One of the key themes in recent research is the exploration of innovative extraction methods for recovering metals from copper slag. For instance, a review of extraction techniques has identified ...

The extraction and recovery of vanadium from slag, a byproduct of vanadium production, have gained significant attention due to the increasing demand for this metal and the need for sustainable ...

and zinc recovery from copper smelting slag. Using pyrite as a sulfurizing agent, this novel sulfurization-reduction technique facilitates the efficient extraction of these metals. The team's ...

The calcium oxide then reacts with silica (sand) impurities in the haematite, to produce slag – which is calcium silicate. This is separated from the iron and used to make road surfaces.