Metallurgy is the study of metals and is divided into:

EXTRACTIVE METALLURGY: how to concentrate ores

PHYSICAL METALLURGY: properties of metals

PYROMETALLURGY: reduction and melting of ores in roasters and furnaces. You need to study this part to understand process requirements and communicate with your clients/employers. After a few decades in refractories you may know more about this than fresh metallurgy graduates.