Development of Charge Pelletizing Technology Based on Electric Arc Furnace Dust for Pyrometallurgical Processing in Rotary Kilns

Yakornov, S. A.; Panshin, A. M.; Козлов, П. А.; Ivakin, D. A.

doi:10.1007/s11015-017-0528-3

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…3. The mainstream method, the Waelz kiln process, is widely used to remove zinc from EAFD and has been applied in more than 75% of the world (Yakornov et al 2017). It has a large capacity (40-250 t/year), higher zinc removal efficiency (over 90%), and lower operating temperature (1150℃ to 1200℃) (Wang et al 2021b).…”

Section: Advantages Of Zinc Removal From Eafd By Microwave Heatingmentioning

confidence: 99%

Recent developments on the removal of zinc from electric arc furnace dust by using microwave heating

Xiong,

Wang,

Qiu

et al. 2024

Environ Sci Pollut Res

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Electric arc furnace dust (EAFD) is a hazardous by-product of steel production. As global steel output increases, substantial amounts of EAFD are produced, which causes significant environmental issues. EAFD contains amounts of Fe and Zn, which could be reused as raw materials in the steelmaking process. However, zinc oxides can be reduced and vaporized during this process, forming zinc vapor that contaminates equipment surfaces and causes damage. Consequently, various pyrometallurgical methods have been proposed for zinc removal from EAFD. Due to the extensive usage of carbonaceous materials, these methods contribute to significant CO 2 , raising concerns about greenhouse gas emissions.Microwave heating offers an efficient, energy-saving, and environmentally friendly alternative to pyrometallurgical approaches. EAFD can generate heat under microwave irradiation without carbon addition, which means the CO 2 emissions can be reduced by replacing the reductant in the microwave heating process. Furthermore, microwaves enhance zinc removal reactions to a certain extent, resulting in higher efficiency. Thus, employing microwave heating for EAFD processing has significant potential for future development. This paper reviews recent research on using microwave heating for zinc removal from EAFD, focusing on the heating behavior of EAFD in microwaves and the mechanisms of zinc removal. This review will be crucial for researchers working on processing EAFD using microwave heating and could help guide the development of more sustainable and efficient methods.

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Section: Advantages Of Zinc Removal From Eafd By Microwave Heatingmentioning

confidence: 99%

Recent developments on the removal of zinc from electric arc furnace dust by using microwave heating

Xiong,

Wang,

Qiu

et al. 2024

Environ Sci Pollut Res

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“…Similarly, it will reduce the intake of energy and coke. [113][114][115][116] Some studies have reported the different methods of pyrometallurgical metal recovery from industrial wastewater sludge, [117][118][119][120][121][122] including Waelz, Inmetco, Z-Star, and plasma methods. The summary of the characteristics of applied methods is tabulated in Table 5.…”

Section: Other Recovery Processes (Pyrometallurgical Treatment)mentioning

confidence: 99%

An overview of metals extraction and recovery from industrial wastewater sludge

Al‐Mutair,

Kumar,

Al‐Mur

et al. 2024

Can J Chem Eng

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Industrial wastewater sludge is one of the vital sources of metals, including heavy metals, valuable metals, and precise metals. Apart from metals' necessity and economic value, some are toxic and harmful to the environment. This review explores the technologies currently applied for extracting and recovering heavy metals from industrial wastewater sludge. The technologies have been explained, and the merits and demerits of methods, as reported in past investigations, have been highlighted. The salient findings of this review are that the hydrometallurgical processes using acid leaching (H2SO4, HNO3, HCl, etc.) have been considered for the metal extraction process. Metal dissolution, concentration/purification, and recovery are the main stages of hydrometallurgical processes. The selection of successive metal recovery methods depends on the concentration of metals and chemical characteristics of industrial wastewater sludge. Different metal purification and concentrations were reported, including adsorption, ion exchange solvent extraction, and so forth, while precipitation and electrodeposition were mainly applied for metal recovery from industrial wastewater sludge. In this review, the cost and economic viability of the metal recovery process are also evaluated by previous reported studies. This review may be considered a valuable source of information for environmentally friendly and cost‐effective methods for metal recovery from industrial wastewater sludge.

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“…Previous researchers have summarized the industrial applications of pyrometallurgical technologies in treating chromium-containing metallurgical dust [4,19,27,[74][75][76][77][78][79], such as Waelz technology, Inmetco, Z-Star, and plasma technology (Table 7).…”

Section: (1) Pyrometallurgical Processmentioning

confidence: 99%

Valuable Recovery Technology and Resource Utilization of Chromium-Containing Metallurgical Dust and Slag: A Review

Xu,

Liu,

et al. 2023

Metals

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As a type of metallurgical solid waste with a significant output, chromium-containing metallurgical dust and slag are gaining increasing attention. They mainly include stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag, which contain significant amounts of valuable elements, such as chromium, iron, and zinc, as well as large amounts of toxic substances, such as hexavalent chromium. Achieving the harmless and resourceful comprehensive utilization of chromium-containing metallurgical dust and slag is of great significance to ensuring environmental safety and the sustainable development of resources. This paper outlines the physicochemical properties of stainless steel dust, stainless steel slag, ferrochrome dust, and ferrochrome slag. The current treatment technologies of chromium-containing metallurgical dust and slag by hydrometallurgy, the pyrometallurgical process, and the stabilization/solidification process are introduced. Moreover, the comprehensive utilization of resources of chromium-containing metallurgical dust and slag in the preparation processes of construction materials, glass ceramics, and refractories is elaborated. The aim of this paper is to provide guidance for exploring effective technology to solve the problem of chromium-containing metallurgical dust and slag.

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Development of Charge Pelletizing Technology Based on Electric Arc Furnace Dust for Pyrometallurgical Processing in Rotary Kilns

Cited by 10 publications

References 2 publications

Recent developments on the removal of zinc from electric arc furnace dust by using microwave heating

Recent developments on the removal of zinc from electric arc furnace dust by using microwave heating

An overview of metals extraction and recovery from industrial wastewater sludge

Valuable Recovery Technology and Resource Utilization of Chromium-Containing Metallurgical Dust and Slag: A Review

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