The crossword solutions for the term PROCESSES ORE is SMELTS. Smelting is a process of extracting valuable metals from ore by heating it to a high temperature. It is an ancient process that has been used since the Bronze Age. Smelting involves heating the ore to a point where the metal separates from the rock and can be collected. The process also involves adding fluxes, such as limestone, to the ore to help separate the metal from the rock. The end result is a metal that is purer than the ore itself.