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Metals
Special Issues
Recent Research on Zinc Resource Extraction, Recycling and Utilization
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Recent Research on Zinc Resource Extraction, Recycling and Utilization

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Extractive Metallurgy".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1567

Special Issue Editor

Prof. Dr. Shiwei Li

E-Mail Website
Guest Editor
School of Metallurgy and Energy Engineering, Kunming University of Science and Technology, Kunming, China
Interests: refractory zinc ore; low grade zinc ore; secondary resources containing zinc; sintered ash; blast furnace gas ash; electric furnace steelmaking ash; hot dip galvanized zinc ash; ultrasonic; new metallurgical technology

Special Issue Information

Dear Colleagues,

Zinc is an important nonferrous metal that is widely used in anti-corrosion, batteries, alloys, chemical industry and other fields. With the ongoing rapid economic development, the consumption of zinc has increased year by year. In 2020, the global consumption of zinc exceeded 13 million tons. With the continuous high-level operation of zinc consumption and the continuous decline of high-grade ore reserves, zinc-containing refractory resources have attracted a great deal of attention. This Special Issue focuses on the research progress in the extraction, recycling and utilization of refractory zinc resources and secondary resources. All these topics will be covered in this collection of contributions, including low-grade zinc ore, sintered ash, blast furnace gas ash, electric furnace steelmaking ash and hot-dip-galvanized zinc ash, etc. In this Special Issue, we welcome articles on new metallurgical processes and equipment for refractory zinc resources and secondary resources.

Prof. Dr. Shiwei Li
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • refractory zinc resources
  • secondary resources
  • comprehensive recovery
  • recycling
  • ultrasonic
  • field-strengthening technology

Published Papers (1 paper)

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Research

13 pages, 4671 KiB  
Article
Application of the Microwave and Ultrasonic Combined Technique in the Extraction of Refractory Complex Zinc Ore
by Junchang Liu, Shiwei Li, Libo Zhang and Kun Yang
Metals 2023, 13(2), 356; https://doi.org/10.3390/met13020356 - 10 Feb 2023
Cited by 2 | Viewed by 1312
Abstract
This paper proposes a combined microwave and ultrasonic technique that aims to extract the refractory mineralogical properties of complex zinc ore. This technique consists of two steps: microwave-assisted phase transformation and ultrasonic-assisted complexation leaching. During the microwave-assisted phase transformation step, the refractory zinc [...] Read more.
This paper proposes a combined microwave and ultrasonic technique that aims to extract the refractory mineralogical properties of complex zinc ore. This technique consists of two steps: microwave-assisted phase transformation and ultrasonic-assisted complexation leaching. During the microwave-assisted phase transformation step, the refractory zinc phases transform into manageable phases using doping oxidation agents. In the ultrasonic-assisted complexation leaching step, the effect of NTA3 on Zn2+ species distribution is explored. The results show that microwave roasting with 20% Na2O2 at 600 °C for 15 min adequately transforms ZnS, ZnCO3 and Zn2SiO4 into ZnO and avoids the generation of Zn2SiO4. Further, 0.5 mol/L NTA3− (nitrilotriacetic acid) is especially effective as a complex additive for complexes with Zn2+ as Zn (NTA)24−. The ultrasonic technique can reduce the diffusion resistance and open the products in the leaching process, improving zinc leaching by 4.7%. The degree of zinc recovered from zinc ore can reach 91.4% when leach is assisted with 225 W ultrasonic force at 80 °C for 75 min. This paper shows great potential for the green extraction of non-traditional zinc-containing resources. Full article
(This article belongs to the Special Issue Recent Research on Zinc Resource Extraction, Recycling and Utilization)
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