Slags containing transition metal (chromium and vanadium) oxides-Conversion from ticking bombs to valuable resources: Collaborative studies between KTH and USTB

As the steel industry expands worldwide, slag dumps with transition metals (especially chromium and vanadium) are becoming more common, posing a serious environmental threat. Understanding the properties of slags containing transition metal oxides, as well as how to use the slags to recover and recycle metal values, is critical. Toward this end, the University of Science and Technology Beijing (USTB) and Royal Institute of Technology (KTH) have been collaborating on slags containing transition metals for decades. The research was carried out from a fundamental viewpoint to get a better understanding of the structure of these slags and their properties, as well as industrial practices. The research focused on the three Rs, viz. retention, recovery, and recycling. The present paper attempts to highlight some of the important achievements in these joint studies.

Automated summary

With the expansion of the steel industry worldwide, slag dumps containing transition metals are becoming increasingly common and pose a serious environmental threat. The University of Science and Technology Beijing (USTB) and Royal Institute of Technology (KTH) have collaborated on studying these slags for decades, aiming to understand their properties and recover and recycle metal values. The research focused on retention, recovery, and recycling, and has achieved important results.