smelter

This term carries a heavy industrial connotation, evoking images of extreme heat, molten liquids, and massive machinery. It is rarely used in a domestic or small-scale context, instead referring to the heavy-duty infrastructure required for metallurgy. While a foundry melts pre-existing metal to cast it into shapes, a smelter is specifically focused on the chemical process of separating the metal from the rock or ore. It suggests a gritty, high-temperature environment often associated with the early Industrial Revolution and modern mining towns.