Production of Pure Iron Strip Specimens by Electrodeposition from a Chloride Bath for Use in Tensile Tests

Kolev, Krasimir; Yanachkov, Boris; Drenchev, Lyudmil; Kostadinov, I.; Lyutov, L.

doi:10.1007/s11665-023-08021-1

Cited by 2 publications

(2 citation statements)

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“…In recent years, ironmaking processes including solvent extraction, ions exchange, and electrochemistry have been proposed and developed for the high-purity iron production. [6][7] Wherein the electrochemistry strategy using electrical energy to directly produce iron is relative sustainable and produces less pollution, [8][9][10] therefore, the electrochemical ironmaking strategy has been considered as a great promising method for high-purity metallic iron production.…”

Section: Introductionmentioning

confidence: 99%

“…Electrochemical metallurgy offers unique environmentally friendly and short-process advantages in the production of high-purity iron. [9][10][11] Actually, the electrochemical ironmaking can be realized by both water electrolysis and non-water electrolysis (molten salt electrolysis and molten oxide electrolysis). [7,[12][13][14] Commonly, the low-temperature aqueous solution electrolysis method for the preparation of high-purity iron uses acid/alkaline solvent and soluble ferric chlorides as the electrolyte and iron source, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Direct Electrodeposition of High-Purity Iron from Fe2O3 in Molten Calcium Chloride

Pang,

Li,

Chen

et al. 2024

ISIJ Int.

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The low-cost production of high-purity metallic iron is of great practical importance. Herein, we report the direct production of high-purity metallic iron (99.92 %) via a one-step electrochemical strategy in molten CaCl 2 -CaO-Fe 2 O 3 system at 850 o C. The involved CaO-assisted dissolution of Fe 2 O 3 and electrodeposition mechanism were systematically studied, and the obtained iron products were characterized using scanning electron microscopy, inductively-coupled high-frequency plasma emission spectrometry, and glow discharge mass spectrometry. The results show that the crystalline iron products with tunable morphologies can be obtained in a controlled manner. The electrolysis parameters (voltage, current density, electrodeposition time and substrate material) have significant effects on the electrodeposition process and the characteristics of iron products. In particular, highpurity dense iron film can be directly electrodeposited at 15 mA•cm −2 , and its thickness increases considerably with increasing electrodeposition time. Furthermore, the as-deposited iron product can also be processed into bulk iron materials with high-purity of 99.995 wt.% by plasma melting for the potential applications. In general, this one-step electrodeposition process provides an acid-/alkalinefree strategy for the facile production of high-purity iron materials direct from Fe 2 O 3 .

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