Journal of Sustainable Metallurgy
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High-Temperature Vacuum Treatment of Aluminum Electrolytic Spent Carbon Cathode
Journal of Sustainable Metallurgy - Tập 8 - Trang 1204-1214 - 2022
The spent carbon cathode (SCC) produced in the aluminum electrolysis process has
been listed as hazardous waste due to excessive soluble fluoride and cyanide. In
a high-temperature vacuum environment, the soluble fluoride and cyanide in SCC
can be evaporated and decomposed, respectively. As a result, its impact on the
environment can be eliminated. The remains and volatiles can be collected for
re...
Characterization of Chromiferrous Pyroxenite and Its Application as Flux in Ferrochrome Production Through an Industrial-Scale Submerged Arc Furnace
Journal of Sustainable Metallurgy - Tập 8 Số 4 - Trang 1650-1661 - 2022
Controlled Ledge Profile of Aluminum Smelting Cell Using Sidewalls Heat Exchangers Supplied with Molten Salt
Journal of Sustainable Metallurgy - - 2023
Nickel Metal Hydride Battery Waste: Mechano-hydrometallurgical Experimental Study on Recycling Aspects
Journal of Sustainable Metallurgy - Tập 6 - Trang 78-90 - 2020
In this research, the recycling of industrially collected and crushed nickel
metal hydride battery waste, rich in valuable metals such as Ni and rare earth
elements (REE), was investigated. The crushed waste was characterized based on
elemental distribution per particle size class and density. Although issues with
sieving, such as agglomeration of shredded separator fibers, were observed, a
good s...
Operational Strategies for Increasing Secondary Materials in Metals Production Under Uncertainty
Journal of Sustainable Metallurgy - Tập 3 - Trang 350-361 - 2016
Increased use of secondary raw materials in metal production offers several
benefits including reduced cost and lowered energy burden. The lower cost of
secondary or scrap materials is accompanied by an increased uncertainty in
elemental composition. This increased uncertainty for different scraps, if not
managed well, results in an increased risk that the elemental concentrations in
the final pro...
Recovery of Rare-Earth Elements from Molten Salt Electrolytic Slag by Fluorine Fixation Roasting and Leaching
Journal of Sustainable Metallurgy - Tập 8 - Trang 522-531 - 2022
Recycling waste containing rare earth has always been a research hotspot. The
molten salt electrolysis process of rare-earth metals and alloys generates a
large amount of waste slag, which contains high rare-earth content and, thus,
has very considerable recovery value. However, the high content of fluorine in
rare-earth molten salt slag brings challenges to the separation of rare-earth
elements (...
Progress in Waste Lead Paste Recycling Technology from Spent Lead–Acid Battery in China
Journal of Sustainable Metallurgy - Tập 8 - Trang 978-993 - 2022
The incorporation of lead into most consumer items such as gasoline, paints, and
welding materials is generally prohibited. However, lead–acid batteries (LABs)
have become popular and have emerged as a major area where lead is utilized.
Appropriate recycling technologies and the safe disposal of LABs (which contain
approximately 65% lead) and lead-containing waste are, therefore, vital for the
sus...
Ionic Liquids and Deep-Eutectic Solvents in Extractive Metallurgy: Mismatch Between Academic Research and Industrial Applicability
Journal of Sustainable Metallurgy - Tập 9 - Trang 423-438 - 2023
The past 10–20 years have seen numerous academic papers describing the benefits
of ionic liquids (ILs) and deep-eutectic solvents (DESs) for leaching, solvent
extraction and electrowinning. The scientific community—including the authors of
this opinion article—have frequently proclaimed these neoteric solvents as
game-changers in extractive metallurgy. Despite this, there have been no
commercial b...
Experimental Study and Thermodynamic Calculations in the CaO–Cu2O–FeO–Fe2O3–SiO2 System for Applications in Novel Copper-Based Processes
Journal of Sustainable Metallurgy - Tập 7 - Trang 300-313 - 2021
A combination of high-temperature experiments and thermodynamic modeling in the
CaO–Cu2O–FeO–Fe2O3–SiO2 system provides the fundamental information necessary to
design and improve processes such as WEEE recycling through black copper route,
continuous converting of copper matte, copper dross smelting, slag cleaning, and
valorization of copper slag. In the experiments, samples were equilibrated on ...
Recovery of Rare-Earth Elements from Neodymium Magnet Waste Using Glycolic, Maleic, and Ascorbic Acids Followed by Solvent Extraction
Journal of Sustainable Metallurgy - Tập 5 - Trang 85-96 - 2018
Rare-earth elements (REEs) play a key role in modern societies as their usage
keeps increasing in new technologies and green energy sources. However, they are
also considered the most critical raw materials in the EU and the USA in terms
of supply. There is an increased global interest in the recycling of REEs from
end-of-life products and industrial waste. Some REEs, such as Nd, Pr, and Dy,
can b...
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