Solvent Extraction and Metal Recovery
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Extractive Metallurgy".
Deadline for manuscript submissions: closed (28 February 2022) | Viewed by 1228
Special Issue Editor
Interests: metal recovery; secondary resources; mineral processing; pyrometallurgy; materials characterization; waste management; electrochemistry; hydrometallurgy
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
There has been an increasing push toward recovery of metals from primary and secondary resources. Solvent extraction (SX), known as liquid–liquid extraction, is widely used to separate and concentrate metallic ions from aqueous solution in a broad field of industries, such as ore processing, agriculture, pharmaceuticals, petrochemicals, food industry, and industrial chemicals. Due to the growing demand for higher purity metals and the necessity to process low-grade ores with great complexity using environmentally friendly processing routes, SX is a well-established technique employed in hydrometallurgical processing of many metals such as Zn, Cu, Ni, Co, Fe, Cr, and rare earth metals. The simplicity, speed, selectivity, cost-effective and wide scope make SX the favored separation technique for metal recovery from aqueous waste streams. Nowadays, there is a large number of available extractants to selectively extract the desired metals, leaving other constituents in the aqueous raffinate, including acidic, basic and solvating. Ionic liquids also provide new prospects to process low-grade metal ores and to recycle metal ions. In addition, some modern and rapid methods have emerged to reduce solvent, time and energy consumption for maximizing the metal recovery, such as microwave and ultrasound treatment and synergic extraction.
This Special Issue is focused on solvent extraction of a particular metal ion or group of ions from various leach solutions or industrial waste waters, leaving behind the unwanted ions. Reviews and original articles in the areas of SX principle, extractant selection, extraction process optimization, as well as industrial applications, are welcomed.
Dr. Zhe Wang
Guest Editor
Manuscript Submission Information
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Keywords
- solvent extraction
- metal recovery
- separation
- purification
- resource utilization
- extractive hydrometallurgy
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