Utilization of electric arc furnace dust as a filler for unsaturated polyester resin

Gamea, Eman G.; Anwar, Ahmed M.; Ezzat, Abbas Anwar; El-Rafey, M.E.

doi:10.1016/j.psep.2022.01.079

Cited by 6 publications

(5 citation statements)

References 49 publications

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“…The emitted volatile components are quickly converted into the corresponding oxides in contact with air after the combustion and cooling of the exhaust gases [1,2,4,[18][19][20][21]. The oxides in the slag mixed with the metal vapors and generated dust are removed from the furnace by the rising hot gas flow and then enter the gas treatment system along with the gas flow, which is oxidized, vulcanized, or chlorinated in the dust collection system, forming EAF dust that is collected in gravity or electrostatic dust collectors and bag filters [2,5,12,16,20,[22][23][24][25]. Purified gas containing small amounts of nitrogen oxides and ozone meets environmental standards and is released into the atmosphere [23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

“…Generally, during the production of one ton of crude steel, about 10-20 kg of EAF dust is generated [27]. To a large extent, the composition of EAF dust depends on the electric arc furnace operating conditions, the characteristics of the scrap iron charged to the furnace, the operating period, and the specification of the produced steel, and it is also specific to each plant [1,12,17,18,[23][24][25][27][28][29][30][31][32][33][34].…”

Section: Introductionmentioning

confidence: 99%

“…The dust from an electric arc furnace contains significant amounts of zinc and solid iron oxides, as well as variable amounts of lead, calcium, manganese, nickel, copper, cadmium, magnesium, silicon, chromium, fluorine, chlorine, etc. [6,7,9,12,25,[29][30][31][35][36][37]. The zinc content of EAF dust varies between 2 and 40% [5,22,26,27].…”

Section: Introductionmentioning

confidence: 99%

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Application of a Simple Pretreatment in the Process of Acid Leaching of Electric Arc Furnace Dust

Trifunović,

Milić,

Avramović

et al. 2024

Metals

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Experimental investigations of the effectiveness of the pretreatment of the acid leaching process of a representative sample of electric arc furnace dust (EAF dust) and characterization of a representative sample were performed. As EAF dust is globally defined as hazardous solid industrial waste, and it contains a high percentage of zinc and other useful components, in this paper, the application of pretreatment will be carried out in order to increase the efficiency of the further process of acid leaching, all with the aim of using EAF dust as a secondary raw material for metal valorization. The pretreatment involved the application of a simple process of leaching the EAF dust sample with distilled water. Under the following defined optimal leaching conditions: time—30 min, ratio of solid to liquid phase—1:10, temperature—ambient, and stirring speed—500 rpm, a reduction in the content of water-soluble components was achieved, namely, 83% Cl, 92% K, 74% Na, 14% Cd, 15% Ca, and 19% F. The application of the pretreatment enables significantly better filtration of the suspension and increases the leaching efficiency of zinc and other useful components in the further process of leaching EAF dust with a sulfuric acid solution, compared with the process of direct acid leaching of EAF dust.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Application of a Simple Pretreatment in the Process of Acid Leaching of Electric Arc Furnace Dust

Trifunović,

Milić,

Avramović

et al. 2024

Metals

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“…Additionally, it can be used as a filler to improve the mechanical properties of polymer composites, such as tensile strength and hardness similar to fly ash particles [13,14], as well as reducing flammability. Thus, dust has been used as a filler for unsaturated polyester resin [15], EVA-polyethylene-butene blends [16], etc. Several studies use EAFD-polymer systems as a phase change material (PCM) due to their high thermal energy storage (TES) capacity as latent heat from the phase change [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies use EAFD-polymer systems as a phase change material (PCM) due to their high thermal energy storage (TES) capacity as latent heat from the phase change [17][18][19]. In addition, there are works devoted to the creation of EAFD polymer matrix composites based on epoxy resins [15] and unsaturated polyester resin [20] and the study of their mechanical properties. The presence of a large amount of iron in the composition of EAFD and the finely dispersed form of the powder make it possible to use it as a filler that provides effective absorption of electromagnetic radiation in various wavelength ranges.…”

Section: Introductionmentioning

confidence: 99%

Composite High-k Films Based on Polyethylene Filled with Electric Arc Furnace Dust and MWCNT with Permittivity Synergetic Effect

et al. 2023

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The production of three-phase composites is a relevant and effective approach to obtain materials with the required mechanical and dielectric properties. In this work, dust, which is a waste product of steelmaking and is formed during the gas cleaning of electric arc furnaces at the production base of Severstal, was used as a functional filler for the low-density polyethylene polymer matrix. The fractional, elemental, qualitative, and quantitative phase composition of the native dust was studied using laser diffraction, energy-dispersive X-ray phase analysis, and X-ray fluorescence spectrometry. An increase in the permittivity of the dust was achieved due to its reduction in a hydrogen atmosphere and, as a consequence, a change in the elemental and phase composition causing an increase in the concentration of metallic iron. Composite films were obtained using a blending roll mill at temperatures of 130 and 140 °C. The concentration of the main filler was 18.75, 37.5, and 75 wt.%. Additionally, a conductive additive in the form of MWCNTs was introduced into the composition of the composites in an amount of 0.25 wt.%. The uniformity of the filler distribution in the polymer matrix was assessed from electron micrographs. The dielectric properties of fillers and composite films based on polyethylene filled with electric arc furnace dust and MWCNTs were studied using impedance spectroscopy in the frequency range of 10–106 Hz. The use of reduced dust at a concentration of 25.8 vol.% combined with 0.25 wt.% MWCNTs in the composition of the composite film provided an increase in ε′ to 13.5 at tan δ = 0.038. Thus, three-phase polymer matrix composites based on LDPE using dust as a filler with a conductive microadditive of MWCNTs have a synergistic effect, which manifests itself in an increase in the permittivity and a decrease in dielectric losses.

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Direct Conversion of Electric Arc Furnace Dust to Zinc Ferrite by Roasting: Effect of Roasting Temperature

Tang

Peng

Wang

et al. 2023

J. Sustain. Metall.

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Utilization of electric arc furnace dust as a filler for unsaturated polyester resin

Cited by 6 publications

References 49 publications

Application of a Simple Pretreatment in the Process of Acid Leaching of Electric Arc Furnace Dust

Application of a Simple Pretreatment in the Process of Acid Leaching of Electric Arc Furnace Dust

Composite High-k Films Based on Polyethylene Filled with Electric Arc Furnace Dust and MWCNT with Permittivity Synergetic Effect

Direct Conversion of Electric Arc Furnace Dust to Zinc Ferrite by Roasting: Effect of Roasting Temperature

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