to recover the metal iron,
Separation and Purification Technology. ... Pages 463-474. Three-dimensional electro-Fenton system with iron as particle electrode for folic acid wastewater pretreatment. Author links open overlay panel Yanshi Zheng, ... [15], Mn-loaded catalytic particle electrode derived from steel slag [16], powdered or granular …
Development of the New Zinc-Separation Process for the Blast Furnace Dust. Conference paper ... Utilization of by-products such as dust and slag generated in the iron-making process is one of the resource-saving technologies in steel works. ... Maccagni M (2008) From C.Z.O. to zinc cathode without any pretreatment. The Ezinex process. …
The effective separation of iron and titanium slag could be realized by melting metallized pellets at 1550°C for 60 min with the addition of 1% CaO (basicity of 1.1) and 2% graphite powder ...
The formation of molten slag is necessary for slag-iron separation, and iron is in half-molten state during smelting-separation process, the carbon content of which is about 1.25%.
The maximum particle size of iron nugget is about 15 mm, and the recovery rate of the iron and Al2O3 grade of the alumina slag are 96.84 wt % and 43.98 wt %, respectively.
Smelting Slag Matte Tailings Spent catalyst Mineral phase dissociation and slag phase control Keywords High pressure oxygen leaching · Complex resources · Selective separation and extraction · Comprehensive recycling · Solid waste utilization The contributing editor for this article was Grace Ofori-Sarpong.
It was determined that the optimum value ranges for the particle size, magnetic separation distance and rotating frequency were 0.15 mm-0.3 mm, 10 mm-12 mm, 40 Hz～60Hz, respectively; using the ...
The roasting-free pretreatment method of vanadium slag proposed in this paper uses the waste heat and reaction heat of vanadium slag to complete the mineral phase evolution, which is a green and efficient vanadium extraction technology. ... The pure oxygen oxidation-assisted leaching method of molten vanadium slag provides a …
In this experiment, dry magnetic separation and wet weak magnetic separation of steel slag were separately performed, and the reasonable process …
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 …
Slag is the by-product of iron- and steelmaking processes. Normally, around half to one tonne of slag would be generated for yielding one tonne of rolled iron or steel (Lobato et al. 2015).It was reported that the world steel production was 1.9 billion tonnes in 2016, which suggested that at least around 1 billion tonnes of slag is produced during …
The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed. It is shown that the main advantage of the proposed …
A new process of size classification − fine grain ultrasonic pretreatment flotation (SC-FGUF) was proposed and its separation effect was compared with that of whole-grain flotation (WGF) as well as size classification − fine grain flotation (SC-FGF).
3 calculated to be 1.73. Table 1 Chemical analysis of the copper smelting slag Component Cu Fe (Total) SiO2 S Al2O3 CaO MgO Zn Fe3O4 Content(wt.%) 17.82 33.06 19.13 8.07 2.96 2.12 1.95 1.83 12.9
The development of new technology, comprehensive utilization of copper slag resources, and extraction of valuable metals, such as iron, and can promote the …
The remaining slag then undergoes secondary crushing, followed by another round of magnetic separation to sort out larger iron grains. 03. After the secondary crushing, the iron slag is screened.
In the present work, a novel process for simultaneous recovery of iron, vanadium, titanium, chromium, and manganese from vanadium slag is proposed …
In this work, a new technology of microwave fluidization pretreatment (MFP) was proposed to strengthen the separation of oolitic hematite.
Disposal of slags from alloy steelmaking is a serious problem as the toxic metals in the slag such as chromium and vanadium can be leached out. Recovery of the valuable metals needs an effective, economically viable method with a minimum number of unit processes. In the present work, a novel process for simultaneous recovery of iron, …