Optimized Iodine Recovery from Zinc Suboxide Derived from Steel Dust Using Alkaline Washing and Air Blowing-Out: A Sustainable Industrial Approach DOI Open Access
Lin Lin, Senlin Tian, Jie Zhao

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(24), P. 10925 - 10925

Published: Dec. 13, 2024

The present paper proposes an advanced process to effectively recover and fully use iodine from steel dust-derived zinc suboxide, with considerations of effectiveness in the industrial viability. It includes, for example, alkali wash dissolution into alkaline solution dust uses mechanical vapor recompression (MVR) concentrate dissolved by preparing air-blowing-out process. hydrogen iodide is also oxidized under acidic conditions addition peroxide form crude iodine, estimated at about 20 tons annually. As a matter fact, using this process, up 1.2 million waste can be treated year, turning what was previously considered something value. thermodynamic relationship between recovery pH value further discussed study, pointing out that conditions, predominantly (I−) iodate (IO3−), while less than 2.8, it its molecular I2. These insights would provide theoretical backbone maximum extraction efficiency, guiding parameters toward optimum judicious resource.

Language: Английский

Mechanism and Kinetics for Copper Leaching by Complexing with Lysine Bearing Two Amino Groups DOI

Mengying Li,

Qingliang Wang, Weijie Guo

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

In order to overcome the environmental problems associated with ammonia volatilization during leaching process, effects of copper by amino acids various numbers and substitution positions functional groups were systematically studied. The results showed that lysine had best efficiency for copper. When concentration was 0.2 mol/L, temperature 20 °C, molar ratio 3.88, stirring speed 250 rpm, pH 10, time 14 h, rate reached 99%. containing smelting slag has an excellent effect on selective kinetic indicated rate-limiting step process is controlled interfacial chemical reaction, apparent activation energy 64.8 kJ/mol. Fourier transform infrared spectroscopy (FT-IR) X-ray photoelectron (XPS) analyses confirmed COO- -NH in can form complexes ions. Compared conventional methods, this approach not only achieves environmentally benign disposal heavy metal pollutants but also provides a novel strategy green recovery valuable metals from secondary resources.

Language: Английский

Citations

0
Investigating the selective extraction of metals from nickel sulfide tailings using salt roasting and acid leaching DOI
Emmanuel Atta Mends, S. Arthur, Shokrullah Hussaini

et al.

Minerals Engineering, Journal Year: 2025, Volume and Issue: 231, P. 109433 - 109433

Published: May 22, 2025

Language: Английский

Citations

0
Recovery of Lesser-Known Strategic Metals: The Gallium and Germanium Cases DOI Open Access
José Ignacio Robla, Manuel Moreno Alonso, Francisco José Alguacil

et al.

Processes, Journal Year: 2024, Volume and Issue: 12(11), P. 2545 - 2545

Published: Nov. 14, 2024

Being not as popular other elements, such cobalt, lithium, and rare earth both gallium germanium have wide use in target developments/industries, thus making them valuable strategically critical metals. The principal sources for the recovery of metals are secondary wastes bauxite (gallium) or zinc (germanium) industries; also, their recycling from waste materials is necessary. characteristics these make hydrometallurgical operations widely useful recovering various containing them. present work reviews most recent applications (in 2024) applied to resources.

Language: Английский

Citations

1
Optimized Iodine Recovery from Zinc Suboxide Derived from Steel Dust Using Alkaline Washing and Air Blowing-Out: A Sustainable Industrial Approach DOI Open Access
Lin Lin, Senlin Tian, Jie Zhao

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(24), P. 10925 - 10925

Published: Dec. 13, 2024

The present paper proposes an advanced process to effectively recover and fully use iodine from steel dust-derived zinc suboxide, with considerations of effectiveness in the industrial viability. It includes, for example, alkali wash dissolution into alkaline solution dust uses mechanical vapor recompression (MVR) concentrate dissolved by preparing air-blowing-out process. hydrogen iodide is also oxidized under acidic conditions addition peroxide form crude iodine, estimated at about 20 tons annually. As a matter fact, using this process, up 1.2 million waste can be treated year, turning what was previously considered something value. thermodynamic relationship between recovery pH value further discussed study, pointing out that conditions, predominantly (I−) iodate (IO3−), while less than 2.8, it its molecular I2. These insights would provide theoretical backbone maximum extraction efficiency, guiding parameters toward optimum judicious resource.

Language: Английский

Citations

0