Separation and Recovery of Rare and Precious Metals from Secondary Resources

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

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1931

Special Issue Editor


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Guest Editor
School of Nuclear Science and Technology, University of South China, 28 Changsheng West Road, Hengyang 421001, China
Interests: adsorption; separation; rare earth; radionuclides

Special Issue Information

Dear Colleagues,

With the development of technology and the aggravation of resource consumption, it is more and more urgent to separate and recover rare metals from various secondary resources and industrial wastes, such as spent nuclear fuel, various solid and liquid waste during mineral production, electronic and other industrial wastes, etc. As a result, this Special Issue is focused on the development and applications of new materials and technologies with special attention given to the separation and recovery of rare and precious metals from secondary resources.

Articles concerning the separation and recovery of rare and precious metals in any method are welcome. This is an excellent opportunity for chemistry, metallurgy and materials scientists and engineers all over the world to get their latest work published on all aspects of separation material development as well as separation technology development related to rare and precious metals. Therefore, this Special Issue will cover—but is not limited to—the following fundamental and applied research topics:

  • Adsorption;
  • Extraction;
  • Ion exchange;
  • New extractant design;
  • New adsorbent development;
  • New separation method development;
  • Seapration and recovery of rare and precious metals.

In keeping with the long-standing tradition of publishing the most recent and highest quality work on Special Issues of our Metals journal, this Special Issue features a collection of manuscripts entitled “Separation and Recovery of Rare and Precious Metals from secondary resources”. This issue features the finest and latest breaking articles on the separation and recovery of rare and precious metals from 2022 and is listed with the main indexing services, making the articles readily searchable and available on the web and citable.

Please ensure your paper is submitted on time, and thank you for your interest in the “Separation and Recovery of Rare and Precious Metals from secondary resources” on Metals.

Prof. Dr. Shunyan Ning
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

  • adsorption
  • extraction
  • ion exchange
  • new extractant design
  • new adsorbent development
  • new separation method development
  • separation and recovery of rare and precious metals

Published Papers (1 paper)

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Research

15 pages, 4135 KiB  
Article
Preparation of Porous Composite Phase Na Super Ionic Conductor Adsorbent by In Situ Process for Ultrafast and Efficient Strontium Adsorption from Wastewater
by Yuliang Chen, Xiangbiao Yin, Hao Fu, Zheyang Lin, Guangcan Ma, Xinpeng Wang, Qingsong Wang and Fangqiang Chen
Metals 2023, 13(4), 677; https://doi.org/10.3390/met13040677 - 29 Mar 2023
Cited by 1 | Viewed by 1243
Abstract
Strontium, the main component of radioactive nuclear wastewater, is characterized by a high fission yield and an extended half-life. It is easily absorbed by the human body, thus greatly threatening the environment and the human body. In this study, a mesoporous composite phase [...] Read more.
Strontium, the main component of radioactive nuclear wastewater, is characterized by a high fission yield and an extended half-life. It is easily absorbed by the human body, thus greatly threatening the environment and the human body. In this study, a mesoporous composite phase sodium superionic conductor (NVP@NMP) was synthesized by the droplet template method, and the rapid capture of Sr2+ from wastewater was achieved by constructing a nano-heterogeneous interface to increase the ion diffusion rate. NVP@NMP showed efficient and rapid removal of strontium ions in adsorption kinetics, isothermal adsorption, solution pH, and interfering ions concentration tests, especially using the equilibrium time of 2 min for strontium absorption by NVP@NMP and a maximum theoretical adsorption capacity of 361.36 mg/g. The adsorption process was spontaneous, endothermic, and feasible. At higher concentrations of other competing ions (Na, K, Ca, Mg, and Cs), the adsorbent exhibited higher selectivity towards Sr2+.TEM, XPS, and XRD analyses revealed that ion exchange was the main mechanism for the NVP@NMP ultrafast adsorption of Sr2+. In this research, we investigated the feasibility of ultrafast strontium capture by sodium superionic conductor structured phosphates and explained the ultrafast strontium adsorption mechanism of NASICON materials through XPS. Full article
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