Gallium Electrowinning in Complex Solutions Produced by a Zinc Hydrometallurgy System.

Gallium metal is scattered within Fankou lead-zinc ore, and the existing zinc hydrometallurgy process includes a leaching-extraction-electrowinning sequence to recover the gallium metal. However, impurities from lead-zinc ore have many adverse effects on the gallium electrowinning process such as strong hydrogen evolution reaction and low mass transfer rate, which lead to low current efficiencies and poor quality cathode gallium during gallium electrowinning process. In order to achieve efficient separation and recovery of gallium from zinc hydrometallurgy system, the effects of Al, Zn, and OH impurities on gallium electrowinning were systematically investigated in this study.

Experimental determination and thermodynamic optimization of the LiF-NdF system.

Neodymium is mainly obtained by electrolysis of a molten LiF-NdF-NdO system. LiF-NdF is a basic system, and the phase diagram of this system provides important information in the production of electrolytic neodymium. An accurate LiF-NdF binary phase diagram helps in the selection of the appropriate molten salt component in production and optimizing the production process, which is of great significance to improve the electrolysis efficiency and reduce the production cost.

Occurrence Behaviors of As/Sb/Bi in Copper Anode Slime and Their Separation by Compound Leaching Followed by Stepwise Precipitation.

Copper anode slime is the main raw material for the extraction of rare and precious metals. However, the recovery of rare and precious metals still faces great challenges due to the variety of impurities and the complex occurrence phase. In view of this, this research focuses on the occurrence mineral phases of arsenic, antimony, and bismuth in copper anode slime, and the process consisting of chloride leaching and selective precipitation of arsenic and bismuth is proposed.

Highly Selective Adsorption of TcO/ReO by a Novel Polyamide-Functionalized Polyacrylamide Polymer Material.

The treatment of radioactive wastewater is one of the major problems in the current research. With the development of nuclear energy, the efficient removal of TcO in radioactive wastewater has attracted the attention of countries all over the world. In this study, a novel functional polyamide polymer p-(Amide)-PAM was synthesized by the two-step method.

Synthesis of Tert-Octylsalicylaldoxime and Its Application in Extraction of Cu(II).

The alkyl salicylaldoxime has attracted more and more attention recently due to the complex branched alkyl groups. In this study, a novel alkyl salicylaldoxime, tert-octylsalicylaldoxime, was successfully synthesized by the one-pot method. The yield and purity by the elemental analysis were 96.

Closed-circulating CO sequestration process evaluation utilizing wastes in steelmaking plant.

The wastes network system exploration in metallurgical process imposes of great significance for advancing green circular economy in steel plant. This paper originally proposes a closed-circulating CO sequestering process for wastes appreciation and harmless disposal, and the effect of two circulation strategy, i.e.