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 …

NO x is a common air pollutant that can cause a variety of problems including environmental
pollution and human illness. Selective catalytic reduction (SCR) is currently the most …

The demand for V 2 O 5-WO 3/TiO 2 catalysts is growing as many countries impose
increasingly stricter limits on nitrogen oxide emissions. Unfortunately, after service, the spent …

Catalysts for selective catalytic reduction are widely used for the reduction of nitrogen oxides
into gaseous nitrogen in many industrial applications. These catalysts usually contain …

Iron seriously affects the quality of TiO 2 support recovered from spent selective catalytic
reduction (SCR) catalyst. In this paper, the iron removal and TiO 2 support recovery from …

The widespread use of selective catalytic reduction (SCR) catalysts has resulted in a large
accumulation of spent SCR catalysts. These spent catalysts present a significant risk of …

Spent hazardous selective catalytic reduction (SCR) catalysts are both wastes and
secondary resources. The harmless disposal and value-added utilization are necessary. In …

Abstract The catalyst Mo–Ni/Al 2 O 3 is commonly used in the hydrodesulfurization of
petroleum fractions. The catalyst is discarded when its catalytic activity does not meet the …

Abstract The V 2 O 5-WO 3/TiO 2 catalyst has been used for selective catalytic reduction
(SCR) of NO x for decades and is named as SCR catalyst. Nine ionic liquids (ILs) were …

Large amounts of spent selective catalytic reduction (SCR) catalysts were produced in
industry after losing their activity. This study developed a clean and effective route of …