Vanadium, as one of the important rare elements, is used mainly to produce certain alloys.
Stone coal is an important vanadium-bearing resource in China and the gross reserves of …

With the continuous development of industrialization and the depletion of ore resources, the
recovery of valuable metals from spent catalysts has attracted the attention of researchers …

In this study, selective extraction and recovery of Au (III) from a tertiary metal solution
containing Au (III), Pt (IV), and Pd (II) were investigated using ionic liquid Aliquat-336. The …

Solvent extraction is widely employed in a variety of industries for both the upgrading and
purification of a range of elements and chemicals. The technology is used in applications as …

Vanadium contained tailing generated from the typical calcium roasting-acid leaching
process is contaminant and waste of resource. Atmospheric and pressurized leaching were …

The solvent extraction of vanadium has been widely studied in inorganic acid systems; but
less in organic acid systems. In this study, the separation and recovery of vanadium and …

Trialkylamine-N235, diluted with sulfonated kerosene containing tri-butyl phosphate, was
used to separate vanadium and impurities as Fe, Al, Mg, K, Ca, P, and Si from a leaching …

Nitrogen oxides (NO X) are often produced in industrial combustion processes and are
among the most harmful air contaminants. Selective catalytic reduction (SCR) is currently the …

Vanadium (IV) bearing chloride solution with the Fe (II)/V (IV) mass ratio of 60 was prepared
to simulate the acidic liquor by hydrochloric acid leaching of reduced vanadium-bearing …

In this paper, a process of selective extraction and separation of vanadium (IV) from acid
leaching solution of spent oil hydrotreating catalyst by a solvent extraction method with P204 …